U.S. patent application number 17/161920 was filed with the patent office on 2021-12-23 for novel salts and polymorphs of scy-078.
This patent application is currently assigned to SCYNEXIS, INC.. The applicant listed for this patent is SCYNEXIS, INC.. Invention is credited to YI ZHANG.
Application Number | 20210395296 17/161920 |
Document ID | / |
Family ID | 1000005813311 |
Filed Date | 2021-12-23 |
United States Patent
Application |
20210395296 |
Kind Code |
A1 |
ZHANG; YI |
December 23, 2021 |
NOVEL SALTS AND POLYMORPHS OF SCY-078
Abstract
SCY-078 is a glucan synthase inhibitor with antimicrobial
activity. Novel salts and polymorph forms of SCY-078 are disclosed
herein. The disclosure also relates to pharmaceutical compositions,
methods of use, and methods of preparing the novel salts and
polymorphs of SCY-078.
Inventors: |
ZHANG; YI; (Suzhou,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SCYNEXIS, INC. |
Jersey City |
NJ |
US |
|
|
Assignee: |
SCYNEXIS, INC.
Jersey City
NJ
|
Family ID: |
1000005813311 |
Appl. No.: |
17/161920 |
Filed: |
January 29, 2021 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
16437693 |
Jun 11, 2019 |
10927142 |
|
|
17161920 |
|
|
|
|
16203273 |
Nov 28, 2018 |
10370406 |
|
|
16437693 |
|
|
|
|
14995593 |
Jan 14, 2016 |
10174074 |
|
|
16203273 |
|
|
|
|
PCT/CN2015/070967 |
Jan 19, 2015 |
|
|
|
14995593 |
|
|
|
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
C07C 59/265 20130101;
C07J 71/0005 20130101; C07D 405/14 20130101 |
International
Class: |
C07J 71/00 20060101
C07J071/00; C07C 59/265 20060101 C07C059/265; C07D 405/14 20060101
C07D405/14 |
Claims
1-84. (canceled)
85. A pharmaceutically acceptable salt of compound 1: ##STR00003##
wherein the salt is selected from citrate, hippurate, mesylate, and
fumarate, and wherein the pharmaceutically acceptable salt of
compound 1 has a chemical purity of at least 98%.
86. The pharmaceutically acceptable salt of claim 85, wherein the
pharmaceutically acceptable salt has a kinetic solubility of one or
more of the following: from 2 mg/mL to 5 mg/mL at 4 hours in
dextrose buffer at pH 5.5, from 2 mg/mL to 9 mg/mL at 24 hours in
dextrose buffer at pH 5.5, from 1 mg/mL to 5 mg/mL at 4 hours in
phosphate buffer at pH 6.0, from 4 mg/mL to 8 mg/mL at 24 hours in
phosphate buffer at pH 6.0, from 12 mg/mL to 21 mg/mL at 1 hour in
SGF media, or from 17 mg/mL to 22 mg/mL at 24 hours in FaSSIF
media.
87. The pharmaceutically acceptable salt of claim 86, wherein the
pharmaceutically acceptable salt has a water sorption of not
greater than 7% at 25.degree. C. and 80% relative humidity.
88. A method of preparing a pharmaceutical composition for
injection, comprising dissolving the pharmaceutically acceptable
salt of claim 85 in a pharmaceutically acceptable carrier.
89. The method of claim 88, wherein the step of dissolving the
pharmaceutically acceptable salt in the pharmaceutically acceptable
carrier takes less than 24 hours.
90. A method of treating a fungal infection in a patient in need
thereof, comprising administering to the patient a pharmaceutical
composition comprising an effective amount of the pharmaceutically
acceptable salt of claim 85 and a pharmaceutically acceptable
carrier, wherein the pharmaceutical composition is suitable for
injection into a human.
91. The method of claim 90, wherein the administering comprises
administration by intravenous injection.
92. The method of claim 90, wherein the fungal infection is a
Candida and/or Aspergillus fungal infection.
93. The method of claim 90, wherein the fungal infection is
Invasive Candidiasis and/or Invasive Aspergillosis.
Description
[0001] This application claims the benefit of priority to
International Application No. PCT/CN2015/070967, filed Jan. 19,
2015, the contents of which are incorporated herein by
reference.
[0002] SCY-078 (or "compound 1") is a glucan synthase inhibitor
useful as an antifungal compound. SCY-078 is useful for treating,
among other things, Invasive Candidiasis and Invasive
Aspergillosis. Other antimicrobial utilities of SCY-078 are
disclosed, for example, in U.S. Pat. No. 8,188,085, the relevant
portions of which are incorporated herein by reference. SCY-078 has
the following chemical structure:
##STR00001##
[0003] The present disclosure is directed to, among other things,
pharmaceutically acceptable salts of SCY-078 and polymorphs of
those salts. In another embodiment, the salts and polymorphs
thereof exhibit certain kinetic solubilities. Higher kinetic
solubilities can be importance in formulations, such as intravenous
formulations. In yet another embodiment, the salts and polymorphs
thereof exhibit certain hygroscopicities. Hygroscopity has been
found to play an important role in the preparation of solid dosage
forms and the selection of excipients. The present disclosure is
further directed to, among other things, methods of preparing
pharmaceutically acceptable salts of SCY-078 and polymorphs
thereof.
[0004] The present disclosure is additionally directed to, among
other things, pharmaceutical compositions comprising
pharmaceutically acceptable salts of SCY-078 and polymorphs
thereof. In another embodiment, the disclosure relates to methods
of preparing pharmaceutical compositions comprising
pharmaceutically acceptable salts of SCY-078 and polymorphs thereof
suitable for injection or intravenous administration. In yet
another embodiment, the present disclosure relates to method of
treating fungal infections by administering pharmaceutically
acceptable salts of SCY-078 and polymorphs thereof.
BRIEF DESCRIPTION OF DRAWINGS
[0005] FIG. 1 is an X-ray Powder Diffraction "XRPD" pattern of
SCY-078 phosphate from Example 1.
[0006] FIG. 2 is a DSC curve and a TGA curve of SCY-078 phosphate
from Example 1.
[0007] FIG. 3 is an XRPD of SCY-078 crystalline freebase (MeOH
desolvate), batch 1 from Example 2.
[0008] FIG. 4 is a DSC curve and a TGA curve of SCY-078 crystalline
freebase (MeOH desolvate), batch 1 from Example 2.
[0009] FIG. 5 is an XRPD of SCY-078 crystalline freebase (MeOH
desolvate), batch 2 from Example 2.
[0010] FIG. 6 is a DSC curve and a TGA curve of SCY-078 amorphous
freebase from Example 3.
[0011] FIG. 7 is an XRPD of SCY-078 HCl Type A from Example 7.
[0012] FIG. 8 is a DSC curve and a TGA curve of SCY-078 HCl Type A
from Example 7.
[0013] FIG. 9 is an XRPD of SCY-078 citrate Type A from Example
8.
[0014] FIG. 10 is a DSC curve and a TGA curve of SCY-078 citrate
Type A from Example 8.
[0015] FIG. 11 is an XRPD of SCY-078 hippurate Type A from Example
9.
[0016] FIG. 12 is a DSC curve and a TGA curve of SCY-078 hippurate
Type A from Example 9.
[0017] FIG. 13 is an XRPD of SCY-078 hippurate Type B from Example
10 overlaid on an XRPD of SCY-078 hippurate Type A from Example
9.
[0018] FIG. 14 is a DSC curve and a TGA curve of SCY-078 hippurate
Type B from Example 10.
[0019] FIG. 15 is an XRPD of SCY-078 hippurate Type C from Example
11 overlaid on the XPRDs of SCY-078 hippurate Type A, hippurate
Type B, and hippurate Type B heated to 175.degree. C.
[0020] FIG. 16 is a cycle DSC curve of SCY-078 hippurate Type B and
SCY-078 hippurate Type C from Example 11.
[0021] FIG. 17 is an XRPD of SCY-078 fumarate Type A from Example
12.
[0022] FIG. 18 is a DSC curve and a TGA curve of SCY-078 fumarate
Type A from Example 12.
[0023] FIG. 19 is an XRPD of SCY-078 fumarate Type B from Example
13.
[0024] FIG. 20 is a DSC curve and a TGA curve of SCY-078 fumarate
Type B from Example 13.
[0025] FIG. 21 is an XRPD of SCY-078 glycolate Type A from Example
14.
[0026] FIG. 22 is a DSC curve and a TGA curve of SCY-078 glycolate
Type A from Example 14.
[0027] FIG. 23 is an XRPD of SCY-078 mesylate Type A from Example
15.
[0028] FIG. 24 is a DSC curve and a TGA curve of SCY-078 mesylate
Type A from Example 15.
[0029] FIG. 25 is an XRPD of SCY-078 calcium Type A from Example
16.
[0030] FIG. 26 is a DSC curve and a TGA curve of SCY-078 calcium
Type A from Example 16.
[0031] FIG. 27 is an XRPD of scaled-up SCY-078 hippurate Type B
from Example 17.
[0032] FIG. 28 is a DSC curve and a TGA curve of scaled-up SCY-078
hippurate Type B from Example 17.
[0033] FIG. 29 is a DVS isotherm plot of scaled-up SCY-078
hippurate Type B from Example 17.
[0034] FIG. 30 is an XRPD of scaled-up SCY-078 hippurate Type B
before DVS, after DVS, and compared to hippurate Type A from
Example 17.
[0035] FIG. 31 is an XRPD of scaled-up SCY-078 fumarate Type A from
Example 18.
[0036] FIG. 32 is a DSC curve and a TGA curve of scaled-up SCY-078
fumarate Type A from Example 18.
[0037] FIG. 33 is a DVS isotherm plot of scaled-up SCY-078 fumarate
Type A from Example 18.
[0038] FIG. 34 is an XRPD of scaled-up SCY-078 mesylate Type A from
Example 19.
[0039] FIG. 35 is a DSC curve and a TGA curve of scaled-up SCY-078
mesylate Type A from Example 19.
[0040] FIG. 36 is a DVS isotherm plot of scaled-up SCY-078 mesylate
Type A from Example 19.
[0041] FIG. 37 is an XRPD of scaled-up SCY-078 phosphate Type A
from Example 20.
[0042] FIG. 38 is a DSC curve and a TGA curve of scaled-up SCY-078
phosphate Type A from Example 20.
[0043] FIG. 39 is a DVS isotherm plot of scaled-up SCY-078
phosphate Type A from Example 20.
[0044] FIG. 40 is an XRPD of scaled-up SCY-078 citrate Type A from
Example 21.
[0045] FIG. 41 is a DSC curve and a TGA curve of scaled-up SCY-078
citrate Type A from Example 21.
[0046] FIG. 42 is a DVS isotherm plot of scaled-up SCY-078 citrate
Type A from Example 21.
[0047] FIG. 43 is an XRPD of scaled-up SCY-078 citrate Type A from
Example 26.
[0048] FIG. 44 is a DSC curve and a TGA curve of scaled-up SCY-078
citrate Type A from Example 26.
[0049] FIG. 45 is an XRPD of SCY-078 citrate Type A from Example
38.
[0050] FIG. 46 is a DSC curve and a TGA curve of SCY-078 citrate
Type A from Example 38.
[0051] FIG. 47 is a DVS isotherm plot of SCY-078 citrate Type A
from Example 38.
[0052] FIG. 48 is an XRPD of SCY-078 citrate Type A after process
development from Example 38.
[0053] FIG. 49 is a DSC curve and a TGA curve of SCY-078 citrate
Type A after process development from Example 38.
[0054] FIG. 50 is a DVS isotherm plot of SCY-078 citrate Type A
after process development from Example 38.
[0055] FIG. 51 is an XRPD of SCY-078 citrate Type B from Example
39.
[0056] FIG. 52 is a DSC curve and a TGA curve of SCY-078 citrate
Type B from Example 39.
[0057] FIG. 53 is an XRPD of SCY-078 citrate Type E from Example
40.
[0058] FIG. 54 is an XRPD of SCY-078 citrate Type E from Example 40
before and after storage.
[0059] FIG. 55 is an XRPD of SCY-078 citrate Type F from Example
41.
[0060] FIG. 56 is a DSC curve and a TGA curve of SCY-078 citrate
Type F from Example 41.
[0061] FIG. 57 is an XRPD of SCY-078 citrate Type M from Example
42.
[0062] FIG. 58 is a DSC curve and a TGA curve of SCY-078 citrate
Type M from Example 42.
[0063] FIG. 59 is a DVS isotherm plot of SCY-078 citrate Type M
from Example 42.
[0064] FIG. 60 is an XRPD of SCY-078 citrate Type M from Example 42
at variable temperatures.
[0065] FIG. 61 is an XRPD of SCY-078 citrate Type N from Example
43.
[0066] FIG. 62 is an XRPD of SCY-078 citrate Type N from Example 43
before and after drying.
[0067] FIG. 63 is an XRPD of SCY-078 citrate Type O from Example
44.
[0068] FIG. 64 is an XRPD of SCY-078 citrate Type Q from Example
45.
[0069] FIG. 65 is an XRPD of SCY-078 citrate Type Q from Example 45
before and after drying.
[0070] FIG. 66 is an XRPD of SCY-078 citrate Type R from Example
46.
[0071] FIG. 67 is an XRPD of SCY-078 citrate Type R from Example 46
before and after drying.
[0072] FIG. 68 is an XRPD of SCY-078 citrate Type S from Example
47.
[0073] FIG. 69 is a DSC curve and a TGA curve of SCY-078 citrate
Type S from Example 47.
[0074] FIG. 70 is a DVS isotherm plot of SCY-078 citrate Type S
from Example 47.
[0075] FIG. 71 is an XRPD of SCY-078 citrate Type S from Example 47
at variable temperatures.
[0076] FIG. 72 shows XRPD patterns of SCY-078 citrate Types C, I,
J, and P from Example 48.
[0077] FIG. 73 shows XRPD patterns of slurry conversion of SCY-078
citrate Type A or Type B to Type N from Example 50.
[0078] FIG. 74 shows XRPD patterns of SCY-078 citrate Type Q after
drying from Example 50.
[0079] FIG. 75 shows XRPD patterns of SCY-078 citrate Types R, E,
and M from Example 51.
[0080] FIG. 76 shows XRPD patterns of SCY-078 citrate Type M slurry
in acetone from Example 51.
[0081] FIG. 77 shows XRPD patterns of SCY-078 citrate Type M slurry
in acetonitrile from Example 51.
[0082] FIG. 78 shows XRPD patterns of SCY-078 citrate Type M slurry
in MeOH/IPAc from Example 51.
[0083] FIG. 79 shows XRPD patterns of SCY-078 citrate Type M slurry
in heptane from Example 51.
[0084] FIG. 80 shows XRPD patterns of SCY-078 citrate Type M after
stability testing from Example 52.
[0085] FIG. 81 shows XRPD patterns of SCY-078 citrate Type S after
stability testing from Example 52.
[0086] FIG. 82 is an XRPD of SCY-078 citrate Type A from Example
53.
[0087] FIG. 83 is a DSC curve and a TGA curve of SCY-078 citrate
Type A from Example 53.
[0088] FIG. 84 is a DSC curve and a TGA curve of SCY-078 citrate
Type A from Example 53.
[0089] FIG. 85 is an XRPD of SCY-078 Trifluoroacetate Type A from
Example 54.
[0090] FIG. 86 is a DSC curve and a TGA curve of SCY-078
Trifluoroacetate Type A from Example 54.
[0091] FIG. 87 is an XRPD of SCY-078 Trifluoroacetate Type A before
and after storage from Example 54.
[0092] FIG. 88 is an XRPD of SCY-078 Trifluoroacetate Type B from
Example 55.
[0093] FIG. 89 is a DSC curve and a TGA curve of SCY-078
Trifluoroacetate Type B from Example 55.
[0094] FIG. 90 is a DVS curve of SCY-078 Trifluoroacetate Type B
from Example 55.
[0095] FIG. 91 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B before and after DVS from Example 55.
[0096] FIG. 92 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B at varying relative humidity from Example 55.
[0097] FIG. 93 is a VT-XRPD overlay of SCY-078 Trifluoroacetate
Type A from Example 55.
[0098] FIG. 94 is an XRPD of SCY-078 HCl Type I from Example
56.
[0099] FIG. 95 is a DSC curve and a TGA curves of SCY-078 HCl Type
I from Example 56.
[0100] FIG. 96 is a DVS curve of SCY-078 HCl Type I from Example
56.
[0101] FIG. 97 is an XRPD overlay of SCY-078 HCl Type I before and
after DVS from Example 56.
[0102] FIG. 98 is an XRPD of SCY-078 HCl Type II from Example
57.
[0103] FIG. 99 is a DSC curve and TGA curve of SCY-078 HCl Type II
from Example 57.
[0104] FIG. 100 shows the kinetic solubility curves of SCY-078
Trifluoroacetate Types A and B and SCY-078 HCl Type I in SGF from
Example 58.
[0105] FIG. 101 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A in SGF from Example 58.
[0106] FIG. 102 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B in SGF from Example 58.
[0107] FIG. 103 is an XRPD overlay of SCY-078 HCl Type I in SGF
from Example 58.
[0108] FIG. 104 shows the kinetic solubility curves of SCY-078
Trifluoroacetate Types A and B and SCY-078 HCl Type I from Example
59.
[0109] FIG. 105 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A from Example 59.
[0110] FIG. 106 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B from Example 59.
[0111] FIG. 107 is an XRPD overlay of SCY-078 HCl Type I from
Example 59.
[0112] FIG. 108 shows the kinetic solubility curves of SCY-078
Trifluoroacetate Types A and B and SCY-078 HCl Type I from Example
60.
[0113] FIG. 109 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A from Example 60.
[0114] FIG. 110 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B from Example 60.
[0115] FIG. 111 is an XRPD overlay of SCY-078 HCl Type I from
Example 60.
[0116] FIG. 112 shows the kinetic solubility curves of SCY-078
Trifluoroacetate Types A and B and SCY-078 HCl Type I from Example
61.
[0117] FIG. 113 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A from Example 61.
[0118] FIG. 114 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B from Example 61.
[0119] FIG. 115 is an XRPD overlay of SCY-078 HCl Type I from
Example 61.
[0120] FIG. 116 shows the kinetic solubility curves of SCY-078
Trifluoroacetate Types A and B and SCY-078 HCl Type I from Example
62.
[0121] FIG. 117 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A from Example 62.
[0122] FIG. 118 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B from Example 62.
[0123] FIG. 119 is an XRPD overlay of SCY-078 HCl Type I from
Example 62.
[0124] FIG. 120 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A under 25.degree. C./60% RH from Example 63.
[0125] FIG. 121 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A under 40.degree. C./75% RH from Example 63.
[0126] FIG. 122 is an XRPD overlay of SCY-078 Trifluoroacetate Type
A under 60.degree. C. from Example 63.
[0127] FIG. 123 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B under 25.degree. C./60% RH from Example 63.
[0128] FIG. 124 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B under 40.degree. C./75% RH from Example 63.
[0129] FIG. 125 is an XRPD overlay of SCY-078 Trifluoroacetate Type
B under 60.degree. C. from Example 63.
[0130] FIG. 126 is an XRPD overlay of SCY-078 HCl Type I under
25.degree. C./60% RH from Example 63.
[0131] FIG. 127 is an XRPD overlay of SCY-078 HCl Type I under
40.degree. C./75% RH from Example 63.
[0132] FIG. 128 is an XRPD overlay of SCY-078 HCl Type I under
60.degree. C. from Example 63.
DETAILED DESCRIPTION
[0133] All numbers used herein, including those in the examples and
claims, should be understood as being modified by the term "about"
unless otherwise stated, such as with a specified precision. Unless
expressly stated to the contrary, all ranges cited herein are
inclusive.
[0134] As used herein, the singular forms "a," "an," and "the"
include plural reference unless the context dictates otherwise.
[0135] The terms "SCY-078" and "compound 1" refer to the compound
shown below, and refer to the freebase form unless otherwise
indicated. Another name for SCY-078 is
(1S,4aR,6aS,7R,8R,10aR,10bR,12aR,14R,15R)-15-[[(2R)-2-amino-2,3,3-trimeth-
ylbutyl]oxy]-8-[(1R)-1,2-dimethylpropyl]-14-[5-(4-pyridinyl)-1H-1,2,4-tria-
zol-1-yl]-1,6,6a,7,8,9,10,10a,10b,11,12,12a-dodecahydro-1,6a,8,10a-tetrame-
thyl-4H-4a-propano-2H-phenanthro[1,2-c]pyran-7-carboxylic acid.
##STR00002##
[0136] The term "HCl" refers to hydrochloric acid. The term "Ca"
refers to calcium.
[0137] The terms "pharmaceutically acceptable salt" and the like
should be understood to include, but not limited to, citrate salts,
hippurate salts, fumarate salts, glycolate salts, mesylate salts,
and calcium salts.
[0138] As used here, phrases such as "SCY-078 salt," "SCY-078
salts," "salt of SCY-078," "salts of SCY-078," "pharmaceutically
acceptable salt of SCY-078," and "pharmaceutically acceptable salts
thereof" should be understood to be salts in various forms, for
example, the polymorphs disclosed herein. In addition, as used
here, phrases such as "SCY-078 phosphate," "SCY-078 citrate,"
"SCY-078 hippurate," "SCY-078 glycolate," "SCY-078 mesylate,"
"SCY-078 fumarate," and "SCY-078 calcium" should be understood to
be salts in various forms, for example, the polymorphs disclosed
herein.
[0139] The term "solvent" and the like refer to any appropriate
aqueous or organic solvent. Solvents include, but are not limited
to, methanol, acetic acid, tetrahydrofuran, 2
methyl-tetrahydrofuran, 1,4-dioxane, n-methyl-2-pyrrolidone,
dimethyl sulfoxide, dimethylacetamide, isopropyl alcohol,
acetonitrile, acetone, ethyl acetate, water and mixtures
thereof.
[0140] The term "pharmaceutically acceptable carrier" and the like
refer to an ingredient that is compatible with SCY-078 and is not
harmful to a patient's health. Pharmaceutically acceptable carriers
include, but are not limited to, one or more of the following:
aqueous vehicles and solvents, such as water, saline solutions, and
alcohols; buffers; surface active agents; dispersing agents; inert
diluents; preservatives; suspending agents; emulsifying agents;
demulcents; thickening agents; emulsifying agents; antioxidants;
and stabilizing agents. Other additional ingredients that may be
included in the pharmaceutical compositions of the disclosure are
generally known in the art and may be described, for example, in
Remington's Pharmaceutical Sciences, Mack Publishing Co., Easton,
Pa., which is incorporated by reference herein.
[0141] The term "injection" and the like refer to the insertion of
a composition into the body by syringe, hollow needle, or the like.
The term "injection" and the like include, but are not limited to,
intravenous injections, including those entailing administering
using an IV bag containing a diluent.
[0142] The term "effective amount" refers to an amount of the
active ingredient that, when administered to a subject, alleviates
at least some of the symptoms or stops the progression of the
identified disease or condition. The terms "disease" or "condition"
include, but are not limited to, infections such as fungal
infections. Exemplary dosage amounts can be found, for example, in
U.S. Pat. No. 8,188,085, the relevant portions of which are
incorporated herein by reference.
[0143] The term "A" refers to angstroms. Terms such as "28" or "2
Th." refer to degrees 2 theta.
[0144] The XRPD peaks recited herein should be understood to
reflect a precision of .+-.0.2 for the 2 theta peaks, and the
equivalent precision for d-spacings as per Bragg's law. The present
disclosure also fully incorporates section 941 of the United States
Pharmacopeia. The National Formulary from 2014 (USP 37/NF 32,
volume 1) relating to characterization of crystalline and partially
crystalline solids by X-ray Powder Diffraction.
[0145] The present disclosure relates to, among other things,
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, glycolate, mesylate, fumarate,
and calcium. In one embodiment, the salt is selected from citrate,
hippurate, mesylate, and fumarate. In a further embodiment, the
SCY-078 salt is selected from SCY-078 hippurate Type A, SCY-078
hippurate Type B, and SCY-078 hippurate Type C. In another
embodiment, the SCY-078 salt is selected from SCY-078 fumarate Type
A and SCY-078 fumarate Type B. In yet another embodiment, the salt
is a SCY-078 citrate salt. In yet a further embodiment, the salt is
SCY-078 citrate Type A.
[0146] The present disclosure further relates to pharmaceutically
acceptable salts of SCY-078 that have a chemical purity of at least
90%. In another embodiment, pharmaceutically acceptable salts of
SCY-078 have a chemical purity of at least 95%. In a further
embodiment, pharmaceutically acceptable salts of SCY-078 have a
chemical purity of at least 98%. In yet another embodiment,
pharmaceutically acceptable salts of SCY-078 have a chemical purity
of at least 99%. In still another embodiment, the present
disclosure relates to pharmaceutically acceptable salts of SCY-078,
wherein the salt is selected from citrate, hippurate, mesylate, and
fumarate, and wherein the salt has a chemical purity of at least
90%, at least 95%, at least 98%, or at least 99%.
[0147] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 that have a kinetic
solubility of at least 2 mg/mL at 4 hours in dextrose buffer at pH
5.5. In one embodiment, the pharmaceutically acceptable salts of
SCY-078 have a kinetic solubility of at least 4 mg/mL at 4 hours in
dextrose buffer at pH 5.5. In another embodiment, the
pharmaceutically acceptable salts of SCY-078 have a kinetic
solubility of from 2 mg/mL to 5 mg/mL at 4 hours in dextrose buffer
at pH 5.5. In yet another embodiment, the pharmaceutically
acceptable salts of SCY-078 have a kinetic solubility of from 4
mg/mL to 5 mg/mL at 4 hours in dextrose buffer at pH 5.5. In still
another embodiment, the pharmaceutically acceptable salts of
SCY-078 have a kinetic solubility greater than SCY-078 (as a
freebase) at 4 hours in dextrose buffer at pH 5.5.
[0148] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 that have a kinetic
solubility of at least 2 mg/mL at 24 hours in dextrose buffer at pH
5.5. In one embodiment, the pharmaceutically acceptable salts of
SCY-078 have a kinetic solubility of at least 4 mg/mL at 24 hours
in dextrose buffer at pH 5.5. In another embodiment, the
pharmaceutically acceptable salts of SCY-078 have a kinetic
solubility of at least 8 mg/mL at 24 hours in dextrose buffer at pH
5.5. In a further embodiment, the pharmaceutically acceptable salts
of SCY-078 have a kinetic solubility of from 2 mg/mL to 9 mg/mL at
24 hours in dextrose buffer at pH 5.5. In yet another embodiment,
the pharmaceutically acceptable salts of SCY-078 have a kinetic
solubility of from 4 mg/mL to 9 mg/mL at 24 hours in dextrose
buffer at pH 5.5. In still another embodiment, the pharmaceutically
acceptable salts of SCY-078 have a kinetic solubility of from 8
mg/mL to 9 mg/mL at 24 hours in dextrose buffer at pH 5.5.
[0149] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a kinetic solubility of from 2 mg/mL to 5
mg/mL at 4 hours in dextrose buffer at pH 5.5. In one embodiment,
the disclosure relates to pharmaceutically acceptable salts of
SCY-078, wherein the salt is selected from citrate, hippurate,
mesylate, and fumarate, and wherein the salt has a kinetic
solubility of from 4 mg/mL to 5 mg/mL at 4 hours in dextrose buffer
at pH 5.5.
[0150] In yet another embodiment, the disclosure relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a kinetic solubility of from 2 mg/mL to 9
mg/mL at 24 hours in dextrose buffer at pH 5.5. In still another
embodiment, the disclosure also relates to pharmaceutically
acceptable salts of SCY-078, wherein the salt is selected from
citrate, hippurate, mesylate, and fumarate, and wherein the salt
has a kinetic solubility of from 4 mg/mL to 9 mg/mL at 24 hours in
dextrose buffer at pH 5.5. In another embodiment, the disclosure
relates to pharmaceutically acceptable salts of SCY-078, wherein
the salt is selected from citrate, hippurate, mesylate, and
fumarate, and wherein the salt has a kinetic solubility of from 8
mg/mL to 9 mg/mL at 24 hours in dextrose buffer at pH 5.5.
[0151] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 that have a kinetic
solubility of at least 2 mg/mL at 4 hours in phosphate buffer at pH
6.0. In one embodiment, the pharmaceutically acceptable salts of
SCY-078 have a kinetic solubility of at least 4 mg/mL at 4 hours in
phosphate buffer at pH 6.0. In another embodiment, the
pharmaceutically acceptable salts of SCY-078 have a kinetic
solubility of from 2 mg/mL to 5 mg/mL at 4 hours in phosphate
buffer at pH 6.0. In yet another embodiment, the pharmaceutically
acceptable salts of SCY-078 have a kinetic solubility of from 4
mg/mL to 5 mg/mL at 4 hours in phosphate buffer at pH 6.0.
[0152] In still another embodiment, the pharmaceutically acceptable
salts of SCY-078 have a kinetic solubility of at least 4.5 mg/mL at
24 hours in phosphate buffer at pH 6.0. In one embodiment, the
pharmaceutically acceptable salts of SCY-078 have a kinetic
solubility of at least 7 mg/mL at 24 hours in phosphate buffer at
pH 6.0. In another embodiment, the pharmaceutically acceptable
salts of SCY-078 have a kinetic solubility of from 4.5 mg/mL to 8
mg/mL at 24 hours in phosphate buffer at pH 6.0. In yet another
embodiment, the pharmaceutically acceptable salts of SCY-078 have a
kinetic solubility of from 7 mg/mL to 8 mg/mL at 24 hours in
phosphate buffer at pH 6.0.
[0153] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a kinetic solubility of from 1 mg/mL to 5
mg/mL at 4 hours in phosphate buffer at pH 6.0. In one embodiment,
the disclosure relates to pharmaceutically acceptable salts of
SCY-078, wherein the salt is selected from citrate, hippurate,
mesylate, and fumarate, and wherein the salt has a kinetic
solubility of from 4 mg/mL to 5 mg/mL at 4 hours in phosphate
buffer at pH 6.0.
[0154] In another embodiment, the disclosure relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a kinetic solubility of from 4 mg/mL to 8
mg/mL at 24 hours in phosphate buffer at pH 6.0. In yet another
embodiment, the disclosure relates to pharmaceutically acceptable
salts of SCY-078, wherein the salt is selected from citrate,
hippurate, mesylate, and fumarate, and wherein the salt has a
kinetic solubility of from 7 mg/mL to 8 mg/mL at 24 hours in
phosphate buffer at pH 6.0.
[0155] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 that have a kinetic
solubility of at least 16 mg/mL at 1 hour in SGF media. In one
embodiment, the pharmaceutically acceptable salts of SCY-078 have a
kinetic solubility of at least 17 mg/mL at 1 hour in SGF media. In
another embodiment, the pharmaceutically acceptable salts of
SCY-078 have a kinetic solubility of at least 18 mg/mL at 1 hour in
SGF media. In yet another embodiment, the pharmaceutically
acceptable salts of SCY-078 have a kinetic solubility of at least
20 mg/mL at 1 hour in SGF media.
[0156] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 that have a kinetic
solubility of from 17 mg/mL to 21 mg/mL at 1 hour in SGF media. In
another embodiment, the pharmaceutically acceptable salts of
SCY-078 have a kinetic solubility of from 18 mg/mL to 21 mg/mL at 1
hour in SGF media. In yet another embodiment, the pharmaceutically
acceptable salts of SCY-078 have a kinetic solubility of from 20
mg/mL to 21 mg/mL at 1 hour in SGF media.
[0157] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a kinetic solubility of from 12 mg/mL to 21
mg/mL at 1 hour in SGF media. In one embodiment, the disclosure
relates to pharmaceutically acceptable salts of SCY-078, wherein
the salt is selected from citrate, hippurate, mesylate, and
fumarate, and wherein the salt has a kinetic solubility of from 13
mg/mL to 21 mg/mL at 1 hour in SGF media. In another embodiment,
the disclosure relates to pharmaceutically acceptable salts of
SCY-078, wherein the salt is selected from citrate, hippurate,
mesylate, and fumarate, and wherein the salt has a kinetic
solubility of from 18 mg/mL to 21 mg/mL at 1 hour in SGF media. In
yet another embodiment, the disclosure relates to pharmaceutically
acceptable salts of SCY-078, wherein the salt is selected from
citrate, hippurate, mesylate, and fumarate, and wherein the salt
has a kinetic solubility of from 20 mg/mL to 21 mg/mL at 1 hour in
SGF media.
[0158] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 that have a kinetic
solubility of at least 17 mg/mL at 24 hours in FaSSIF media. In one
embodiment, the pharmaceutically acceptable salts of SCY-078 have a
kinetic solubility of at least 22 mg/mL at 24 hours in FaSSIF
media. In another embodiment, the pharmaceutically acceptable salts
of SCY-078 have a kinetic solubility of from 17 mg/mL to 22 mg/mL
at 24 hours in FaSSIF media. In yet another embodiment, the
pharmaceutically acceptable salts of SCY-078 have a kinetic
solubility of from 21 mg/mL to 22 mg/mL at 24 hours in FaSSIF
media.
[0159] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a kinetic solubility of from 17 mg/mL to 22
mg/mL at 24 hours in FaSSIF media. In one embodiment, the
disclosure relates to pharmaceutically acceptable salts of SCY-078,
wherein the salt is selected from citrate, hippurate, mesylate, and
fumarate, and wherein the salt has a kinetic solubility of from 21
mg/mL to 22 mg/mL at 24 hours in FaSSIF media.
[0160] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078 having any of the
disclosed kinetic solubilities and having a water sorption of not
greater than 7% at 25.degree. C. and 80% relative humidity as
determined by DVS. In one embodiment, the pharmaceutically
acceptable salts of SCY-078 have a water sorption of from 2% to 7%
at 25.degree. C. and 80% relative humidity as determined by DVS. In
another embodiment, the pharmaceutically acceptable salts of
SCY-078 have a water sorption of from 3% to 7% at 25.degree. C. and
80% relative humidity as determined by DVS. In yet another
embodiment, the pharmaceutically acceptable salts of SCY-078 have a
water sorption of from 6% to 7% at 25.degree. C. and 80% relative
humidity as determined by DVS.
[0161] The present disclosure additionally relates to
pharmaceutically acceptable salts of SCY-078, wherein the salt is
selected from citrate, hippurate, mesylate, and fumarate, and
wherein the salt has a water sorption of from 2% to 7% at
25.degree. C. and 80% relative humidity as determined by DVS. In
one embodiment, the disclosure relates to pharmaceutically
acceptable salts of SCY-078, wherein the salt is selected from
citrate, hippurate, mesylate, and fumarate, and wherein the salt
has a water sorption of from 3% to 7% at 25.degree. C. and 80%
relative humidity as determined by DVS. In one embodiment, the
disclosure relates to pharmaceutically acceptable salts of SCY-078,
wherein the salt is selected from citrate, hippurate, mesylate, and
fumarate, and wherein the salt has a water sorption of from 6% to
7% at 25.degree. C. and 80% relative humidity as determined by
DVS.
[0162] The present disclosure further relates to hippurate salts of
SCY-078, such as SCY-078 hippurate Type A, SCY-078 hippurate Type
B, and SCY-078 hippurate Type C. In one embodiment, the SCY-078
hippurate Type A has an XRPD pattern comprising peaks at one or
more of the following locations:
TABLE-US-00001 TABLE A Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 6.276484 353.472400
0.102336 14.08226 12.90 7.023845 139.782300 0.307008 12.58545 5.10
7.900725 1475.766000 0.127920 11.19048 53.85 8.241444 302.522300
0.102336 10.72859 11.04 9.723080 945.921800 0.089544 9.09681 34.52
11.283030 414.659200 0.102336 7.84238 15.13 11.492390 300.886600
0.076752 7.69998 10.98 12.610210 2740.558000 0.089544 7.01982
100.00 12.910370 765.158500 0.063960 6.85728 27.92 13.561180
243.791900 0.153504 6.52963 8.90 14.149930 371.812900 0.102336
6.25924 13.57 15.182550 1607.490000 0.102336 5.83577 58.66
15.806230 690.955800 0.179088 5.60688 25.21 16.673670 482.323700
0.179088 5.31709 17.60 17.068480 365.833300 0.127920 5.19498 13.35
18.200570 206.779900 0.153504 4.87432 7.55 18.933070 395.979900
0.153504 4.68736 14.45 19.293830 277.037400 0.102336 4.60052 10.11
19.924160 251.428800 0.204672 4.45638 9.17 20.583290 158.800000
0.204672 4.31514 5.79 21.951230 220.614300 0.153504 4.04923 8.05
23.477450 72.922780 0.409344 3.78934 2.66 24.511240 99.987140
0.255840 3.63181 3.65 24.954920 117.325600 0.153504 3.56824 4.28
25.993010 108.058000 0.204672 3.42804 3.94 28.257860 72.489400
0.409344 3.15822 2.65 31.063590 95.037750 0.179088 2.87907 3.47
31.653730 62.090590 0.307008 2.82673 2.27
For example, the SCY-078 hippurate Type A has an XRPD pattern
comprising one or more peaks at d-spacings of 11.20, 7.02, and 5.84
.ANG.. In another example, the SCY-078 hippurate Type A has an XRPD
pattern comprising one or more peaks at degrees 2 theta of 7.90,
12.6, and 15.18.
[0163] In one embodiment, the SCY-078 hippurate Type B has an XRPD
pattern comprising peaks at one or more of the following
locations:
TABLE-US-00002 TABLE B Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.887601 118.925500
0.102336 15.01151 9.56 6.889384 462.675400 0.063960 12.83077 37.19
7.277837 251.176000 0.051168 12.14678 20.19 8.767134 927.066800
0.076752 10.08643 74.52 9.945603 1143.995000 0.102336 8.89377 91.96
10.843500 681.448200 0.102336 8.15925 54.78 11.822440 140.502200
0.127920 7.48575 11.29 12.417990 1244.014000 0.089544 7.12805
100.00 13.714490 435.466500 0.089544 6.45698 35.00 14.608760
1242.496000 0.102336 6.06367 99.88 15.050420 474.015800 0.102336
5.88670 38.10 16.071560 476.890000 0.127920 5.51491 38.33 16.476910
708.831400 0.102336 5.38014 56.98 16.857150 185.689200 0.102336
5.25963 14.93 17.289970 422.781900 0.127920 5.12893 33.99 17.612420
996.474200 0.089544 5.03575 80.10 18.405510 186.288500 0.153504
4.82051 14.97 19.118560 303.851800 0.127920 4.64230 24.43 19.623870
158.474700 0.153504 4.52389 12.74 20.218430 314.377200 0.153504
4.39218 25.27 21.746130 200.050600 0.153504 4.08695 16.08 23.075880
129.668200 0.204672 3.85436 10.42 23.853540 106.856400 0.204672
3.73044 8.59 25.372290 96.670350 0.204672 3.51048 7.77 29.216870
66.396300 0.230256 3.05670 5.34 32.714200 31.053470 0.614016
2.73748 2.50
For example, the SCY-078 hippurate Type B has an XRPD pattern
comprising one or more peaks at d-spacings of 8.90, 7.13, and 6.10
.ANG.. In another example, the SCY-078 hippurate Type B has an XRPD
pattern comprising one or more peaks at degrees 2 theta of 9.95,
12.42, and 14.61.
[0164] In one embodiment, the SCY-078 hippurate Type C has an XRPD
pattern comprising peaks at one or more of the following
locations:
TABLE-US-00003 TABLE C Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.027072
11818.150000 0.051168 29.18766 100.00 5.916137 351.270000 0.102336
14.93916 2.97 6.916698 947.910600 0.102336 12.78016 8.02 7.251646
624.847700 0.076752 12.19059 5.29 8.761702 1828.733000 0.076752
10.09268 15.47 9.962105 2404.236000 0.102336 8.87907 20.34
10.897800 1593.408000 0.102336 8.11872 13.48 11.868550 552.254500
0.102336 7.45677 4.67 12.432300 2880.441000 0.127920 7.11988 24.37
12.857840 525.634600 0.076752 6.88518 4.45 13.091360 511.764400
0.115128 6.76288 4.33 13.709840 1112.219000 0.102336 6.45916 9.41
14.555290 3086.294000 0.153504 6.08582 26.11 14.984610 1215.693000
0.102336 5.91241 10.29 15.341160 506.870800 0.153504 5.77579 4.29
16.136210 1315.742000 0.089544 5.49296 11.13 16.453540 1710.358000
0.153504 5.38772 14.47 16.897030 606.324900 0.102336 5.24730 5.13
17.280760 1171.798000 0.127920 5.13164 9.92 17.591700 2258.867000
0.102336 5.04163 19.11 18.190770 538.754800 0.127920 4.87692 4.56
18.425670 516.831300 0.179088 4.81528 4.37 19.151570 950.084500
0.102336 4.63437 8.04 19.602330 487.956400 0.127920 4.52881 4.13
20.234760 861.917600 0.153504 4.38867 7.29 20.860030 424.598600
0.153504 4.25851 3.59 21.725360 459.496200 0.307008 4.09081 3.89
22.532320 498.240700 0.102336 3.94610 4.22 23.078810 380.947900
0.127920 3.85388 3.22 23.551950 208.488500 0.409344 3.77752 1.76
23.874020 377.598600 0.102336 3.72728 3.20 25.381750 351.553600
0.102336 3.50919 2.97 25.844490 207.070300 0.204672 3.44740 1.75
27.188450 192.463400 0.153504 3.27997 1.63 27.681830 144.369000
0.307008 3.22262 1.22 29.319670 172.870900 0.511680 3.04622 1.46
30.833510 86.432220 0.307008 2.90002 0.73 34.979000 90.330020
0.204672 2.56525 0.76 35.588330 69.479680 0.307008 2.52271 0.59
37.270360 55.666410 0.307008 2.41264 0.47
For example, the SCY-078 hippurate Type C has an XRPD pattern
comprising one or more peaks at d-spacings of 29.19, 8.88, 7.12,
and 6.09 .ANG.. In another example, the SCY-078 hippurate Type C
has an XRPD pattern comprising one or more peaks at degrees 2 theta
of 3.03, 9.96, 12.43, and 14.56.
[0165] The present disclosure further relates to fumarate salts of
SCY-078, such as SCY-078 fumarate Type A and SCY-078 fumarate Type
B. In one embodiment, the SCY-078 fumarate Type A has an XRPD
pattern comprising peaks at one or more of the following
locations:
TABLE-US-00004 TABLE D Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 7.747007 167.350400
0.153504 11.41218 2.00 8.493147 8373.572000 0.102336 10.41119
100.00 9.346397 181.715800 0.204672 9.46257 2.17 9.931064
167.355100 0.153504 8.90676 2.00 10.442940 371.960600 0.089544
8.47130 4.44 10.706620 463.482500 0.076752 8.26326 5.54 11.231160
490.618200 0.153504 7.87848 5.86 13.030860 311.426800 0.102336
6.79415 3.72 13.700070 569.254300 0.102336 6.46374 6.80 14.895760
234.024600 0.153504 5.94748 2.79 15.204970 269.752200 0.153504
5.82722 3.22 16.350790 434.953000 0.127920 5.42135 5.19 16.976580
3015.489000 0.115128 5.22289 36.01 17.726110 1152.135000 0.230256
5.00370 13.76 18.205910 303.920500 0.102336 4.87290 3.63 18.863510
267.939100 0.153504 4.70449 3.20 20.164360 63.804870 0.409344
4.40383 0.76 20.898390 184.877000 0.102336 4.25078 2.21 21.419940
168.417300 0.102336 4.14844 2.01 22.228150 318.867400 0.127920
3.99940 3.81 23.936960 77.330220 0.307008 3.71763 0.92 25.533030
318.681700 0.089544 3.48874 3.81 26.114530 59.303240 0.204672
3.41236 0.71 26.883130 111.136200 0.204672 3.31652 1.33 30.876670
38.684340 0.614016 2.89607 0.46
For example, the SCY-078 fumarate Type A has an XRPD pattern
comprising one or more peaks at d-spacings of 10.41, 5.22, and 5.00
.ANG.. In another example, the SCY-078 fumarate Type A has an XRPD
pattern comprising one or more peaks at degrees 2 theta of 8.49,
16.98, and 17.73.
[0166] In one embodiment, the SCY-078 fumarate Type B has an XRPD
pattern comprising peaks at one or more of the following
locations:
TABLE-US-00005 TABLE E Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.449312 94.567020
0.307008 16.21786 19.92 6.318422 110.456500 0.409344 13.98888 23.26
9.799620 153.670200 0.614016 9.02593 32.36 10.577440 403.264100
0.255840 8.36388 84.93 10.995710 322.682700 0.089544 8.04665 67.96
11.970210 133.555200 0.307008 7.39367 28.13 13.136230 472.855300
0.102336 6.73989 99.58 13.551710 408.076200 0.102336 6.53417 85.94
14.201760 320.510900 0.204672 6.23651 67.50 15.712210 472.732700
0.076752 5.64022 99.56 16.216750 474.828900 0.076752 5.46586 100.00
16.849640 211.687300 0.204672 5.26195 44.58 20.391740 103.586500
0.358176 4.35524 21.82 21.343910 97.997770 0.409344 4.16305 20.64
28.564840 34.739620 0.614016 3.12498 7.32
For example, the SCY-078 fumarate Type B has an XRPD pattern
comprising one or more peaks at d-spacings of 8.36, 6.74, 6.53,
5.64, and 5.47 .ANG.. In another example, the SCY-078 fumarate Type
B has an XRPD pattern comprising one or more peaks at degrees 2
theta of 10.58, 13.14, 13.55, 15.71, and 16.22.
[0167] The present disclosure further relates to glycolate salts of
SCY-078. In one embodiment, the SCY-078 glycolate has an XRPD
pattern comprising peaks at one or more of the following
locations:
TABLE-US-00006 TABLE F Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 7.879599 291.814000
0.127920 11.22044 54.74 8.983378 233.086200 0.204672 9.84412 43.72
9.855934 117.677600 0.153504 8.97448 22.07 11.483230 269.580500
0.204672 7.70610 50.56 12.311460 163.106800 0.358176 7.18949 30.59
14.259570 285.813400 0.179088 6.21136 53.61 14.651000 437.366100
0.102336 6.04628 82.04 15.433320 533.138100 0.102336 5.74151 100.00
16.892280 103.441500 0.614016 5.24877 19.40 18.826490 177.863500
0.204672 4.71365 33.36 20.401140 101.236100 0.307008 4.35325 18.99
21.743970 54.436950 0.614016 4.08735 10.21 24.981860 29.298130
0.614016 3.56445 5.50
For example, the SCY-078 glycolate has an XRPD pattern comprising
one or more peaks at d-spacings of 11.22, 6.21, 6.05, and 5.74
.ANG.. In another example, the SCY-078 glycolate has an XRPD
pattern comprising one or more peaks at degrees 2 theta of 7.88,
14.26, 14.65, and 15.43.
[0168] The present disclosure further relates to mesylate salts of
SCY-078. In one embodiment, the SCY-078 mesylate has an XRPD
pattern comprising peaks at one or more of the following
locations:
TABLE-US-00007 TABLE G Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.321569 44.016770
0.307008 16.60688 3.75 6.654286 233.467600 0.076752 13.28355 19.89
8.041747 243.835400 0.204672 10.99455 20.77 9.224843 236.712900
0.153504 9.58698 20.16 10.179890 547.128100 0.089544 8.68960 46.60
10.532080 592.551800 0.089544 8.39980 50.47 11.692820 225.932500
0.409344 7.56843 19.24 12.670270 361.926000 0.102336 6.98668 30.83
14.316750 537.652200 0.102336 6.18668 45.80 14.751260 1174.011000
0.102336 6.00541 100.00 15.645660 347.928600 0.204672 5.66406 29.64
16.537910 485.586600 0.179088 5.36043 41.36 17.477180 328.731900
0.127920 5.07441 28.00 18.838670 252.134300 0.307008 4.71063 21.48
19.613670 351.448500 0.153504 4.52622 29.94 21.008230 254.102200
0.204672 4.22880 21.64 22.068870 130.646600 0.307008 4.02791 11.13
23.475460 151.601600 0.204672 3.78965 12.91 25.592960 130.952000
0.153504 3.48071 11.15
For example, the SCY-078 mesylate has an XRPD pattern comprising
one or more peaks at d-spacings of 10.99, 6.99, and 6.01 .ANG.. In
another example, the SCY-078 mesylate has an XRPD pattern
comprising one or more peaks at degrees 2 theta of 8.04, 12.67, and
14.75.
[0169] The present disclosure further relates to calcium salts of
SCY-078. In one embodiment, the SCY-078 Calcium has an XRPD pattern
comprising peaks at one or more of the following locations:
TABLE-US-00008 TABLE H Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.330948
1222.647000 0.063960 16.57768 100.00 8.684942 82.143680 0.307008
10.18170 6.72 9.624508 215.229600 0.127920 9.18975 17.60 10.625810
286.722000 0.153504 8.32591 23.45 13.358050 110.336200 0.307008
6.62846 9.02 14.092620 101.325400 0.307008 6.28456 8.29 15.952080
1188.492000 0.153504 5.55594 97.21 16.282720 334.685300 0.153504
5.44386 27.37 17.853110 104.842700 0.153504 4.96839 8.58 19.638160
74.407610 0.307008 4.52063 6.09 29.434800 171.668200 0.204672
3.03457 14.04 30.178030 59.353870 0.153504 2.96150 4.85 31.428330
37.765730 0.307008 2.84648 3.09
For example, the SCY-078 calcium has an XRPD pattern comprising one
or more peaks at d-spacings of 16.58, 5.56, and 5.44 .ANG.. In
another example, the SCY-078 calcium has an XRPD pattern comprising
one or more peaks at degrees 2 theta of 5.33, 15.95, and 16.28.
[0170] The present disclosure further relates to citrate salts of
SCY-078, such as SCY-078 citrate Type A, Type B, Type E, Type F,
Type M, Type N, Type O, Type Q, Type R, and Type S. In one
embodiment, the citrate salt of SCY-078 comprises at least one of
Type A, Type B, Type E, Type F, Type M, Type N, Type O, Type Q,
Type R, and Type S.
[0171] The present disclosure further relates to a citrate salt of
SCY-078 comprising Type A. In one embodiment, the citrate salt of
SCY-078 consists essentially of Type A. In another embodiment, the
citrate salt of SCY-078 comprises at least 98% Type A. In a further
embodiment, the citrate salt of SCY-078 comprises at least 99% Type
A.
[0172] In one embodiment, the SCY-078 citrate Type A is stable for
at least 1 week when stored at 60.degree. C. In another embodiment,
the SCY-078 citrate Type A is stable for at least 1 week when
stored at 25.degree. C. and 60% relative humidity. In a further
embodiment, the SCY-078 citrate Type A is stable for at least 1
week when stored at 40.degree. C. and 75% relative humidity.
[0173] In a further embodiment, the SCY-078 citrate Type A has an
equilibrium solubility of 38 mg/mL in non-buffered water at ambient
temperature. In yet another embodiment, the SCY-078 citrate Type A
has an approximate solubility of from 40 mg/mL to 42 mg/mL at room
temperature in at least one solvent selected from methanol,
isopropyl alcohol, acetic acid, tetrahydrofuran, 2
methyl-tetrahydrofuran, 1,4-dioxane, n-methyl-2-pyrrolidone,
dimethyl sulfoxide, and dimethylacetamide. In still another
embodiment, the SCY-078 citrate Type A has a water sorption of 6%
at 25.degree. C. and 80% relative humidity as determined by
DVS.
[0174] In one embodiment, the SCY-078 citrate Type A has a kinetic
solubility of 4 mg/mL at 4 hours in dextrose buffer at pH 5.5. In
another embodiment, the SCY-078 citrate Type A has a kinetic
solubility of 8 mg/mL at 24 hours in dextrose buffer at pH 5.5. In
a further embodiment, the SCY-078 citrate Type A has a kinetic
solubility of 5 mg/mL at 4 hours in phosphate buffer at pH 6.0. In
still another embodiment, the SCY-078 citrate Type A has a kinetic
solubility of 8 mg/mL at 24 hours in phosphate buffer at pH
6.0.
[0175] In one embodiment, the SCY-078 citrate Type A has a kinetic
solubility of 21 mg/mL at 1 hour in SGF media. In another
embodiment, the SCY-078 citrate Type A has a kinetic solubility of
4 mg/mL at 24 hours in FeSSIF media. In yet another embodiment, the
SCY-078 citrate Type A has a kinetic solubility of 10 mg/mL at 1
hour in FaSSIF media. In a further embodiment, the SCY-078 citrate
Type A has a kinetic solubility of 21 mg/mL at 4 hours in FaSSIF
media.
[0176] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type A. In one embodiment, the
SCY-078 citrate Type A has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00009 TABLE I Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.400273 434.322700
0.102336 16.36502 3.34 7.453872 13000.820000 0.191880 11.86031
100.00 9.201639 691.948300 0.204672 9.61110 5.32 10.831710
404.555000 0.153504 8.16811 3.11 11.485080 936.115200 0.179088
7.70486 7.20 12.491050 954.805500 0.179088 7.08652 7.34 13.191360
1776.320000 0.204672 6.71184 13.66 15.020350 1342.537000 0.204672
5.89842 10.33 15.664830 532.278900 0.179088 5.65717 4.09 15.955570
613.057500 0.127920 5.55474 4.72 16.751250 951.729000 0.153504
5.29264 7.32 17.978130 170.323300 0.204672 4.93412 1.31 19.591770
472.971000 0.204672 4.53123 3.64 22.213400 146.982900 0.204672
4.00202 1.13 23.845740 34.469910 0.614016 3.73164 0.27 25.160050
117.741100 0.307008 3.53961 0.91 28.761350 129.234400 0.255840
3.10407 0.99 30.356250 332.945100 0.230256 2.94452 2.56 32.317870
87.151140 0.307008 2.77014 0.67 34.725480 74.664570 0.511680
2.58339 0.57
For example, the SCY-078 citrate Type A has an XRPD pattern
comprising one or more peaks at d-spacings of 11.86, 7.70, 7.09,
6.71, 5.90, and 5.29 .ANG.. In another example, the SCY-078 citrate
Type A has an XRPD pattern comprising one or more peaks at degrees
2 theta of 7.45, 11.49, 12.49, 13.19, 15.02, and 16.75.
[0177] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type B. In one embodiment, the
SCY-078 citrate Type B has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00010 TABLE J Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.561437 214.772000
0.127920 15.89114 18.87 6.920576 1138.274000 0.115128 12.77301
100.00 9.319721 77.009080 0.307008 9.48959 6.77 11.144180
155.075600 0.153504 7.93978 13.62 11.729970 201.281900 0.153504
7.54455 17.68 13.405240 187.402700 0.358176 6.60523 16.46 15.225970
237.746900 0.204672 5.81923 20.89 16.813690 449.144100 0.153504
5.27312 39.46 18.219030 148.764600 0.204672 4.86942 13.07 19.324790
108.017600 0.153504 4.59322 9.49 20.531330 143.254500 0.127920
4.32594 12.59 23.721410 34.728650 0.307008 3.75092 3.05 26.000800
68.151450 0.204672 3.42703 5.99 29.343000 18.852780 0.614016
3.04385 1.66
For example, the SCY-078 citrate Type B has an XRPD pattern
comprising one or more peaks at d-spacings of 15.89, 12.77, 7.54,
5.82, and 5.27 .ANG.. In another example, the SCY-078 citrate Type
B has an XRPD pattern comprising one or more peaks at degrees 2
theta of 5.56, 6.92, 11.73, 15.23, and 16.81.
[0178] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type E. In one embodiment, the
SCY-078 citrate Type E has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00011 TABLE K Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.524293 92.779970
0.307008 15.99790 5.74 7.256628 1616.341000 0.179088 12.18224
100.00 11.438900 216.111400 0.281424 7.73586 13.37 14.135060
246.012400 0.255840 6.26579 15.22 15.755470 336.295500 0.255840
5.62483 20.81 16.331430 208.920100 0.255840 5.42773 12.93 17.088060
99.712520 0.409344 5.18907 6.17 21.127980 46.130650 0.614016
4.20511 2.85 31.562360 23.421260 0.614016 2.83470 1.45
For example, the SCY-078 citrate Type E has an XRPD pattern
comprising one or more peaks at d-spacings of 12.18, 7.74, 6.27,
5.62, and 5.43 .ANG.. In another example, the SCY-078 citrate Type
E has an XRPD pattern comprising one or more peaks at degrees 2
theta of 7.26, 11.44, 14.14, 15.76, and 16.33.
[0179] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type F. In one embodiment, the
SCY-078 citrate Type F has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00012 TABLE L Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.633823 273.473300
0.204672 24.31535 100.00 8.094996 83.291080 0.307008 10.92235 30.46
14.004250 57.266020 0.818688 6.32402 20.94 17.742840 88.241520
0.307008 4.99902 32.27
For example, the SCY-078 citrate Type F has an XRPD pattern
comprising one or more peaks at d-spacings of 24.32 and 5.00 .ANG..
In another example, the SCY-078 citrate Type F has an XRPD pattern
comprising one or more peaks at degrees 2 theta of 3.63 and
17.74.
[0180] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type M. In one embodiment, the
SCY-078 citrate Type M has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00013 TABLE M Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.572099 251.586000
0.179088 15.86076 9.89 7.341430 2543.546000 0.332592 12.04171
100.00 9.506812 193.442600 0.307008 9.30326 7.61 11.507120
612.058600 0.281424 7.69016 24.06 12.151790 217.504900 0.255840
7.28359 8.55 14.166310 475.291100 0.179088 6.25204 18.69 15.796090
798.112100 0.255840 5.61046 31.38 16.373100 704.236700 0.179088
5.41401 27.69 17.342680 236.560600 0.511680 5.11346 9.30 18.264100
127.099200 0.307008 4.85751 5.00 20.028560 111.330700 0.307008
4.43338 4.38 21.230190 166.125100 0.255840 4.18509 6.53 22.124240
151.032300 0.358176 4.01795 5.94 23.019390 107.550400 0.307008
3.86369 4.23 25.286220 144.601600 0.511680 3.52223 5.69 27.656070
79.447100 0.358176 3.22556 3.12 28.430390 56.622940 0.409344
3.13945 2.23 29.646340 75.432070 0.614016 3.01339 2.97 32.376530
74.417430 0.307008 2.76525 2.93 36.534050 34.760060 0.614016
2.45955 1.37 38.139080 26.017290 0.614016 2.35966 1.02
For example, the SCY-078 citrate Type M has an XRPD pattern
comprising one or more peaks at d-spacings of 12.04, 7.69, 6.25,
5.61, and 5.41 .ANG.. In another example, the SCY-078 citrate Type
M has an XRPD pattern comprising one or more peaks at degrees 2
theta of 7.34, 11.51, 14.17, 15.80, and 16.37.
[0181] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type N. In one embodiment, the
SCY-078 citrate Type N has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00014 TABLE N Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.410849 486.098000
0.076752 16.33306 9.13 7.067553 5326.844000 0.089544 12.50771
100.00 10.838060 670.175200 0.063960 8.16333 12.58 11.383920
1260.568000 0.089544 7.77310 23.66 11.924900 315.766000 0.153504
7.42166 5.93 12.367310 352.822800 0.153504 7.15714 6.62 12.923310
1574.956000 0.089544 6.85044 29.57 14.132120 1282.157000 0.102336
6.26708 24.07 15.162450 1604.350000 0.102336 5.84346 30.12
16.256930 1496.153000 0.089544 5.45244 28.09 16.676790 891.116500
0.115128 5.31610 16.73 16.898590 608.961300 0.102336 5.24682 11.43
17.769210 633.106100 0.127920 4.99166 11.89 18.512560 1119.245000
0.102336 4.79287 21.01 20.764100 264.835400 0.102336 4.27797 4.97
21.599360 277.781400 0.127920 4.11439 5.21 22.726850 204.007000
0.102336 3.91276 3.83 23.066060 336.013100 0.153504 3.85598 6.31
24.489610 243.365100 0.127920 3.63497 4.57 28.491330 175.736200
0.179088 3.13287 3.30 30.668850 84.372280 0.307008 2.91522 1.58
33.097360 34.363080 0.614016 2.70666 0.65 36.308500 40.510880
0.716352 2.47431 0.76
For example, the SCY-078 citrate Type N has an XRPD pattern
comprising one or more peaks at d-spacings of 12.51, 7.77, 6.85,
6.27, 5.84, 5.45, and 4.79 .ANG.. In another example, the SCY-078
citrate Type N has an XRPD pattern comprising one or more peaks at
degrees 2 theta of 7.07, 11.38, 12.92, 14.13, 15.16, 16.26, and
18.51.
[0182] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type O. In one embodiment, the
SCY-078 citrate Type 0 has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00015 TABLE O Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.214240 359.101800
0.409344 27.48844 9.56 5.562890 564.632100 0.102336 15.88699 15.03
7.082335 3757.717000 0.115128 12.48164 100.00 11.908250 1208.103000
0.089544 7.43200 32.15 14.197590 602.552700 0.115128 6.23833 16.04
16.178670 447.137400 0.179088 5.47864 11.90 16.755170 956.290800
0.115128 5.29141 25.45 28.567280 48.759020 0.307008 3.12472
1.30
For example, the SCY-078 citrate Type O has an XRPD pattern
comprising one or more peaks at d-spacings of 12.48, 7.43, and 5.29
.ANG.. In another example, the SCY-078 citrate Type O has an XRPD
pattern comprising one or more peaks at degrees 2 theta of 7.08,
11.91, and 16.76.
[0183] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type Q. In one embodiment, the
SCY-078 citrate Type Q has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00016 TABLE P Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.686347 449.970600
0.102336 15.54234 13.51 6.300879 3329.599000 0.140712 14.02779
100.00 6.890776 1871.585000 0.076752 12.82818 56.21 8.441730
95.233120 0.153504 10.47449 2.86 9.785571 136.396600 0.153504
9.03885 4.10 11.334590 1386.986000 0.140712 7.80682 41.66 11.733060
826.632000 0.102336 7.54257 24.83 12.939760 265.781600 0.409344
6.84177 7.98 13.691820 190.778000 0.153504 6.46762 5.73 14.156830
332.781500 0.153504 6.25620 9.99 14.496570 455.453300 0.102336
6.11034 13.68 15.135910 594.105600 0.153504 5.85365 17.84 15.903400
540.737100 0.127920 5.57284 16.24 17.010910 1588.263000 0.127920
5.21243 47.70 17.296950 476.914900 0.127920 5.12687 14.32 18.962100
570.585000 0.204672 4.68025 17.14 20.190720 395.466100 0.102336
4.39814 11.88 20.646480 601.591200 0.153504 4.30207 18.07 21.298380
208.197100 0.153504 4.17185 6.25 22.025220 160.183700 0.307008
4.03579 4.81 22.719750 205.611500 0.204672 3.91397 6.18 23.633070
128.288000 0.307008 3.76474 3.85 25.991160 157.744000 0.204672
3.42828 4.74 27.462080 37.389280 0.307008 3.24790 1.12 28.950740
597.140100 0.140712 3.08419 17.93 34.085010 29.835660 0.511680
2.63046 0.90
For example, the SCY-078 citrate Type Q has an XRPD pattern
comprising one or more peaks at d-spacings of 14.03, 12.83, 7.81,
7.54, and 5.21 .ANG.. In another example, the SCY-078 citrate Type
Q has an XRPD pattern comprising one or more peaks at degrees 2
theta of 6.30, 6.89, 11.33, 11.73, and 17.01.
[0184] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type R. In one embodiment, the
SCY-078 citrate Type R has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00017 TABLE Q Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 6.143884 611.904200
0.153504 14.38589 100.00 11.248800 143.606900 0.255840 7.86616
23.47 14.059410 351.488100 0.204672 6.29933 57.44 14.636960
372.993000 0.204672 6.05205 60.96 16.413500 550.672100 0.102336
5.40078 89.99 17.742000 362.377400 0.614016 4.99926 59.22 19.697290
248.048100 0.307008 4.50719 40.54 22.159300 133.589200 0.409344
4.01167 21.83 30.197650 27.706020 0.614016 2.95963 4.53
For example, the SCY-078 citrate Type R has an XRPD pattern
comprising one or more peaks at d-spacings of 14.39, 6.05, 5.40,
and 5.00 .ANG.. In another example, the SCY-078 citrate Type R has
an XRPD pattern comprising one or more peaks at degrees 2 theta of
6.14, 14.64, 16.41, and 17.74.
[0185] The present disclosure further relates to a citrate salt of
SCY-078 comprising SCY-078 citrate Type S. In one embodiment, the
SCY-078 citrate Type S has an XRPD pattern comprising peaks at one
or more of the following locations:
TABLE-US-00018 TABLE R Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.512446
1020.013000 0.089544 16.03226 16.16 7.296105 6310.710000 0.153504
12.11641 100.00 8.443163 252.219900 0.230256 10.47272 4.00
11.057440 582.228600 0.179088 8.00186 9.23 12.004950 2714.326000
0.166296 7.37235 43.01 14.346070 536.999100 0.204672 6.17410 8.51
16.812800 1626.861000 0.127920 5.27340 25.78 19.482230 106.142000
0.358176 4.55646 1.68 22.188280 88.048920 0.409344 4.00650 1.40
24.046320 53.183810 0.818688 3.70096 0.84
For example, the SCY-078 citrate Type S has an XRPD pattern
comprising one or more peaks at d-spacings of 16.03, 12.12, 7.37,
and 5.27 .ANG.. In another example, the SCY-078 citrate Type S has
an XRPD pattern comprising one or more peaks at degrees 2 theta of
5.51, 7.30, 12.00, and 16.81.
[0186] The present disclosure further relates to a method for
preparing a pharmaceutically acceptable salt of SCY-078 comprising
combining at least components: (i) a free base of SCY-078; (ii) a
weak organic acid; and (iii) a liquid carrier. The weak organic
acid may be chosen from those known in the art. In one embodiment,
the weak organic acid is selected from citric acid, fumaric acid,
methanesulfonic acid, and hippuric acid. In another embodiment, the
weak organic acid is citric acid. In a further embodiment, the
liquid carrier is a solvent or solvent mixture, and at least one of
the free base of SCY-078 and the weak organic acid is soluble in
the solvent or solvent mixture. In still another embodiment, the
liquid carrier comprises at least one of ethanol, isopropyl
alcohol, acetonitrile, acetone, ethyl acetate, and
tetrahydrofuran/water mixture. In yet another embodiment, the
liquid carrier comprises ethanol. In one embodiment, the method
further comprises combining (iv) an anti-solvent. In another
embodiment, the anti-solvent comprises N-heptane.
[0187] In one embodiment, the method further comprises agitating
the combination of at least components (i)-(iii). In a further
embodiment, the method further comprises agitating the combination
of at least components (i)-(iii) for at least 24 hours. In another
embodiment, the method further comprises agitating and heating the
combination of at least components (i)-(iii). In a further
embodiment, the method further comprises agitating and heating the
combination of at least components (i)-(iii) to a temperature of
from 40.degree. C. to 60.degree. C. In still another embodiment,
the method further comprises agitating and heating the combination
of at least components (i)-(iii) to a temperature of from
40.degree. C. to 60.degree. C. for at least 60 minutes.
[0188] In one embodiment, the method further comprises agitating
and heating the combination of at least components (i)-(iii) and
adding to the combination of at least components (i)-(iii) an
anti-solvent after at least 14 hours. In yet another embodiment,
the anti-solvent is N-heptane.
[0189] In one embodiment, the method further comprises agitating
and heating the combination of at least components (i)-(iii);
adding to the combination of at least components (i)-(iii) an
anti-solvent after at least 14 hours; and cooling the combination
of at least components (i)-(iii). In a further embodiment, the
cooling is from 0.degree. C. to 20.degree. C. In another
embodiment, the cooling is from 0.degree. C. to 20.degree. C. at a
rate of 0.25.degree. C./min.
[0190] The present disclosure further relates to methods for
preparing citrate Type A salt of SCY-078. In one embodiment, the
method comprises desolvating at least one of Type B, Type N, and
Type Q citrate salt of SCY-078. In a further embodiment, the
desolvating comprises drying under nitrogen. In yet another
embodiment, the desolvating comprises drying under vacuum
filtration.
[0191] The present disclosure additionally relates to
pharmaceutical compositions comprising a pharmaceutically
acceptable salt of SCY-078, and a pharmaceutically acceptable
carrier. The pharmaceutically acceptable carrier may be chosen
from, among other things, one or more of the following: water,
saline solutions, buffers, and alcohols. In one embodiment, the
pharmaceutically acceptable salt in the pharmaceutical composition
is selected from citrate, hippurate, mesylate, and fumarate. In yet
another embodiment, the pharmaceutically acceptable salt is a
citrate salt. In still another embodiment, the pharmaceutically
acceptable salt of SCY-078 is SCY-078 citrate Type A.
[0192] According to certain embodiments, the pharmaceutically
acceptable salt of SCY-078 may consist essentially of a specified
crystal form. According to certain embodiments, the
pharmaceutically acceptable salt of SCY-078 may comprise a
specified crystal in combination with one or more other crystal
forms. The pharmaceutically acceptable salt of SCY-078 may, for
example, contain a specified crystal form together with less than
10% of another crystal form(s), such as less than 5%, less than 2%,
or less than 1%.
[0193] In one embodiment, the pharmaceutical composition is made by
dissolving the pharmaceutically acceptable salt of SCY-078 in a
pharmaceutically acceptable carrier. The pharmaceutically
acceptable carrier may be chosen from, among other things, one or
more of the following: water, saline solutions, buffers, and
alcohols. In another embodiment, the pharmaceutical composition is
suitable for injection into a human. In a further embodiment, the
pharmaceutical composition is suitable for intravenous injection
into a human. In another embodiment, the pharmaceutically
acceptable salt is a citrate salt. In still another embodiment, the
pharmaceutically acceptable salt of SCY-078 is SCY-078 citrate Type
A.
[0194] The present disclosure further relates to methods of
preparing a pharmaceutical composition comprising pharmaceutically
acceptable salts of SCY-078, and a pharmaceutically acceptable
carrier. The pharmaceutically acceptable carrier may be chosen
from, among other things, one or more of the following: water,
saline solutions, buffers, and alcohols. In one embodiment, the
pharmaceutically acceptable salt of SCY-078 is dissolved in the
pharmaceutically acceptable carrier within 1 hour. In another
embodiment, the pharmaceutically acceptable salt of SCY-078 is
dissolved in the pharmaceutically acceptable carrier within 24
hours. In a further embodiment, the pharmaceutically acceptable
salt is a citrate salt. In still another embodiment, the
pharmaceutically acceptable salt of SCY-078 is SCY-078 citrate Type
A.
[0195] The present disclosure additionally relates to methods of
treating a fungal infection in a patient in need thereof. For
example, the methods include treating Invasive Candidiasis and
Invasive Aspergillosis. In one embodiment, the method comprises
administering to the patient in need thereof a pharmaceutical
composition comprising an effective amount of a pharmaceutically
acceptable salt of SCY-078. In another embodiment, the
pharmaceutically acceptable salt is a citrate salt. In a further
embodiment, the pharmaceutically acceptable salt of SCY-078 is
SCY-078 citrate Type A. In another embodiment, the pharmaceutical
composition is suitable for injection into a human. In yet another
embodiment, the pharmaceutical composition is suitable for
intravenous injection into a human.
EXAMPLES
[0196] Methods and Materials
[0197] The following describes the materials and methods used for
all examples unless otherwise stated.
TABLE-US-00019 TABLE 1 Abbreviation/ Type Acronym Full
Name/Description Solvent ACN Acetonitrile DCM Dichloromethane DMA
Dimethylamine DMAc Dimethylacetamide DMSO Dimethyl sulfoxide EtOH
Ethanol EtOAc Ethyl Acetate IPA Isopropyl alcohol IPAc Isopropyl
acetate MeOH Methanol MIBK Methyl isobutyl ketone MTBE Methyl
tert-butyl ether NMP N-methyl-2-pyrrolidone THF Tetrahydrofuran
Bio-Relevant SGF Simulated gastric fluid Media FaSSIF Fasted state
simulated intestinal fluid FeSSIF Fed state simulated intestinal
fluid Techniques DSC Differential scanning calorimetry DVS Dynamic
Vapor Sorption HPLC High Performance Liquid Chromatography TGA
Thermogravimetric analysis XRPD X-ray power diffraction Other FB
Freebase NF New form RH Relative humidity RT Room temperature
[0198] X-Ray Powder Diffraction (XRPD)--To perform XRPD analysis, a
PANanalytical Empryean X-ray powder diffractometer was used. The
typical XRPD parameters used are listed below. Data Viewer (version
1.4a) from PANanalytic was used for analysis.
TABLE-US-00020 X-Ray Wavelength Cu, k.alpha., K.alpha.1 (.ANG.):
1.540598, K.alpha.2 (.ANG.): 1.544426 K.alpha.2/K.alpha.1 intensity
ratio: 0.50 X-Ray tube setting 45 kV, 40 mA Divergence split
Automatic Scan mood Continuous Scan range (.degree.2 TH)
3.degree.-40.degree. Step size (.degree.2 TH) 0.0130 or 0.0170 Scan
speed (.degree./min) ~10
[0199] Differential Scanning calorimetry (DSC)--DSC was performed
with a TA Q2000 DSC from TA Instruments. To perform DSC, the sample
was ramped from room temperature to the desired temperature at a
heating rate of 10.degree. C./min, using N.sub.2 as the purge gas
and with the pan crimped. Universal Analysis 2000 (TA Instruments)
was used to analyze the results.
[0200] Thermogravimetric Analysis (TGA)--TGA was performed with a
TA Q500/05000 TGA from TA Instruments. To perform TGA, the sample
was ramped from room temperature to the desired temperature at a
heating rate of 10.degree. C./min, using N.sub.2 as the purge gas.
Universal Analysis 2000 (TA Instruments) was used to analyze the
results. The temperature was calibrated using nickel and the weight
using TA-supplied standard weights and verified against calcium
oxalate monohydrate dehydration and decomposition.
[0201] Dynamic Vapor Sorption (DVS)--The term "DVS" means the
procedure described in below. The relative humidity at 25.degree.
C. was calibrated against deliquescence point of LiCl,
Mg(NO.sub.3).sub.2 and KCl.
TABLE-US-00021 Temperature 25.degree. C. Gas Flow and Rate N.sub.2,
200 mL/min dm/dt 0.002%/min Min. dm/dt stability duration 10 min
Max. equilibrium time 180 min RH range 95% RH-0% RH-95% RH RH step
size 10% (90% RH-0% RH-90% RH) 5% (90% RH-95% RH-90% RH)
[0202] The DVS of SCY-078 salts were tested according to the above
method, using a 10-20 mg sample size. The DVS was measured using a
Surface Measurement Systems (SMS) DVS Intrinsic.
[0203] High Power Liquid Chromatography (HPLC) Method--An Agilent
1260 HPLC with DAD detector was utilized to test solubility or to
test purity and stability. For all compounds tested other than the
trifluoroacetate salts (Type A and B) and the HCl Type I and II
salts, the conditions and parameters used for measuring solubility
are shown in Table 2A and for measuring stability are showing in
Table 3A. The conditions and parameters used for the solubility of
the trifluoroacetate salts (Type A and B) and the HCl Type I and II
salts are shown in Table 2B and for stability are shown in Table
3B. System suitability was tested by injecting standard solutions
five times in each sample sequence, and the relative standard
deviation of the peak areas was less than 2%.
TABLE-US-00022 TABLE 2A Column 53#: Eclipse plus C18, 4.6*150 mm,
3.5 .mu.m Mobile Phase A: 0.1% HClO.sub.4 in H.sub.2OB: ACN
Gradient Table Time (mins) % A % B 0 70 30 1 70 30 7 5 95 8 5 95
8.1 70 30 12 70 30 Flow Rate 1.0 mL/min Injection Volume 10 .mu.L
Detector Wavelength 255 nm Run Time 12 min Column Temperature
40.degree. C. Autosampler Temperature RT
TABLE-US-00023 TABLE 2B Column Waters C18 110A, 4.6*150 mm, 5 .mu.m
Mobile Phase A: 0.1% TFA in H.sub.2O; B: 0.1% TFA in acetonitrile
Gradient Table Time (mins) % B 0 5 1 5 9 95 11 95 11.1 5 15 5 Flow
Rate 1.0 mL/min Injection Volume 10 .mu.L Detector Wavelength UV at
255 nm Run Time 15 min Column Temperature 40.degree. C. Autosampler
Temperature RT
TABLE-US-00024 TABLE 3A Column Phenomenex, Gemini C18, 4.6 .times.
150 mm, 3 mm Mobile Phase A: 0.1% HClO.sub.4 in H.sub.2O B: ACN
Gradient Table Time (mins) % A % B 0.0 63 37 5.0 43 57 15.0 38 62
20.0 10 90 30.0 10 90 31.0 63 37 36.0 63 37 Flow Rate 1.0 mL/min
Injection Volume 10 .mu.L Detector Wavelength UV at 210 min Run
Time 36.0 min Column Temperature 40.degree. C. Sampler Temperature
RT Diluent ACN
TABLE-US-00025 TABLE 3B Column Waters C18 110A, 4.6*150 mm, 5 .mu.m
Mobile Phase A: 0.1% TFA in H.sub.2O; B: 0.1% TFA in acetonitrile
Gradient Table Time (mins) % B 0.0 5 23 95 27 95 27.1 5 30 5 Flow
Rate 1.0 mL/min Injection Volume 10 .mu.L Detector Wavelength 270
min Run Time 30.0 min Column Temperature 40.degree. C. Sampler
Temperature RT
[0204] SGF Media Preparation--The term "SGF media" means a solution
prepared according to the following method. Sodium chloride (0.2 g)
and Triton X-100 (0.1 g) were combined in a 100 mL flask. Then
deionized water was added. The mixture was stirred until all solids
were dissolved. Then 12 N HCl (200 .mu.L) was added and the pH
value was checked with a pH meter. The pH was adjusted to 1.8 with
1N HCl or 1N NaOH. Once the desired pH was established, the
solution was diluted to volume with deionized water.
[0205] FaSSIF Media Preparation--The term "FaSSIF media" means a
solution prepared according to the following method. A FaSSIF
Dissolving Buffer was prepared by dissolving maleic acid (0.222 g)
in 45 mL of purified water. The pH was adjusted to exactly 6.4
using 1N NaOH.
[0206] FaSSIF media was prepared by adding sodium taurocholate
(0.161 g), sodium chloride (0.398 g), and lecithin (0.0156 g) into
a 100-mL volumetric flask. Then 40 mL of deionized water was added.
The solution was sonicated until clear. Next 45 mL of the FaSSIF
Dissolving Buffer was added. The pH was adjusted to 6.5 with 1N
NaOH or 1N HCl. Once the desired pH was reached, the solution was
diluted to volume with deionized water.
[0207] An alternative media ("FaSSIF alternative media") was used
to study the trifluoroacetate salts (Type A and B) and the HCl Type
I salt. More specifically, the media was prepared by weighing 0.17
g of sodium phosphate monobasic (NaH2PO4, anhydrous), 0.021 g of
sodium hydroxide, and 0.31 g of sodium chloride into a 50-mL
volumetric flask and was dissolve with approximately 48 mL of
purified water. The pH was adjusted to exactly 6.5 using 1 M HCl or
1 M NaOH and diluted to volume with purified water. 0.11 g of SIF
powder was then added, stirred and sonicated until all the powder
was completely dissolved. The solution was equilibrated for 2 hours
at RT before use. The solution can be stored at RT for 48 hours or
4.degree. C. for 7 days and should be equilibrated to RT before
use
[0208] FeSSIF Preparation--The term "FeSSIF media" means a solution
prepared according to the following method. A FeSSIF Dissolving
Buffer was prepared by dissolving maleic acid (0.638 g) and NaCl
(0.728 g) in 100 mL of purified water. The pH was adjusted to
exactly 5.8 using 1N NaOH or 1N HCl.
[0209] FeSSIF media was prepared by adding sodium taurocholate
(0.269 g), lecithin (0.078 g), sodium oleate (0.012 g), and
glyceryl monooleate (0.089) into a 50-mL flask. Then 2.5 mL of the
FeSSIF Dissolving Buffer was added. The solution was sonicated. An
additional 12.5 mL of the FeSSIF Dissolving Buffer was then added 1
mL stepwise forming an emulsion. The solution was transferred to a
50-mL volumetric flask and diluted to volume with the FeSSIF
Dissolving Buffer.
[0210] An alternative media ("FeSSIF alternative media") was used
to study the trifluoroacetate salts (Type A and B) and the HCl Type
I salt. More specifically, the media was prepared by transferring
0.41 mL of glacial acid and weighing 0.20 g of sodium hydroxide,
0.59 g of sodium chloride into a 50-mL volumetric flask. This was
dissolved with approximately 48 mL of purified water. The pH was
adjusted to exactly 5.0 using 1 M HCl or 1 M NaOH and diluted to
volume with purified water. 0.56 g of SIF powder was added, stirred
and sonicated until all the powder is completely dissolved. The
solution can be stored at RT for 48 hours or 4.degree. C. for 7
days and should be equilibrated to RT before use.
[0211] Dextrose Buffer (pH 5.5) Preparation--The terms "dextrose
buffer at pH 5.5" and "dextrose buffer (pH 5.5)" mean a solution
prepared according to the following method. Dextrose (0.5 g) was
added to a 100-mL volumetric flask. Then 1M HCl or 1M NaOH was
added to adjust the pH of the buffer to pH 5.5.
[0212] Acetate Buffer (pH 5.5) Preparation--The acetate buffer (pH
5.5) used for the trifluoroacetate salts (Type A and B) and the HCl
Type I salt was prepared by placing 0.60 g sodium acetate
(NaC.sub.2H.sub.3O.sub.2.3H.sub.2O) in a 100-mL volumetric flask,
adding 3 mL of 2 M acetic acid solution, and then adding purified
water to volume.
[0213] Phosphate Buffer (pH 6.0) Preparation--The terms "phosphate
buffer at pH 6.0" and "phosphate buffer (pH 6.0)" mean a solution
prepared according to the following method. A solution of 0.2 M
KH.sub.2PO.sub.4 (25 mL) and 0.2 M NaOH (5.6 mL) was prepared in a
100-mL volumetric flask. The pH was checked by pH meter. Then water
was added to volume.
[0214] An alternative media ("phosphate (pH 6.0) alternative
media") was used to study the trifluoroacetate salts (Type A and B)
and the HCl Type I salt. More specifically, the media was prepared
by dissolving 2.72 g of 0.2 M monobasic potassium phosphate
(KH.sub.2PO.sub.4) in purified water, and diluting with purified
water to 100 mL. 0.8 g of 0.2 M sodium hydroxide in purified water
was diluted with purified water to 100 mL. Then 50 mL of the 0.2 M
monobasic potassium phosphate solution was placed in a 200-mL
volumetric flask, 5.6 mL of 0.2 M sodium hydroxide solution was
added, and then purified water was added to volume.
[0215] Phosphate Buffer (pH 7.5) Preparation--The terms "phosphate
buffer at pH 7.5" and "phosphate buffer (pH 7.5)" mean a solution
prepared according to the following method. A solution of 0.2 M
KH.sub.2PO.sub.4 (25 mL) and 0.2 M NaOH (40.2 mL) was prepared in a
100-mL volumetric flask. The pH was checked by pH meter. Then water
was added to volume.
[0216] Kinetic Solubility of SCY-078 Salts--The term "kinetic
solubility" with respect to SCY-078 salts means the following
procedure. First, 15 mg, 50 mg, or 100 mg of one of the SCY-078
salts was placed into a 4-mL plastic centrifuge tubes along with
1.7 mL of relevant media or 2.0 mL of water. For dextrose buffer at
pH 5.5, phosphate buffer at pH 6.0, and phosphate buffer at pH 7.5,
15 mg of the SCY-078 salt was used. For SGF media, FeSSIF media,
and FaSSIF media, 50 mg of the SCY-078 salt was used. For water,
100 mg of the SCY-078 salt was used. The actual weight of each
sample was recorded. The tube was subsequently capped and the
suspension samples were stirred on a rolling incubator (25 rpm) at
room temperature. Samples were taken at 1 hour, 4 hours, and 24
hours respectively. For each sample, a 0.5 mL aliquot of the
suspension was transferred into a 1.5-mL centrifuge filtration tube
and centrifuged. The samples were then filtered through the
centrifuge filtration tube (0.45 .mu.m) at 8,000 rpm at room
temperature for 3 minutes.
[0217] The trifluoroacetate salts (Type A and B) and the HCl Type I
salt were tested using the following alternative procedure. First,
15 mg, 36 mg or 90 mg solid was weighted into a 4-mL plastic tube,
and 3 mL of relevant media was added before leaving the suspension
on a rolling incubator (25 r/min). For SCF, 90 mg of solid was
used. For FaSSIF, acetate buffer (pH 5.5), and phosphate buffer (pH
6.0), 15 mg solid was used. For FeSSIF, 36 mg of solid was used.
1.0 mL aliquot of the suspension was sampled for centrifugation
with the supernatant submitted for HPLC and pH measurement and
solid for XRPD characterization at 1 hr, 4 hr and/or 24 hrs.
[0218] Approximate solubility of SCY-078 salts--The term
"approximate solubility" with respect to SCY-078 salts means the
procedure described in this paragraph. To conduct each experiment,
a sample of a SCY-078 salt (.about.2 mg) was added into a 3-mL
glass vial. Then a solvent was added step-wise (100 .mu.L per step)
into the vials until the solids were dissolved or a total volume of
2 mL was reached.
[0219] Equilibrium solubility of SCY-078 salts--The term
"equilibrium solubility" with respect to SCY-078 salts means the
procedure described in this paragraph. The equilibrium solubility
of a SCY-078 salt was evaluated in water at room temperature.
First, the SCY-078 salt (.about.50 mg) was weighed into a 1.5-mL
vial followed by addition of 1.0 mL water, and then the sample was
stirred (800 rpm) at room temperature for 24 hours. The sample was
centrifuged with the residual solid analyzed by XRPD and
supernatant concentration measured by HPLC.
[0220] Polarized light microscopic imaging--Polarized light
microscopic (PLM) images was captured at room temperature using
Axio Lab A1 upright microscope equipped with ProgRes.RTM. CT3
camera. The sample was sandwiched between a glass slide and a top
cover before placed under the polarized light microscopy for
imaging.
Example 1
[0221] SCY-078 Phosphate: The phosphate salt of SCY-078 was
prepared from SCY-078 freebase, which was prepared using known
procedures. See, e.g., U.S. Pat. No. 8,188,085. SCY-078 freebase
(10.0 g) was placed in a 250 mL reactor. Ethanol (50 mL), ethyl
acetate (30 mL), acetic acid (1.5 mL) and water (1 mL) were added
and the mixture was stirred at room temperature over 10 minutes.
The resulting homogeneous solution was heated to 50.degree. C. and
phosphoric acid (1.74 g) solution in ethyl acetate was slowly added
to the solution at 50.degree. C. for 1 hour. The resulting slurry
was slowly cooled to room temperature and stirred overnight at room
temperature. The slurry was filtered, and the wet cake was washed
with 20 mL mixed solvents (ethanol:ethyl acetate:water=5:5:0.1) two
times, then twice with ethyl acetate (1 mL). The wet cake was dried
under vacuum with nitrogen sweep over three hours, and then dried
in a vacuum oven overnight to obtain 11.08 g of an off-white
crystal. The retention time of the compound was 4.08 minutes, as
measured by HPLC using an Ascentis Express C18 column with standard
gradient: 10-95% of B in 6 minutes (A=0.1% phosphoric acid,
B=acetonitrile), 2 minute hold 2 minute post; flow rate: 1.8
mL/minute (UV detection at 245 nm, 40.degree. C.).
[0222] SCY-078 phosphate was characterized by XRPD, which evidenced
that the compound is crystalline (FIG. 1). The 2 theta and
d-spacing values are summarized in Table 4. The DSC curve of
SCY-078 phosphate exhibited two endothermic peaks at 48.1.degree.
C. and 267.degree. C. (FIG. 2). A weight loss of 6.6% was observed
up to 155.4.degree. C. in the TGA curve (FIG. 2).
TABLE-US-00026 TABLE 4 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.446579 121.838400
0.153504 25.63591 8.36 6.002339 410.263500 0.127920 14.72481 28.14
6.926787 321.574500 0.153504 12.76157 22.05 7.923199 635.487400
0.179088 11.15879 43.58 9.163023 1458.149000 0.230256 9.65152
100.00 9.949172 420.112200 0.153504 8.89059 28.81 10.395180
355.706200 0.204672 8.51011 24.39 11.606700 1098.847000 0.179088
7.62440 75.36 11.998390 742.370400 0.153504 7.37637 50.91 12.509650
1152.457000 0.230256 7.07603 79.04 14.390130 1325.262000 0.179088
6.15529 90.89 15.561700 1295.270000 0.230256 5.69443 88.83
16.742160 847.559600 0.230256 5.29549 58.13 17.427190 694.495600
0.179088 5.08885 47.63 18.989620 584.788500 0.204672 4.67353 40.10
19.700330 472.891400 0.204672 4.50650 32.43 20.641180 788.029700
0.153504 4.30316 54.04 22.864060 331.310800 0.204672 3.88959 22.72
24.026930 187.756700 0.307008 3.70391 12.88 25.365620 208.707200
0.358176 3.51139 14.31 28.405150 77.468630 0.614016 3.14218 5.31
30.814330 70.380370 0.818688 2.90179 4.83
Example 2
[0223] SCY-078 Crystalline Freebase (MeOH desolvate): The MeOH
desolvate was prepared as follows. SCY-078 phosphate salt (10.0 g)
was charged into a 250 mL reactor. Sodium carbonate (50 mL of a 10%
solution) was added at 20.degree. C. and agitated.
2-methyltetrahydrofuan (100 mL) was added and agitated strongly at
20.degree. C. until all the solids dissolved. The mixture was left
to stand for 30 minutes to leave two clear layers which were
separated and the organic layer was washed twice with deionized
water (40 mL). The washed organic layer was transferred to a 125-mL
reaction vessel and agitated at 500 rpm, heated to 50.degree. C.
and distilled under partial vacuum at 50.degree. C. down to 40 mL
volume. Methanol (80 mL) was added to the reaction vessel at
50.degree. C., which was then cooled to 40.degree. C.; after 2
hours, crystals formed. The volume was then distilled down to 50 mL
at 40.degree. C. under partial vacuum over 16 hours. There was then
constant volume distillation at 40.degree. C. while adding methanol
(40 mL) over 2 hours. Water (20 mL) was then added over 2 hours.
The reaction vessel was then cooled to 20.degree. C. over 2 hours
and then slurry aged at 20.degree. C. for 2 hours. The mixture was
then filtered and the resulting wet cake washed with 20 mL of a 4:1
solution of methanol and water. The wet cake was dried under
nitrogen sweep at room temperature for 16 hours. XRPD analysis
confirmed that the dry cake is desolvated methanol solvate (yield
89%, purity: 99.1%).
[0224] Two batches of MeOH desolvate were prepared and
characterized by XRPD, DSC, and TGA (FIGS. 3-5). XRPD patterns
evidenced that the compound is crystalline. The 2 theta and
d-spacing values from Batch 1 and Batch 2 are summarized in Tables
5a and 5b, respectively. The DSC curve of MeOH desolvate Batch 1
exhibited an endotherm at -55.0.degree. C. and an exotherm at
-281.5.degree. C. The DSC curve of MeOH desolvate Batch 2 exhibited
an endotherm at -56.1.degree. C. and an exotherm at 279.2.degree.
C. The TGA curve of Batch 1 showed a weight loss of 4.7% before
120.degree. C. The TGA curve of Batch 1 showed a weight loss of
6.6% before 120.degree. C. The TGA curve of Batch 2 showed a weight
loss of 4.9% before 120.degree. C.
TABLE-US-00027 TABLE 5a Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 6.763088 656.275900
0.153504 13.07009 7.96 7.007256 762.055000 0.127920 12.61520 9.24
7.747366 5938.858000 0.179088 11.41165 72.02 8.156786 1751.303000
0.179088 10.83975 21.24 9.712988 1115.822000 0.153504 9.10623 13.53
10.141860 2106.808000 0.076752 8.72210 25.55 12.584090 950.310500
0.153504 7.03433 11.52 13.014360 1356.119000 0.127920 6.80272 16.45
13.486330 1749.145000 0.102336 6.56570 21.21 13.729600 2433.802000
0.076752 6.44991 29.52 14.005940 8245.783000 0.166296 6.32326
100.00 14.405120 4246.837000 0.140712 6.14892 51.50 14.876760
4956.689000 0.127920 5.95503 60.11 15.210400 2019.649000 0.089544
5.82515 24.49 15.545740 4247.989000 0.153504 5.70024 51.52
15.924930 1123.799000 0.127920 5.56535 13.63 16.357440 911.992900
0.102336 5.41916 11.06 16.653970 1230.506000 0.153504 5.32333 14.92
17.281780 1476.632000 0.115128 5.13134 17.91 18.290550 2584.896000
0.127920 4.85054 31.35 18.910970 2762.926000 0.089544 4.69279 33.51
19.423650 3792.983000 0.166296 4.57006 46.00 20.154410 631.061700
0.153504 4.40598 7.65 21.211700 1085.950000 0.153504 4.18870 13.17
22.103930 642.381300 0.153504 4.02160 7.79 22.813500 357.089200
0.153504 3.89809 4.33 23.851840 485.307900 0.204672 3.73070 5.89
24.372350 254.224300 0.153504 3.65219 3.08 25.127990 631.886600
0.204672 3.54405 7.66 25.582260 817.763400 0.230256 3.48214 9.92
25.946780 361.733700 0.127920 3.43404 4.39 27.215450 399.894700
0.204672 3.27677 4.85 31.598700 117.418900 0.358176 2.83152 1.42
34.043420 360.328100 0.179088 2.63357 4.37 35.453150 228.142700
0.204672 2.53202 2.77 37.397760 89.968660 0.204672 2.40471 1.09
TABLE-US-00028 TABLE 5b Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 6.689568 495.508900
0.076752 13.21357 7.10 6.958760 795.039300 0.076752 12.70301 11.39
7.719929 6977.127000 0.102336 11.45214 100.00 8.113519 1569.148000
0.076752 10.89746 22.49 9.660554 883.585800 0.089544 9.15554 12.66
10.105090 1377.370000 0.063960 8.75376 19.74 12.511740 551.167400
0.076752 7.07485 7.90 12.972470 906.794200 0.102336 6.82459 13.00
13.432450 898.612700 0.051168 6.59191 12.88 13.698610 1280.818000
0.063960 6.46442 18.36 13.963580 6943.854000 0.102336 6.34235 99.52
14.354450 3936.292000 0.102336 6.17051 56.42 14.833880 3242.652000
0.102336 5.97215 46.48 15.161830 1072.948000 0.102336 5.84370 15.38
15.499310 3840.597000 0.115128 5.71721 55.05 15.870270 694.539900
0.063960 5.58440 9.95 16.294450 561.885100 0.102336 5.43997 8.05
16.589520 716.170000 0.076752 5.34387 10.26 17.231620 1048.768000
0.089544 5.14616 15.03 18.228150 1455.529000 0.089544 4.86701 20.86
18.853630 2320.288000 0.102336 4.70693 33.26 19.358690 2769.789000
0.127920 4.58525 39.70 20.105050 319.040400 0.153504 4.41669 4.57
21.158160 854.556900 0.089544 4.19918 12.25 22.060990 457.091300
0.127920 4.02933 6.55 22.755630 189.699300 0.153504 3.90788 2.72
23.818130 259.770000 0.102336 3.73590 3.72 24.629730 250.065300
0.153504 3.61461 3.58 25.034030 415.901700 0.102336 3.55714 5.96
25.544070 535.863500 0.179088 3.48726 7.68 25.883800 303.412800
0.102336 3.44225 4.35 27.200370 321.682800 0.102336 3.27856 4.61
27.597540 179.014900 0.102336 3.23227 2.57 28.068430 126.035900
0.409344 3.17911 1.81 29.974950 124.045000 0.153504 2.98110 1.78
31.402190 89.293980 0.614016 2.84879 1.28 32.603460 118.588300
0.204672 2.74652 1.70 33.988800 247.854700 0.179088 2.63768 3.55
35.391040 161.830400 0.153504 2.53632 2.32
Example 3
[0225] SCY-078 Amorphous Freebase: To prepare SCY-078 amorphous
freebase, MeOH desolvate (50 mg) was added to a 3-mL vial. Then DCM
(0.5 mL) was added to the vial of MeOH desolvate. The resulting
solution of MeOH desolvate and DCM formed a clear solution. The
solution was evaporated to dryness from an open vial at 50.degree.
C.
[0226] The solid obtained after evaporation was characterized by
XRPD, TGA, DSC, and DVS. The XRPD pattern evidenced that the tested
sample is amorphous. The DSC and TGA curves of the amorphous sample
exhibited a glass transition at .about.189.1.degree. C. (FIG. 6).
The TGA curve demonstrated a weight loss of 4.2% before 150.degree.
C. The DVS curve demonstrated that the sample is hygroscopic with a
water uptake of .about.4.8% at 80% RH, 25.degree. C. An XRPD
pattern performed after DVS demonstrated no form change.
Example 4
[0227] Kinetic Solubility of SCY-078 Freebase: The kinetic
solubility of SCY-078 MeOH desolvate and SCY-078 amorphous freebase
was evaluated in SGF media, FaSSIF media, FeSSIF media, dextrose
buffer (pH 5.5), phosphate buffer (pH 6.0), and phosphate buffer
(pH 7.5) at room temperature. First, solid SCY-078 MeOH desolvate
or SCY-078 amorphous freebase (.about.15 mg) was weighed into a
4-mL vial. Then the relevant media (3.0 mL) was added and the
suspensions were stirred on a rolling incubator (25 rpm) at room
temperature for 1 hour, 4 hours, and 24 hours respectively. After
stirring, 0.5 mL of suspension was centrifuged and filtered (0.45
.mu.m). The residual solids were analyzed by XRPD, and the
supernatant was measured by HPLC and pH meter.
[0228] The results (Table 6) suggested that both the MeOH desolvate
and the amorphous freebase display high solubility in SGF and
FeSSIF. The results also showed that both the MeOH desolvate and
the amorphous freebase are only sparingly soluble in FaSSIF and pH
5.5, pH 6.0, and pH 7.5 buffers.
[0229] Solid form change was observed during the solubility
measurements of the MeOH desolvate in FeSSIF, FaSSIF, pH 5.5 and
6.0 buffers. Additionally, three new crystal forms were discovered
(Table 6). The three new forms are identified as New Form 1, 2, and
3.
TABLE-US-00029 TABLE 6 Kinetic solubility of SCY-078 freebase
Starting Time Solubility Solvent Form (hours) (mg/mL) pH Form SGF
Desolv..sup.$ 1 >5.3* 2.8 N/A 4 >5.3* 2.8 N/A 24 >5.3* 2.8
N/A Amorph. 1 >5.2* 2.1 N/A 4 >5.2* 2.2 N/A 24 >5.2* 2.2
N/A FeSSIF Desolv. 1 3.3 5.1 NF 1 4 3.5 5.1 NF 1 24 3.5 5.1 NF 1
Amorph. 1 3.0 5.1 Amorph. 4 3.7 5.1 Amorph. 24 3.8 5.1 Amorph.
FaSSIF Desolv. 1 ND 6.6 NF 1 4 ND 6.6 NF 1 24 ND 6.6 NF 1 Amorph. 1
0.017 6.6 Amorph. 4 <0.51 .mu.g/mL 6.6 Amorph. 24 ND 6.6 Amorph.
pH 5.5 Desolv. 1 N/A N/A N/A buffer 4 0.0008 7.2 NF 2 24 ND 7.1 NF
2 Amorph. 1 N/A N/A N/A 4 ND 6.8 Amorph. 24 ND 6.9 Amorph. pH 6.0
Desolv. 1 N/A N/A N/A buffer 4 0.045 6.2 NF 1 24 0.60 6.1 NF 3
Amorph. 1 N/A N/A N/A 4 <0.51 .mu.g/mL 6.1 Amorph. 24 0.0024 6.1
Amorph, pH 7.5 Desolv. 1 N/A N/A N/A buffer 4 0.0024 7.3 Desolv. 24
0.0025 7.4 Desolv. Amorph. 1 N/A N/A N/A 4 ND 7.4 Amorph. 24 ND 7.4
Amorph. *Clear solution was obtained NF: New Form ND: Not Detected
.sup.$MeOH desolvate N/A: Not available Desolv.: Desolvate Amorph.:
Amorphous
Example 5
[0230] Approximate Solubility of SCY-078 MeOH Desolvate: The
approximate solubility of SCY-078 MeOH desolvate was measured in 20
solvents at room temperature (25.+-.3.degree. C.). First, MeOH
desolvate (.about.2 mg) was added to a 3-mL glass vial. Then the
corresponding solvent was added step wise (1004) until the solution
was visually clear or a total volume of 2 mL was reached. The
results appear in Table 7.
TABLE-US-00030 TABLE 7 Approximate solubility of SCY-078 freebase
at RT Solvent Solubility (mg/mL) MeOH 5.4 < S < 6.3 EtOH 2.6
< S < 3.0 IPA 7.0 < S < 11.0 Acetic Acid S > 25.0
ACN 2.6 < S < 2.9 Acetone 8.3 < S < 12.5 MIBK S >
29.0 EtOAc S > 23.0 iPrOAc 10.5 < S < 21.0 MTBE S >
23.0 THF S > 23.0 2-MeTHF S > 25.0 1,4-Dioxane S > 37.0
NMP S > 45.0 DMSO S > 32.0 CHCl.sub.3 S > 33.0 Toluene 6.8
< S < 8.5 Heptane S < 2.2 DMA S > 40.0 H.sub.2O S <
1.9
Example 6
[0231] Salt Study of SCY-078 Freebase: A salt study of the SCY-078
MeOH desolvate freebase was performed using 108 different
conditions developed through 18 acids in 6 solvents (Table 8). The
salt study was performed by first preparing a solution of SCY-078
MeOH desolvate freebase and mixing with an equi-molar acid
solution. This solution was stirred at room temperature
overnight.
[0232] For precipitates, the solids were isolated and analyzed by
XRPD. Clear solutions were evaporated slowly to dryness at room
temperature.
[0233] The salt study (Table 8) showed that seven crystalline salts
(eight crystal forms) of SCY-078 were found: HCl Type A, citrate
Type A, hippurate Type A, fumarate Type A, fumarate Type B,
glycolate Type A, mesylate Type A, and Ca salt Type A. Four crystal
forms of SCY-078 freebase were discovered during the salt study and
were identified as freebase ("FB") Type A, B, C, and D.
TABLE-US-00031 TABLE 8 Solvent THF/H.sub.2O Acid EtOH (A) IPA (B)
ACN (C) Acetone (D) EtOAc (E) (19:1, v/v) (F) HCl oil oil HCl salt
HCl salt amorphous oil Type A Type A H.sub.3PO.sub.4 oil oil oil
oil oil oil Maleic Acid amorphous amorphous FB Type A amorphous
amorphous amorphous Citric Acid amorphous amorphous Citrate
amorphous FB Type A amorphous Type A Hippuric Acid FB Type B FB
Type B Hippurate Hippurate Hippurate Low Type A Type A Type A
crystallinity Adipic Acid amorphous FB Type A FB Type A FB Type C
amorphous amorphous Fumaric Acid amorphous amorphous Fumarate FB
Type D Fumarate amorphous Type A Type B Glutaric Acid amorphous FB
Type A FB Type A FB Type C FB Type A amorphous Glycolic Acid FB
Type B FB Type B FB Type B FB Type C FB Type B Glycolate Type A
D-Glutamic Acid MeOH FB Type A FB Type A FB Type C FB Type A
amorphous desolvate + acid Acetic Acid oil oil amorphous amorphous
amorphous oil Mucic Acid amorphous amorphous FB Type D FB Type D FB
Type D amorphous L-Malic Acid amorphous amorphous FB Type A FB Type
C FB Type A amorphous Benzoic Acid MeOH FB Type A FB Type A FB Type
C FB Type A amorphous Desolvate Methanesulfonic amorphous amorphous
FB Type B Mesylate FB Type B amorphous Acid Type A Malonic Acid
amorphous amorphous FB Type A amorphous FB Type A amorphous
Ethanesulfonic amorphous oil FB Type B FB Type B FB Type B
amorphous Acid Ca(OH).sub.2 Ca(OH).sub.2 Ca(OH).sub.2 FB Type A FB
Type C Ca(OH).sub.2 Ca salt Type A All the above salt formation
experiments were performed at RT using 1.0 mole equivalency of
acid. FB: freebase
Example 7
[0234] SCY-078 HCl Type A: SCY-078 HCl Type A prepared from the
salt study in Example 6 was characterized by XRPD, DSC, and TGA
(FIGS. 7-8). The resulting XRPD pattern evidenced that SCY-078 HCl
Type A is weakly crystalline and has a unique form as compared to
the freebase MeOH desolvate. The 2 theta and d-spacing values are
summarized in Table 9. The DSC curve displayed an endotherm at
48.5.degree. C. (onset temperature). The TGA curve showed a weight
loss of 14.4% before 130.degree. C.
TABLE-US-00032 TABLE 9 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.635436 167.080400
0.153504 15.68264 21.28 9.023307 62.106750 0.307008 9.80065 7.91
11.313240 785.111500 0.179088 7.82150 100.00 14.217720 329.207600
0.179088 6.22955 41.93 16.983670 169.700900 0.204672 5.22073 21.61
18.224350 96.247500 0.409344 4.86801 12.26 32.709530 91.332090
0.153504 2.73786 11.63
Example 8
[0235] SCY-078 Citrate Type A (Molar Equivalency--counter ion/API
1): SCY-078 citrate Type A prepared from the salt study in Example
6 was characterized by XRPD, DSC, and TGA (FIGS. 9-10). The
resulting XRPD pattern evidenced that SCY-078 citrate Type A is
crystalline and is a unique form compared to the freebase MeOH
desolvate. The 2 theta and d-spacing values are summarized in Table
10. The DSC curve displayed two endotherms at 36.2.degree. C. and
194.8.degree. C. (onset temperature). The TGA curve demonstrated
5.1% before 100.degree. C.
[0236] A sample was heated to 100.degree. C. and then cooled to
room temperature. XRPD was performed after heating and cooling to
room temperature. The resulting XRPD pattern showed that there was
no change in form. DSC and TGA characterization was also performed
after heating and cooling. The DSC curve demonstrated two
endotherms at 39.9.degree. C. and 194.8.degree. C. (onset
temperatures). The TGA curve showed a weight loss of 5.3% before
100.degree. C.
TABLE-US-00033 TABLE 10 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.448309 886.677500
0.140712 16.22084 29.56 7.551316 2999.844000 0.153504 11.70747
100.00 9.280401 338.350200 0.204672 9.52971 11.28 10.933390
532.481900 0.102336 8.09237 17.75 11.525650 1003.802000 0.140712
7.67783 33.46 12.550580 416.868300 0.204672 7.05304 13.90 13.236060
1150.251000 0.153504 6.68928 38.34 15.063710 476.465200 0.153504
5.88154 15.88 16.766510 1157.775000 0.204672 5.28786 38.59
18.032270 212.464400 0.153504 4.91943 7.08 19.686700 214.063600
0.307008 4.50959 7.14 22.220460 123.975800 0.153504 4.00077 4.13
30.421720 65.589230 0.358176 2.93833 2.19 34.915250 28.764450
0.614016 2.56979 0.96
Example 9
[0237] SCY-078 Hippurate Type A (Molar equivalency counter ion/API
2.0): SCY-078 hippurate Type A prepared from the salt study in
Example 6 was characterized by XRPD, DSC, and TGA (FIGS. 11-12).
The XRPD pattern of SCY-078 hippurate Type A indicated that the
sample is crystalline and has a unique form as compared to the
freebase MeOH desolvate. The DSC curve displayed three endotherms
at 36.3.degree. C., 104.6.degree. C., and 165.5.degree. C. (onset
temperatures) and one exotherm at 201.9.degree. C. (onset
temperature). The TGA curve showed a weight loss of 4.9% before
150.degree. C.
Example 10
[0238] SCY-078 Hippurate Type B: SCY-078 hippurate Type B is
produced from heating hippurate Type A to 150.degree. C. and then
cooling the sample to room temperature. SCY-078 hippurate Type B
was characterized by XRPD, DSC, and TGA (FIGS. 13-14). The XRPD
pattern showed that the sample is crystalline and a unique form
compared to SCY-078 hippurate Type A. The DSC curve displayed two
endotherms at 39.6.degree. C. and 166.4.degree. C. (onset
temperatures) and one exotherm at 201.4.degree. C. (onset
temperature). The TGA curve demonstrated a weight loss of 1.8%
before 150.degree. C.
Example 11
[0239] SCY-078 Hippurate Type C: Cycle DSC and XRPD were performed
to investigate the phase transition events during the
heating-cooling process of SCY-078 hippurate Type B (FIGS. 15-16).
The XRPD overlay and DSC curve suggested the melting point of
SCY-078 hippurate Type B at 163.9.degree. C. followed by amorphous
phase recrystallizing at 208.8.degree. C. and a new anhydrate phase
being formed. The new anhydrate phase is SCY-078 hippurate Type
C.
Example 12
[0240] SCY-078 Fumarate Type A (Molar equivalency counter ion/API
1.0): SCY-078 fumarate Type A prepared from the salt study in
Example 6 was characterized by XRPD, DSC, and TGA (FIGS. 17-18).
The XRPD pattern indicated that the sample is crystalline and a
unique form compared to the freebase MeOH desolvate. The DSC curve
of SCY-078 fumarate Type A showed an endotherm at 33.1.degree. C.
and a melting point at 207.3.degree. C. (onset temperature). The
TGA curve displayed a weight loss of 2.4% before 120.degree. C.
[0241] A sample of SCY-078 fumarate Type A was heated to
120.degree. C. and then allowed to cool to room temperature.
Characterization by XRPD, DSC, and TGA were then repeated. The XRPD
pattern displayed no form change after heating and cooling. The DSC
curve of heated-cooled SCY-078 fumarate Type A exhibited two
endotherms at 38.4.degree. C. and 207.1.degree. C. (onset
temperatures). The TGA curve of heated-cooled SCY-078 fumarate Type
A showed a weight loss of 2.0% before 120.degree. C.
Example 13
[0242] SCY-078 Fumarate Type B (Molar equivalency counter ion/API
0.8): SCY-078 fumarate Type B prepared from the salt study in
Example 6 was characterized by XRPD, DSC, and TGA (FIGS. 19-20).
The XRPD pattern of SCY-078 fumarate Type B indicated that the
sample is weakly crystalline and that it is a unique form compared
to the freebase MeOH desolvate. The DSC curve of SCY-078 fumarate
Type B showed two endotherms at 37.9.degree. C. and 178.5.degree.
C. (onset temperature). The TGA curve demonstrated a weight loss of
13.4% before 300.degree. C.
Example 14
[0243] SCY-078 Glycolate Type A (Molar equivalency counter ion/API
2.0): SCY-078 glycolate Type A prepared from the salt study in
Example 6 was characterized by XRPD, DSC, and TGA (FIGS. 21-22).
The XRPD pattern of SCY-078 glycolate Type A indicated that the
sample is crystalline and a unique form compared to the freebase
MeOH solvate. The DSC curve of the sample displayed two endotherms
at 35.9.degree. C. and 159.6.degree. C. (onset temperatures). The
TGA curve showed a weight loss of 6.6% before 100.degree. C.
Example 15
[0244] SCY-078 Mesylate Type A (Molar equivalency counter ion/API
1.0): SCY-078 mesylate Type A prepared from the salt study in
Example 6 was characterized by XRPD, DSC, and TGA (FIGS. 23-24).
The XRPD pattern indicated that the sample is crystalline and a
unique form compared to the freebase MeOH desolvate. The DSC curve
displayed an endotherm at 44.2.degree. C. and a melting point at
260.0.degree. C. (onset temperatures). The TGA showed a weight loss
of 4.5% before 120.degree. C.
[0245] Next, a sample of SCY-078 mesylate Type A was heated to
120.degree. C. and then allowed to cool to room temperature.
Characterization by XRPD, DSC, and TGA was then repeated. The XRPD
pattern displayed no form change after heating and cooling. The DSC
curve of the heated-cooled SCY-078 mesylate Type A exhibited an
endotherm at 59.7.degree. C. and a melting point at 257.4.degree.
C. (onset temperatures). The TGA curve of the heated-cooled SCY-078
mesylate Type A showed a weight loss of 9.4% before 120.degree.
C.
Example 16
[0246] SCY-078 Calcium Type A: SCY-078 calcium Type A prepared from
the salt study in Example 6 was characterized by XRPD, DSC, and TGA
(FIGS. 25-26). The XRPD pattern indicated that the sample is
crystalline and a unique form compared to the freebase MeOH
desolvate. The DSC curve displayed two endotherms at 147.3.degree.
C. and 230.8.degree. C. (onset temperatures). The TGA curve showed
a weight loss of 5.3% before 170.degree. C.
Example 17
[0247] Preparation and Characterization of Scaled-Up SCY-078
Hippurate Type B: To scale-up SCY-078 hippurate Type B, a solution
of hippuric acid (122.8 mg) and SCY-078 MeOH desolvate (500.3 mg)
in ACN (5.0 mL) was prepared. The suspension was then stirred (500
rpm) at room temperature for 28 hours. Following stirring, some
slurry was filtered and the isolated solid was checked by XRPD to
confirm SCY-078 hippurate Type A. The suspension was filtered and
dried at 150.degree. C. for 1 hour before characterization.
Finally, the solid was check by XRPD to confirm to SCY-078
hippurate Type B.
[0248] The scaled-up SCY-078 hippurate Type B was analyzed by XRPD,
DSC, TGA, and DVS (FIGS. 27-30). The resulting XRPD pattern
evidenced that SCY-078 hippurate Type B was successfully scaled up.
The 2 theta and d-spacing values are summarized in Table 11. The
DSC curve showed two endotherms at 34.5.degree. C. and
164.4.degree. C. and one exotherm at 205.2.degree. C. (onset
temperatures). The TGA curve showed a weight loss of 0.9% before
130.degree. C. The DVS curve showed that the sample is hygroscopic
with a water uptake of .about.3.5% at 25.degree. C. and 80% RH. A
second XRPD pattern performed after DVS showed SCY-078 hippurate
Type B converted to SCY-078 hippurate Type A after DVS
experiment.
TABLE-US-00034 TABLE 11 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.027072
11818.150000 0.051168 29.18766 100.00 5.916137 351.270000 0.102336
14.93916 2.97 6.916698 947.910600 0.102336 12.78016 8.02 7.251646
624.847700 0.076752 12.19059 5.29 8.761702 1828.733000 0.076752
10.09268 15.47 9.962105 2404.236000 0.102336 8.87907 20.34
10.897800 1593.408000 0.102336 8.11872 13.48 11.868550 552.254500
0.102336 7.45677 4.67 12.432300 2880.441000 0.127920 7.11988 24.37
12.857840 525.634600 0.076752 6.88518 4.45 13.091360 511.764400
0.115128 6.76288 4.33 13.709840 1112.219000 0.102336 6.45916 9.41
14.555290 3086.294000 0.153504 6.08582 26.11 14.984610 1215.693000
0.102336 5.91241 10.29 15.341160 506.870800 0.153504 5.77579 4.29
16.136210 1315.742000 0.089544 5.49296 11.13 16.453540 1710.358000
0.153504 5.38772 14.47 16.897030 606.324900 0.102336 5.24730 5.13
17.280760 1171.798000 0.127920 5.13164 9.92 17.591700 2258.867000
0.102336 5.04163 19.11 18.190770 538.754800 0.127920 4.87692 4.56
18.425670 516.831300 0.179088 4.81528 4.37 19.151570 950.084500
0.102336 4.63437 8.04 19.602330 487.956400 0.127920 4.52881 4.13
20.234760 861.917600 0.153504 4.38867 7.29 20.860030 424.598600
0.153504 4.25851 3.59 21.725360 459.496200 0.307008 4.09081 3.89
22.532320 498.240700 0.102336 3.94610 4.22 23.078810 380.947900
0.127920 3.85388 3.22 23.551950 208.488500 0.409344 3.77752 1.76
23.874020 377.598600 0.102336 3.72728 3.20 25.381750 351.553600
0.102336 3.50919 2.97 25.844490 207.070300 0.204672 3.44740 1.75
27.188450 192.463400 0.153504 3.27997 1.63 27.681830 144.369000
0.307008 3.22262 1.22 29.319670 172.870900 0.511680 3.04622 1.46
30.833510 86.432220 0.307008 2.90002 0.73 34.979000 90.330020
0.204672 2.56525 0.76 35.588330 69.479680 0.307008 2.52271 0.59
37.270360 55.666410 0.307008 2.41264 0.47
Example 18
[0249] Preparation and Characterization of Scaled-Up SCY-078
Fumarate Type A: To scale-up SCY-078 fumarate Type A, a solution of
fumaric acid (79.8 mg) and SCY-078 MeOH desolvate (501.9 mg) in ACN
(15.0 mL) was prepared. The suspension was then stirred (500 rpm)
at room temperature for 28 hours. Following stirring, some slurry
was filtered and the isolated solid was checked by XRPD to confirm
SCY-078 fumarate Type A. Finally, the suspension was filtered and
dried at 30.degree. C. for 4 hours in vacuum before
characterization.
[0250] Characterization of scaled-up SCY-078 fumarate Type A
included XRPD, DSC, TGA, and DVS (FIGS. 31-33). The resulting XRPD
pattern evidenced that SCY-078 fumarate Type A was successfully
scaled up. The 2 theta and d-spacing values are summarized in Table
12. The DSC curve showed an endotherm at 39.9.degree. C. and a
melting endotherm at 208.4.degree. C. (onset temperatures). The TGA
curve showed a weight loss of 1.7% before 150.degree. C. The DVS
curve showed that the sample is hygroscopic with a water uptake of
2.5% at 80% RH, 25.degree. C. A second XRPD pattern performed after
DVS showed SCY-078 fumarate Type A had no form change.
TABLE-US-00035 TABLE 12 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 6.708362 290.801200
0.153504 13.17659 2.14 7.779830 2540.992000 0.102336 11.36410 18.74
8.490587 13558.710000 0.127920 10.41433 100.00 9.362659 1986.519000
0.102336 9.44617 14.65 9.964151 661.033600 0.127920 8.87725 4.88
10.417770 2882.948000 0.115128 8.49171 21.26 10.694630 3478.282000
0.127920 8.27250 25.65 11.221780 3785.363000 0.140712 7.88504 27.92
11.875520 519.613200 0.153504 7.45241 3.83 12.271310 357.834700
0.127920 7.21292 2.64 13.008060 5831.607000 0.140712 6.80600 43.01
13.729940 1780.661000 0.127920 6.44975 13.13 14.640000 1169.640000
0.076752 6.05080 8.63 14.888350 2319.347000 0.078000 5.94549 17.11
14.955620 2471.802000 0.076752 5.92381 18.23 15.225230 1608.774000
0.089544 5.81951 11.87 16.171470 1276.652000 0.076752 5.48106 9.42
16.429100 2604.447000 0.140712 5.39569 19.21 16.942700 6000.498000
0.140712 5.23326 44.26 17.442280 1878.502000 0.063960 5.08448 13.85
17.749440 3552.116000 0.140712 4.99718 26.20 18.202980 2297.875000
0.127920 4.87368 16.95 18.928920 1597.690000 0.140712 4.68838 11.78
20.028870 591.031400 0.127920 4.43332 4.36 20.258840 480.204800
0.102336 4.38351 3.54 20.868380 1498.769000 0.127920 4.25683 11.05
21.397940 1555.987000 0.089544 4.15266 11.48 21.879750 1130.218000
0.127920 4.06229 8.34 22.217300 1475.131000 0.102336 4.00133 10.88
22.591130 913.600300 0.102336 3.93596 6.74 23.385000 425.684600
0.153504 3.80411 3.14 23.950880 915.135300 0.204672 3.71550 6.75
24.627720 245.047100 0.153504 3.61490 1.81 25.499420 1445.187000
0.089544 3.49326 10.66 26.148510 509.814300 0.179088 3.40800 3.76
26.502880 512.161300 0.127920 3.36323 3.78 26.881710 614.926800
0.153504 3.31669 4.54 27.716900 269.647600 0.255840 3.21862 1.99
28.552140 414.549300 0.153504 3.12634 3.06 29.217330 471.259100
0.153504 3.05666 3.48 29.558860 525.910500 0.204672 3.02211 3.88
30.043740 270.781000 0.204672 2.97444 2.00 30.962340 570.115500
0.307008 2.88825 4.20 33.133860 264.449500 0.179088 2.70376 1.95
33.967430 212.730600 0.179088 2.63929 1.57 34.456190 314.358700
0.179088 2.60297 2.32 35.316070 163.009400 0.179088 2.54153 1.20
35.928310 161.442300 0.307008 2.49962 1.19 37.556590 162.885200
0.153504 2.39491 1.20
Example 19
[0251] Preparation and Characterization of Scaled-Up SCY-078
Mesylate Type A: To scale up SCY-078 mesylate Type A, a solution of
methanesulfonic acid (66.7 mg) and SCY-078 MeOH desolvate (500.00
mg) in ACN (6.0 mL) was prepared. The suspension was then stirred
(500 rpm) at room temperature for 28 hours. Following stirring,
some slurry was filtered and the isolated solid was checked by XRPD
to confirm to SCY-078 mesylate Type A. Finally, the suspension was
filtered and dried at 30.degree. C. for 4 hours in vacuum before
characterization.
[0252] Characterization of scaled-up SCY-078 mesylate Type A
included XRPD, DSC, TGA, and DVS (FIGS. 34-36). The resulting XRPD
pattern evidenced that SCY-078 mesylate Type A was successfully
scaled up. The 2 theta and d-spacing values are summarized in Table
13. The DSC curve showed an endotherm at 45.1.degree. C. and a
melting endotherm at 252.5.degree. C. (onset temperatures). The TGA
curve showed a weight loss of 5.5% before 150.degree. C. The DVS
curve showed that the sample is hygroscopic with a water uptake of
11.5% at 25.degree. C. and 80% RH. A second XRPD pattern performed
after DVS showed SCY-078 mesylate Type A had no form change.
TABLE-US-00036 TABLE 13 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.460873
6386.923000 0.076752 25.53007 100.00 5.977580 779.662100 0.063960
14.78574 12.21 7.966391 2528.494000 0.089544 11.09839 39.59
9.108506 1390.758000 0.089544 9.70916 21.78 9.950825 1211.786000
0.102336 8.88911 18.97 11.611990 1031.845000 0.076752 7.62094 16.16
11.923410 791.823600 0.102336 7.42258 12.40 12.425240 1268.865000
0.089544 7.12391 19.87 13.944550 688.156900 0.102336 6.35096 10.77
14.380410 848.725700 0.102336 6.15943 13.29 14.769580 2671.218000
0.089544 5.99800 41.82 15.556400 1399.797000 0.102336 5.69636 21.92
15.933420 664.503200 0.102336 5.56241 10.40 16.662350 540.586700
0.102336 5.32067 8.46 17.361270 955.468500 0.127920 5.10802 14.96
18.265030 453.378300 0.153504 4.85726 7.10 18.734480 812.380000
0.102336 4.73660 12.72 19.019690 850.304100 0.102336 4.66621 13.31
19.260210 762.325000 0.153504 4.60847 11.94 19.645310 613.773700
0.127920 4.51900 9.61 20.566280 436.518500 0.127920 4.31867 6.83
21.974920 571.254200 0.127920 4.04491 8.94 22.483420 374.000100
0.255840 3.95457 5.86 24.101950 210.447500 0.153504 3.69255 3.29
25.009440 137.497300 0.204672 3.56058 2.15 26.043990 151.416700
0.204672 3.42144 2.37 27.012060 72.724460 0.307008 3.30098 1.14
28.443410 214.270100 0.153504 3.13804 3.35 34.283540 45.493190
0.511680 2.61568 0.71
Example 20
[0253] Preparation and Characterization of Scaled-Up SCY-078
Phosphate Type A: To scale up SCY-078 phosphate Type A, a solution
of phosphoric acid (87.2 mg) and SCY-078 MeOH desolvate (501.1 mg)
in EtOH/EtOAc/acetic acid/H.sub.2O (6.0 mL, 5:3:0.15:0.1; v/v/v/v)
was prepared. The suspension was then stirred (500 rpm) at room
temperature for 28 hours. Following stirring, some slurry was
filtered and the isolated solid was checked by XRPD and named as
SCY-078 phosphate Type A. Finally, the suspension was filtered and
dried at 30.degree. C. for 4 hours in vacuum before
characterization.
[0254] Characterization of scaled-up SCY-078 phosphate Type A
included XRPD, DSC, TGA, and DVS (FIGS. 37-39). The XRPD pattern of
the scaled-up SCY-078 phosphate Type A was compared with another
phosphate sample. The comparison XRPD pattern evidenced certain
peak shifts, which are signaled with an asterisk. The 2 theta and
d-spacing values of SCY-078 phosphate Type A are summarized in
Table 14. The DSC curve showed two endotherms at 43.5.degree. C.
and 261.6.degree. C. (onset temperatures). The TGA curve showed a
weight loss of 5.7% before 100.degree. C. The DVS curve showed that
the sample is hygroscopic with a water uptake of 12.5% at
25.degree. C. and 80% RH. A second XRPD pattern performed after DVS
showed SCY-078 phosphate Type A had no form change.
TABLE-US-00037 TABLE 14 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 3.510749
3822.958000 0.063960 25.16747 100.00 3.777221 1538.172000 0.089544
23.39256 40.24 6.351771 817.179700 0.089544 13.91551 21.38 6.974826
213.577600 0.153504 12.67379 5.59 7.884021 2248.860000 0.089544
11.21415 58.83 8.064520 922.909900 0.076752 10.96356 24.14 9.551988
811.444000 0.179088 9.25936 21.23 9.893185 731.339200 0.127920
8.94077 19.13 11.410930 713.463600 0.153504 7.75476 18.66 11.807790
1002.811000 0.127920 7.49500 26.23 12.234010 806.819600 0.153504
7.23483 21.10 12.657670 895.228700 0.127920 6.99361 23.42 14.562960
1550.900000 0.102336 6.08263 40.57 15.413370 939.681700 0.204672
5.74889 24.58 15.841220 831.733000 0.307008 5.59457 21.76 17.560630
1113.197000 0.409344 5.05048 29.12 18.775820 475.510700 0.153504
4.72626 12.44 20.576380 320.212100 0.307008 4.31657 8.38 22.143260
373.653900 0.204672 4.01454 9.77
Example 21
[0255] Preparation and Characterization of Scaled-Up SCY-078
Citrate Type A (Molar Equivalency--counter ion/API 1.0): To scale
up SCY-078 citrate Type A, a solution of citric acid (130.7 mg) and
SCY-078 MeOH desolvate (501.6 mg) in ACN (15.0 mL) was prepared.
The suspension was then stirred (500 rpm) at room temperature for
30 hours. Following stirring, some slurry was filtered and the
isolated solid was checked by XRPD to confirm SCY-078 citrate Type
A. Finally, the suspension was filtered and dried at 30.degree. C.
for 4 hours in vacuum before characterization.
[0256] Characterization of scaled-up SCY-078 citrate Type A
included XRPD, DSC, TGA, and DVS (FIGS. 40-42). XRPD pattern
evidenced that SCY-078 citrate Type A was successfully scaled up.
The 2 theta and d-spacing values are summarized in Table 15. The
DSC curve showed an endotherm at 38.5.degree. C. and a melting
endotherm at 183.7.degree. C. (onset temperatures). The TGA curve
showed a weight loss of 4.1% before 110.degree. C. The DVS curve
showed that the sample is hygroscopic with a water uptake of 6.4%
at 80% RH, 25.degree. C. A second XRPD pattern performed after DVS
showed SCY-078 citrate Type A had no form change.
TABLE-US-00038 TABLE 15 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.448098
1112.016000 0.102336 16.22147 25.78 7.430264 4314.252000 0.153504
11.89794 100.00 8.687142 329.877800 0.153504 10.17913 7.65 9.219851
511.870400 0.153504 9.59216 11.86 9.657531 424.140300 0.255840
9.15840 9.83 10.883410 1078.439000 0.051168 8.12942 25.00 11.515250
2094.987000 0.115128 7.68474 48.56 13.187380 2396.469000 0.089544
6.71386 55.55 14.126680 799.280200 0.255840 6.26949 18.53 14.845300
757.431100 0.230256 5.96758 17.56 16.818410 2913.176000 0.127920
5.27165 67.52 18.364160 492.518400 0.153504 4.83127 11.42 19.381840
490.181800 0.307008 4.57983 11.36 20.774420 185.062500 0.307008
4.27587 4.29 22.213250 308.712600 0.204672 4.00205 7.16 23.587350
109.338400 0.818688 3.77193 2.53 29.871450 85.095400 0.307008
2.99120 1.97
Example 22
[0257] Chemical Characterization of SCY-078 Salts: The chemical
purity of each of the scaled-up salts of SCY-078 (hippurate Type B,
fumarate Type A, mesylate Type A, phosphate Type A, and citrate
Type A) was tested using HPLC chromatographs. The chromatographs of
the five compounds indicated that each compound has purity greater
than 99% (Table 16).
TABLE-US-00039 TABLE 16 Chemical Characterization of SCY-078 Salts
Compound Purity Hippurate Type B 99.19 Fumarate Type A 99.90
Mesylate Type A 99.91 Phosphate Type A 99.91 Citrate Type A
99.89
Example 23
[0258] Evaluation of the pH Value of SCY-078 Salts in Water: The pH
value for the saturated salt solutions of SCY-078 (i.e., hippurate
Type B, fumarate Type A, mesylate Type A, phosphate Type A, and
citrate Type A) was tested. To test the pH, a solution of each
compound was equilibrated at room temperature using a rolling
incubator (25 rpm) for 1 hour and 24 hours before measurement. The
results (Table 17) suggested that the pH values of each of the
salts tested is in the range of 3.0 to 5.0.
TABLE-US-00040 TABLE 17 pH value of saturated SCY-078 salt
solutions in H.sub.2O Salt Form pH 1 hr pH 24 hrs Hippurate Type B
4.6 4.2 Fumarate Type A 4.4 3.8 Mesylate Type A 3.4 3.6 Phosphate
Type A 3.4 3.6 Citrate Type A 3.5 3.8
Example 24
[0259] Evaluation of the Kinetic Solubility of SCY-078 Salts: The
kinetic solubilities of SCY-078 hippurate Type B, SCY-078 fumarate
Type A, SCY-078 mesylate Type A, SCY-078 phosphate Type A, and
SCY-078 citrate Type A were measured in dextrose buffer at pH 5.5,
phosphate buffer at pH 6.0, phosphate buffer at pH 7.5, SGF media,
FeSSIF media, and FaSSIF media according to the method described
above. After filtration, 0.2 mL of supernatant was collected for
HPLC quantification. The remaining solution was collected for pH
measurement. The remaining solid was collected for XRPD
characterization. The results appear in Table 18.
TABLE-US-00041 TABLE 18 Kinetic Solubility (mg/mL) of SCY-078 salts
Time Hippurate Fumarate Mesylate Phosphate Citrate Media (hours)
Type B Type A Type A Type A Type A dextrose buffer 1 hr 0.54 0.05
1.4 0.10 0.67 (pH 5.5) 4 hrs 1.7 0.46 2.5 0.09 4.2 24 hrs 4.4 2.1
4.3 0.04 8.3 phosphate buffer 1 hr <LOQ 0.07 0.16 <LOQ 0.75
(pH 6.0) 4 hrs 0.04 1.2 0.13 <LOQ 4.7 24 hrs 0.47 4.7 0.04
<LOQ 7.5 phosphate buffer 1 hr <LOQ <LOQ <LOQ <LOQ
<LOQ (pH 7.5) 4 hrs <LOQ <LOQ <LOQ <LOQ <LOQ 24
hrs <LOQ <LOQ <LOQ <LOQ <LOQ SGF 1 hr 12.4 13.4 17.8
9.2 20.6 4 hrs 15.0 17.7 20.5 16.0 21.4 24 hrs 21.8 23.4 22.5 21.2
21.1 FeSSIF 1 hr 3.4 2.2 1.2 0.89 0.39 4 hrs <LOQ 0.51 1.5 1.3
2.5 24 hrs 0.003 0.02 1.6 1.5 4.2 FaSSIF 1 hr <LOQ <LOD
<LOQ 0.006 9.5 4 hrs 0.0007 2.8 0.29 0.17 20.7 24 hrs <LOQ
17.0 0.44 1.0 21.6 LOD: 0.07 .mu.g/mL LOQ: 0.22 .mu.g/mL
Example 25
[0260] Evaluation of the Stability of SCY-078 Salts: To test the
chemical and physical stability of the salts, samples of the salts
were placed under three different conditions for one week: (1) open
dish at 25.degree. C. with 60% RH; (2) open dish at 40.degree. C.
with 75% RH; and (3) closed dish at 60.degree. C. with no humidity
control.
[0261] The chemical and physical stability of SCY-078 fumarate Type
A and SCY-078 citrate Type A were tested as described above (Table
19). XRPD indicated that neither SCY-078 fumarate Type A nor
SCY-078 citrate Type A experienced form change during
assessment.
TABLE-US-00042 TABLE 19 Stability result of SCY-078 salts Impurity
% Sample Condition by HPLC Citrate Initial 0.34 Type A 25.degree.
C./60% RH - 1 week 0.09 40.degree. C./75% RH - 1 week 0.10
60.degree. C. - 1 week 0.17 Fumarate Initial 0.12 Type A 25.degree.
C./60% RH - 1 week 0.09 40.degree. C./75% RH - 1 week 0.10
60.degree. C. - 1 week 0.10
Example 26
[0262] Scaled-up SCY-078 Citrate Type A: A second scale-up of
SCY-078 Citrate Type A was carried out to obtain 2.5 g via reactive
ACN. To scale-up, SCY-078 MeOH desolvate (2.5 g) and citric acid
(660 mg) were dissolved in ACN (80 mL). The resulting solution was
stirred at a rate of 1000 rpm at room temperature for 30 hours and
then the solid was isolated. The solid obtained was dried at
50.degree. C. under vacuum overnight.
[0263] An XRPD pattern (FIG. 43) showed that SCY-078 citrate Type A
was successfully scaled up and that it is highly crystalline. The 2
theta and d-spacing values are summarized in Table 20. DSC curve
(FIG. 44) exhibited two endothermic peaks at 56.7.degree. C. and
187.1.degree. C. (onset temperatures). TGA curve (FIG. 44) showed
7.9% weight loss before 150.degree. C.
TABLE-US-00043 TABLE 20 Pos. Height FWHM Left d-spacing Rel. Int.
[.degree.2Th.] [cts] [.degree.2Th.] [.ANG.] [%] 5.400273 434.322700
0.102336 16.36502 3.34 7.453872 13000.820000 0.191880 11.86031
100.00 9.201639 691.948300 0.204672 9.61110 5.32 10.831710
404.555000 0.153504 8.16811 3.11 11.485080 936.115200 0.179088
7.70486 7.20 12.491050 954.805500 0.179088 7.08652 7.34 13.191360
1776.320000 0.204672 6.71184 13.66 15.020350 1342.537000 0.204672
5.89842 10.33 15.664830 532.278900 0.179088 5.65717 4.09 15.955570
613.057500 0.127920 5.55474 4.72 16.751250 951.729000 0.153504
5.29264 7.32 17.978130 170.323300 0.204672 4.93412 1.31 19.591770
472.971000 0.204672 4.53123 3.64 22.213400 146.982900 0.204672
4.00202 1.13 23.845740 34.469910 0.614016 3.73164 0.27 25.160050
117.741100 0.307008 3.53961 0.91 28.761350 129.234400 0.255840
3.10407 0.99 30.356250 332.945100 0.230256 2.94452 2.56 32.317870
87.151140 0.307008 2.77014 0.67 34.725480 74.664570 0.511680
2.58339 0.57
Example 27
[0264] Approximate Solubility of SCY-078 Citrate Type A: The
approximate solubility of SCY-078 citrate Type A from Example 26
was determined in 19 solvents at room temperature (25.+-.3.degree.
C.) according to the procedure described above and is reported in
Table 21 below.
TABLE-US-00044 TABLE 21 Solvent Solubility (mg/mL) MeOH >42.4
EtOH <1.0 IPA >40.0 Acetic Acid >41.0 ACN <1.1 Acetone
1.6 < S < 1.7 MIBK <1.0 EtOAc <1.0 IPAc <1.1 MTBE
<1.0 THF >41.0 2-MeTHF >41.8 1,4-Dioxane >41.0 NMP
>40.6 DMSO >40.6 DCM <1.0 Toluene <1.0 Heptane <1.1
DMAc >40.8
Example 28
[0265] Kinetic Solubility of SCY-078 Citrate Type A in Water: The
kinetic solubility of SCY-078 citrate Type A from Example 26 was
evaluated according to the procedure described above. After the
samples were centrifuged, the residual solids analyzed by XRPD and
the supernatant concentration measured by HPLC. Results (Table 22)
indicated that SCY-078 citrate Type A partially converted to
amorphous in water after 24 hours, and exhibited a slow rate of
dissolution and increasing solubility in water from 1 hour to 24
hours.
TABLE-US-00045 TABLE 22 Kinetic Solubility of SCY-078 citrate Type
A in Water Initial 1 hr 4 hrs 24 hrs pH 8.0 3.3 3.3 3.4 Solubility
(mg/mL) 18.6 26.7 41.4 Form Citrate Citrate Citrate Citrate Type A
+ Type A Type A Type A amorphous
[0266] Then the kinetic solubility of SCY-078 citrate Type A was
compared with a mixture of SCY-078 amorphous freebase/citric acid.
The kinetic solubility comparison was conducted in water at room
temperature and was measured at 1 hour, 4 hours, and 24 hours with
a ratio of solute to solvent of 20 mg/mL and 50 mg/mL. Results
(Table 23) indicated that SCY-078 citrate Type A shows higher
dissolution rate and equilibrium solubility in water than the
mixture of SCY-078 amorphous freebase/citric acid.
TABLE-US-00046 TABLE 23 Kinetic solubility comparison between
mixture of SCY- 078 freebase/citric acid and SCY-078 citrate Type A
Solubility Starting Material Time pH XRPD Form (mg/ML) Freebase
Citric Acid 20 1 hr 2.7 Amorphous 3.0 mg/mL 4 hrs 2.9 Amorphous 5.1
24 hrs 3.5 Amorphous 10.1 Freebase Citric Acid 50 1 hr 2.7
Amorphous 2.9 mg/mL 4 hrs 2.8 Amorphous 16.8 24 hrs 3.2 Amorphous
28.1 Citrate Type A 20 mg/mL 1 hr 3.5 Citrate Type A 3.5 4 hrs 3.4
Citrate Type A 8.3 24 hrs 3.3 Citrate Type A 17.0 Citrate Type A 50
mg/mL 1 hr 3.4 Citrate Type A 6.5 4 hrs 3.3 Citrate Type A 14.5 24
hrs 3.2 Citrate Type A 33.9
[0267] The remaining solids from the solubility measurement of
physical mixture of freebase:citric acid at 1:1 molar ratio in
water were amorphous. To determine the form of the amorphous,
liquid NMR was performed on a Bruker 400M NMR Spectrometer using
CD.sub.3OD. The spectrum showed the number of hydrogen atoms
assigned to citric acid as 3.12, corresponding to 0.78 equivalent
of citric acid. This is less than 1:1 for mono-citrate and suggests
it is a mixture that comprises a majority of amorphous citrate salt
with a small quantity of amorphous freebase.
Example 29
[0268] Equilibrium Solubility of SCY-078 Salts in Water:
Equilibrium solubility of SCY-078 citrate Type A from Example 26 in
water was determined using the method described above. Results
showed that SCY-078 citrate Type A exhibits 38.1 mg/mL solubility
in water with the undissolved material having become amorphous
after stirring in water for 24 hours.
[0269] Then to further study the solubility of SCY-078 citrate Type
A in water, citrate Type A was tested for 24 hours at three ratios
of solute to solvent: 0.3 mg/mL, 2.0 mg/mL, and 50.6 mg/mL. Each
test used magnetic stirring and began with an initial pH of 8.0.
The results (Table 24) indicated that SCY-078 citrate Type A
exhibits a concentration-dependent solubility in water.
TABLE-US-00047 TABLE 24 Concentration dependent solubility of
SCY-078 citrate Type A in water Ratio of Solid/ Solubility after
Solvent (mg/mL) 24 hrs (mg/mL) Final pH 0.3 <0.3 (suspension)
5.1 2.0 >2.0 (clear) 4.2 50.6 38.1 3.4
Example 30
[0270] Kinetic Solubility of SCY-078 Citrate Amorphous in Water:
SCY-078 citrate amorphous was prepared under various conditions,
including lyophilization from phosphate buffer (pH 6.0),
lyophilization from water, and fast evaporation in THF. The results
appear in Table 25. Where the table indicates "limited solid,"
there was not sufficient solid for XRPD analysis of the solid
form.
[0271] Lyophilization in phosphate buffer (pH 6.0)--For
lyophilization in phosphate buffer (pH 6.0), SCY-078 citrate
amorphous was prepared by first preparing 50 mM pH 6.0 buffer. Then
citrate Type A (30 mg) was weighed into a 20-mL vial. Then pH 6.0
buffer (20 mL) was added to the vial and was stirred at room
temperature for 24 hours. The samples were filtered and the
supernatant was cooled to -15.degree. C. for 2 hours. Finally, the
frozen samples were lyophilized at -50.degree. C. for 12 hours. A
larger batch (150 mg) was prepared using the same procedure noted
above. The kinetic solubility of the second batch of the
lyophilized product in water was measured according to the above
procedure except that .about.150 mg of solid and 1.0 mL of water
were used. After the samples were centrifuged, the residual solids
were analyzed by XRPD and the supernatant concentration was
measured by HPLC.
[0272] Lyophilization in water--For lyophilization in water,
amorphous citrate was prepared by first weighing citrate Type A
(.about.150 mg) into a 20-mL vial. Then 10 mL of water was added to
dissolve the solid completely. The solution was filtered and put in
a condition of -20.degree. C. until it froze. Finally, the sample
was lyophilized under -50.degree. C. for 24 hours. The kinetic
solubility of the lyophilized product in water was measured
according to the above procedure except that .about.120 mg of solid
and 1.5 mL of water were used. After the samples were centrifuged,
the residual solids were analyzed by XRPD and the supernatant
concentration was measured by HPLC.
[0273] Fast Evaporation in THF--For fast evaporation in THF,
amorphous citrate was prepared by first weighing citrate Type A
from Example 26 (.about.150 mg) into a 20-mL vial. Then THF (3 mL)
was added to dissolve the solid completely. The solution was
filtered under a fume hood for performance of fast evaporation. The
kinetic solubility in water of the product in water was measured
according to the above procedure except that .about.120 mg of solid
and 1.5 mL of water were used. After the samples were centrifuged,
the residual solids were analyzed by XRPD and the supernatant
concentration was measured by HPLC.
TABLE-US-00048 TABLE 25 Kinetic solubility of amorphous SCY-078
citrate in water Solubility Starting Solid Time (mg/mL) pH Form
Lyophilization in 1 hr 0.14 5.1 Amorphous pH 6.0 buffer 4 hrs 0.39
5.1 Amorphous 24 hrs 1.5 5.1 Amorphous Lyophilization in 1 hr 55.4
3.1 Amorphous water (pH 8.0) 4 hrs 54.7 3.3 NA 24 hrs 55.5 3.2 NA
Fast evaporation 1 hr 44.5 3.2 Amorphous in THF (pH 8.0) 4 hrs 50.2
3.2 NA 24 hrs 52.8 3.2 NA NA: Limited solid for XRPD
Example 31
[0274] Slow Evaporation of SCY-078 Citrate Type A: Slow evaporation
experiments were performed in 12 different solvent systems. SCY-078
citrate Type A from Example 26 (10 mg) was dissolved with solvent
(0.05 mL-0.25 mL) for each sample in a 3-mL glass vial. The
visually clear solutions were subjected to slow evaporation at room
temperature to dryness. The solids obtained were then isolated for
XRPD analysis, which showed that no crystalline form was obtained.
The results appear in Table 26.
TABLE-US-00049 TABLE 26 Slow evaporation experiments Solvent Form
MeOH Amorphous IPA Amorphous Acetic Acid Amorphous THF Amorphous
MeOH/ACN, 9/1 Amorphous IPA/Acetone, 9/1 Amorphous THF/EtOAc, 9/1
Amorphous MeOH/H.sub.2O, 9/1 Amorphous THF/Acetone, 9/1 Amorphous
IPA/DCM, 9/1 Amorphous MeOH/MTBE, 9/1 Amorphous THF/EtOH, 9/1
Amorphous
Example 32
[0275] Slurry Conversion of SCY-078 Citrate Type A: Slurry
conversion experiments were conducted under 50 conditions. SCY-078
citrate Type A from Example 26 (.about.10 mg) was suspended in each
solvent (0.5 mL). The suspensions were stirred for 3 days at either
room temperature (Table 27) or 50.degree. C. (Table 28). After
stirring, the solids were isolated for XRPD analysis. If the
suspensions turned into clear solutions upon slurry, the clear
solutions were subjected to slow evaporation at room temperature.
The results revealed that SCY-078 citrate Type B and mixtures of
SCY-078 citrate Type A and SCY-078 citrate Type B were discovered.
All SCY-078 citrate Type C that was discovered was identified as
freebase form.
TABLE-US-00050 TABLE 27 Slurry conversion experiments at RT Solvent
Form EtOH Type B ACN Type B Acetone Type B MIBK Type B EtOAc Type B
IPAc Type B MTBE Amorphous 1,4-Dioxane Amorphous via slow
evaporation DCM Type B Toluene Type B Heptane Type B MeOH/Acetone,
1/19 Type B IPA/Heptane, 1/19 Type B THF/Toluene, 1/19 Type B
NMP/EtOH, 1/19 Amorphous NMP/Acetone, 1/19 Amorphous NMP/IPAc, 1/19
Amorphous NMP/DCM, 1/19 Type C DMSO/ACN, 1/19 Type C DMSO/MIBK,
1/19 Type C DMSO/EtOAc, 1/19 Type C DMSO/Toluene, 1/19 Type C
DMAc/EtOH, 1/19 Type C DMAc/Acetone, 1/19 Type C DMAc/MTBE, 1/19
Type C
TABLE-US-00051 TABLE 28 Slurry conversion experiments at 50.degree.
C. Solvent Form EtOH Type B ACN Type B Acetone Type A + B MIBK Type
B EtOAc Amorphous IPAc Type B MTBE Amorphous 1,4-Dioxane Amorphous
via slow evaporation DCM Type B Toluene Type A + B Heptane Type B
MeOH/Acetone, 1/19 Type A + B IPA/Heptane, 1/19 Type B THF/Toluene,
1/19 Type A + B NMP/EtOH, 1/19 Amorphous NMP/Acetone, 1/19
Amorphous NMP/IPAc, 1/19 Amorphous NMP/DCM, 1/19 Amorphous
DMSO/ACN, 1/19 Type C DMSO/MIBK, 1/19 Type C DMSO/EtOAc, 1/19 Type
C DMSO/Toluene, 1/19 Type C DMAc/EtOH, 1/19 Amorphous DMAc/Acetone,
1/19 Type C DMAc/MTBE, 1/19 Type C
Example 33
[0276] Reverse Anti-solvent addition of SCY-078 citrate Type A:
Reverse anti-solvent addition experiments were conducted under 14
conditions. SCY-078 citrate Type A from Example 26 (.about.10 mg)
was dissolved in each solvent (0.1 mL) to obtain a clear solution.
This solution was added drop-wise into a glass vial containing 2.0
mL of each anti-solvent at room temperature. The precipitate was
isolated for XRPD analysis. Slow evaporation experiments were
conducted for the clear solutions. The results, which appear in
Table 29, suggested that SCY-078 citrate Type E and SCY-078 citrate
Type F were obtained. SCY-078 citrate Type D and SCY-078 citrate
Type J were identified as freebase form.
TABLE-US-00052 TABLE 29 Reverse anti-solvent addition experiments
at RT Anti- Solvent solvent Observation Form MeOH IPAc
Precipitation Type E MeOH DCM Clear Amorphous via slow evaporation
IPA EtOH Clear Clear solution after slow evaporation RT for 2 weeks
IPA MTBE Precipitation Amorphous IPA Toluene Precipitation Type F
THF ACN Precipitation Type D THF MIBK Precipitation Amorphous THF
Heptane Precipitation Amorphous NMP ACN Clear Clear solution after
slow evaporation at RT for 2 weeks NMP Toluene Clear Clear solution
after slow evaporation at RT for 2 weeks DMSO EtOH Clear Type J
DMSO DCM Clear Amorphous via slow evaporation DMAc DCM Clear
Amorphous via slow evaporation DMAc Toluene Clear Clear solution
after slow evaporation at RT for 2 weeks
Example 34
[0277] Solid vapor diffusion of SCY-078 Citrate Type A: Solid vapor
diffusion experiments were conducted using four solvents at room
temperature. SCY-078 citrate Type A from Example 26 (.about.-10 mg)
was placed into a 3-mL glass vial. Then the vial was sealed into a
20-mL glass vial with a solvent (3 mL). The system was kept at room
temperature for six days, which was sufficient time for organic
vapor to interact with the solids. The solids were characterized by
XRPD to identify crystalline forms. The results (Table 30)
indicated that SCY-078 citrate Type A and SCY-078 citrate Type B
were generated.
TABLE-US-00053 TABLE 30 Solid vapor diffusion experiments Solvent
Form EtOH Type A EtOAc Type B Acetone Type A DCM Type A
Example 35
[0278] Solution vapor diffusion of SCY-078 Citrate Type A: Solution
vapor diffusion experiments were conducted under 5 conditions at
room temperature. SCY-078 citrate Type A from Example 26 (.about.10
mg) was dissolved in a solvent to obtain a clear solution in a 3-mL
glass vial. The vial was then sealed into a 20-mL glass vial with a
volatile anti-solvent (3 mL). The system was kept at room
temperature for six days, which allowed sufficient time for
precipitation. As no precipitation was observed, the samples were
evaporated slowly to dryness at room temperature. The solids were
separated and analyzed by XRPD. The results (Table 31) indicated
that no crystalline form was obtained.
TABLE-US-00054 TABLE 31 Solution vapor diffusion experiments Anti-
Solvent solvent Observation Form Acetic Acid EtOH Clear Amorphous
via slow evaporation DMSO Acetone Clear Amorphous via slow
evaporation DMAc IPAc Clear Clear solution after slow evaporation
at RT for 2 weeks IPA DCM Clear Amorphous via slow evaporation NMP
MTBE Clear Clear solution after slow evaporation at RT for 2
weeks
Example 36
[0279] Polymer Induced Crystallization of SCY-078 Citrate Type A:
Polymer induced crystallization experiments were performed under
four conditions. SCY-078 citrate Type A from Example 26 (.about.10
mg) was dissolved in a solvent (0.1 mL-0.8 mL) in a 3-mL glass
vial. A mixed polymer (.about.1.0 mg) was added into the visually
clear solutions. The "mixed polymer" was a mixture of six polymers
(polyvinyl alcohol, polyvinylchloride, polyvinyl pyrrolidone,
polyvinyl acetate, hypromellose, and methyl cellulose) at the mass
ration of 1.0. All the samples were then evaporated slowly at room
temperature to dryness. The solids obtained were isolated for XRPD
analysis. The results (Table 32) showed that no crystalline form
was observed.
TABLE-US-00055 TABLE 32 Polymer induced crystallization experiments
Solvent Form MeOH Amorphous THF Amorphous 1,4-Dioxane Amorphous
MeOH/EtOH, 9/1 Amorphous MeOH/Acetone, 9/1 Amorphous
Example 37
[0280] Slow cooling of SCY-078 Citrate Type A: Slow cooling
experiments were conducted under 10 conditions (Table 33). SCY-078
citrate Type A from Example 26 (.about.10 mg) was suspended in a
solvent (0.1 mL-0.2 mL) at 50.degree. C. Suspensions were filtered
at 50.degree. C., and the filtrates were collected and cooled from
50.degree. C. to 5.degree. C. at a rate of 0.1.degree. C./min. All
solutions were clear and subjected to slow evaporation at room
temperature to induce precipitation. The solids were isolated for
XRPD analysis. The results (Table 33) indicated that SCY-078
citrate Type C and SCY-078 citrate Type J were produced and that
both SCY-078 citrate Type C and SCY-078 citrate Type J are freebase
forms.
TABLE-US-00056 TABLE 33 Slow Cooling Experiments Observation
Solvent, v/v (5.degree. C.) Form MeOH/Toluene, Clear Amorphous 9/1
IPA/ACN, 9/1 Clear Amorphous IPA/EtOAc, 9/1 Clear Amorphous
THF/Toluene, 9/1 Clear Amorphous THF/DCM, 9/1 Clear Amorphous
NMP/MTBE, 9/1 Clear Amorphous DMSO/Acetone, Clear Type C 9/1
DMAc/IPAc, 9/1 Clear Type J DMAc/ACN, 9/1 Clear Type J
Example 38
[0281] SCY-078 Citrate Type A via Reactive Crystallization: SCY-078
citrate Type A was obtained by reactive crystallization in ACN. The
XRPD pattern showed distinctive diffraction peaks (FIG. 45). DSC
curve showed two endothermic peaks at 56.7.degree. C. and
187.1.degree. C. (onset temperatures) (FIG. 46). TGA curve
displayed a 7.9% weight loss up to 150.degree. C. (FIG. 46). DVS
plot showed a water uptake of 7.0% at 80% RH (FIG. 47). There was
no form change after DVS analysis.
[0282] SCY-078 citrate Type A was also tested with variable
temperature XRPD analysis. No form change was observed upon heating
SCY-078 citrate Type A to 120.degree. C. and then cooling back to
25.degree. C., indicating that SCY-078 citrate Type A is an an
hydrate.
[0283] After crystallization process development, SCY-078 citrate
Type A exhibited higher crystallinity and less surface moisture
adsorption was produced (FIG. 49). DSC curve showed two endothermic
peaks at 41.7.degree. C. and 194.8.degree. C. (onset temperatures).
TGA curve displayed 2.9% weight loss up to 150.degree. C. DVS
analysis showed a water uptake of 6.5% at 25.degree. C. and 80% RH.
No form change was observed after DVS analysis. .sup.1H-NMR
spectrum in CD.sub.3OD showed the molar ration of freebase and
citric acid is 1:1, indicating that SCY-078 citrate Type A is
mono-citrate.
Example 39
[0284] SCY-078 Citrate Type B: SCY-078 citrate Type B was obtained
by slurry conversion at room temperature in ACN. SCY-078 citrate
Type B can also be obtained by slurrying SCY-078 citrate Type A in
various organic solvents such as EtOH, ACN, acetone, MIBK, EtOAc,
IPAc, DCM, toluene, heptane, MeOH/acetone (1/19, v/v), IPA/heptane
(1/19, v/v), and THF/toluene (1/19, v/v). SCY-078 citrate Type B
converts to Type A rapidly under vacuum or upon N.sub.2 flow at
room or elevated temperature.
[0285] The XRPD pattern of SCY-078 citrate Type B showed
distinctive diffraction peaks (FIG. 51). DSC curve exhibited three
endothermic peaks at 70.8.degree. C., 190.6.degree. C., and
202.9.degree. C. (peak temperatures) (FIG. 52). TGA curve displayed
10.3% weight loss up to 150.degree. C. (FIG. 52).
Example 40
[0286] SCY-078 Citrate Type E: SCY-078 citrate Type E was obtained
by drying a metastable solvate SCY-078 citrate Type R from
MeOH/IPAc. The XRPD pattern shows the crystalline form of the
sample (FIG. 53). SCY-078 citrate Type E is not stable at ambient
conditions, since it rapidly converts to a new form (SCY-078
citrate Type M) after exposing to air for 2 days (FIG. 54).
Example 41
[0287] SCY-078 Citrate Type F: SCY-078 citrate Type F was obtained
by reverse anti-solvent addition in IPA/toluene according to the
process described in Example 33 and Table 29. The XRPD pattern
indicated that SCY-078 citrate Type F is weakly crystalline (FIG.
55). DSC curve exhibited a wide endothermic peak at 37.3.degree. C.
(onset temperature)(FIG. 56). TGA curve displayed a weight loss of
11.8% up to 120.degree. C. (FIG. 56).
Example 42
[0288] SCY-078 Citrate Type M: SCY-078 citrate Type M was obtained
by storing SCY-078 citrate Type E in ambient conditions for 2 days.
The XRPD pattern of SCY-078 citrate Type M displayed distinctive
diffraction peaks (FIG. 57). DSC curve exhibited two endothermic
peaks at 125.8.degree. C. and 193.3.degree. C. (onset temperatures)
(FIG. 58). TGA curve displayed a 11.4% weight loss up to
150.degree. C. (FIG. 58). DVS plot showed 11.0% water uptake at
25.degree. C. and 80% RH (FIG. 59). After DVS, SCY-078 citrate Type
M converts to partially amorphous.
[0289] XRPD analysis was also performed at variable temperatures
wherein XRPD patterns were produced at 25.degree. C., then at
150.degree. C., and finally, again at 25.degree. C. (FIG. 60). A
shift in diffraction peaks was observed, indicating that Type M is
probably a channel hydrate.
Example 43
[0290] SCY-078 Citrate Type N: SCY-078 citrate Type N was obtained
by slurrying SCY-078 citrate Type B in EtOH at room temperature for
two weeks. SCY-078 citrate Type N can also be obtained by exposing
SCY-078 citrate Type A in EtOH vapor for 8 days or slurrying
SCY-078 citrate Type A in EtOH for 2 hours. The XRPD pattern of
SCY-078 citrate Type N indicates that it is highly crystalline
(FIG. 61). SCY-078 citrate Type N converts to SCY-078 citrate Type
A after vacuum drying at room temperature (FIG. 62), indicating
SCY-078 citrate Type N is a metastable EtOH solvate, which rapidly
converts to SCY-078 citrate Type A under vacuum or upon air/N.sub.2
drying at ambient temperature or elevated temperature.
Example 44
[0291] SCY-078 Citrate Type O: SCY-078 citrate Type O was obtained
by slurrying SCY-078 citrate Type M in acetone at room temperature
for 19 hours. The XRPD pattern of SCY-078 citrate Type O indicated
that it is highly crystalline with distinctive diffraction peaks
(FIG. 63). SCY-078 citrate Type O converts to SCY-078 citrate Type
S under ambient or vacuum conditions.
Example 45
[0292] SCY-078 Citrate Type Q: SCY-078 citrate Type Q was obtained
when performing reactive crystallization of freebase and citric
acid (1:1) in EtOH without seeds. SCY-078 citrate Type N was
consistently obtained when the reactive crystallization was
performed using SCY-078 citrate Type N or SCY-078 citrate Type A
seeds. The XRPD pattern showed SCY-078 citrate Type Q is highly
crystalline with distinctive diffraction peaks (FIG. 64). SCY-078
citrate Type Q can convert to SCY-078 citrate Type A after vacuum
drying at room temperature, indicating that SCY-078 citrate Type Q
is a metastable EtOH solvate (FIG. 65).
[0293] The stability of the two EtOH solvates, SCY-078 citrate Type
N and SCY-078 citrate Type Q, was evaluated by measuring their
solubility at 5.degree. C. and 20.degree. C. (Table 34). The
solubility was measured by slurrying SCY-078 citrate Type N and
SCY-078 citrate Type Q samples in EtOH for 24 hours with a magnetic
stirring rate of 1000 rpm. SCY-078 citrate Type Q exhibited lower
solubility than SCY-078 citrate Type N in EtOH at 5.degree. C. and
20.degree. C., indicating that SCY-078 citrate Type Q is
thermodynamically more stable in EtOH from 5.degree. C. to
20.degree. C. XRPD analysis of the remaining wet cakes from the
solubility experiments showed no form change for both SCY-078
citrate Type Q and SCY-078 citrate Type N.
TABLE-US-00057 TABLE 34 Solubility (mg/mL) of SCY-078 citrate Type
N and SCY- 078 citrate Type Q in EtOH at different temperatures
Temperature (.degree. C.) Type N Type Q 5 24.4 17.4 20 27.1
25.9
Example 46
[0294] SCY-078 Citrate Type R: SCY-078 citrate Type R was obtained
by slurrying SCY-078 citrate Type M in MeOH/IPAc (1/14, v/v) for 17
hours. SCY-078 citrate Type R can also be obtained by reverse
anti-solvent addition in MeOH/IPAc. The XRPD pattern indicated that
SCY-078 citrate Type R is weakly crystalline (FIG. 66). XRPD
analysis also indicated that SCY-078 citrate Type R is a metastable
solvate that can easily convert to SCY-078 citrate Type S upon air
drying and to SCY-078 citrate Type M after vacuum drying (FIG.
67).
Example 47
[0295] SCY-078 Citrate Type S: SCY-078 citrate Type S can be
obtained by drying SCY-078 citrate Type O sample under ambient or
vacuum condition. The XRPD patterns showed shift of diffraction
peaks after conversion from SCY-078 citrate Type 0 to SCY-078
citrate Type S (FIG. 68). DSC curve exhibited two endothermic peaks
at 35.7.degree. C. and 188.0.degree. C. (onset temperatures) (FIG.
69). TGA curve displayed 6.6% weight loss up to 100.degree. C.
(FIG. 69). DVS plot showed 8.2% water uptake at 25.degree. C. and
80% RH for SCY-078 citrate Type S (FIG. 70). XRPD analysis after
DVS showed peak shifts. XRPD analysis was further performed at
variable temperatures 30.degree. C. to 120.degree. C. and back to
40.degree. C., which showed a shift of diffraction peaks (FIG.
71).
Example 48
[0296] Disproportionation of SCY-078 Citrate Salt: Crystalline
forms of SCY-078 citrate named Type C, Type I, Type J, and Type P
were observed either during polymorph study or when investigating
the inter-conversion relationship of different SCY-078 citrate
forms. XRPD patterns of the four forms (FIG. 72) demonstrated that
SCY-078 citrate Type C and SCY-078 citrate Type J are freebase
forms and that SCY-078 citrate Type I and SCY-078 citrate Type P
are likely freebase forms.
[0297] SCY-078 citrate Type I was obtained in DMSO/EtOH system.
SCY-078 citrate Type P was obtained by slurrying SCY-078 citrate
Type M in acetone/H.sub.2O system. SCY-078 citrate Type A
disproportionated to the freebase (SCY-078 citrate Type C, which
converts to SCY-078 citrate Type J upon drying) when slurrying in
EtOH/H.sub.2O, acetone/H.sub.2O, and BuOH/H.sub.2O systems.
Slurrying SCY-078 citrate Type A or evaporating the citrate
solution in DMSO, DMAc and DCM-related co-solvents also resulted in
disproportionation.
Example 49
[0298] Inter-conversion Between SCY-078 Citrate Type A and Citrate
Type B: Slurry experiments were performed with SCY-078 citrate Type
A in different organic solvents in order to understand the
inter-conversion between SCY-078 citrate Type A and SCY-078 citrate
Type B. SCY-078 citrate Type A (.about.20 mg) was suspended into a
solvent (0.5 mL) in a 1.5-mL glass vial. After the suspensions were
ultrasonicated for 1 hour or stirred for 6 hours at room
temperature, the remaining solids were isolated for XRPD analysis.
The results (Table 35) indicated that SCY-078 citrate Type B can be
obtained from various organic solvents. SCY-078 citrate Type B was
also prepared from SCY-078 citrate Type A by slurry in EtOH, ACN,
acetone, MIBK, EtOAc, IPAc, DCM, toluene, heptane, MeOH/acetone
(1/19), IPA/heptane (1/19), THF/toluene (1/19) or by solid vapor
diffusion in EtOAc. SCY-078 citrate Type B can convert to SCY-078
citrate Type A via drying under N.sub.2 or vacuum at room
temperature.
TABLE-US-00058 TABLE 35 Summary of preparation methods of SCY-078
citrate Type B Form, Wet Form, Vacuum Form after N.sub.2 Solvent
Preparation Slurry filtered slurry drying at RT ACN Ultrasonication
Type B Type A Type A for 1 hr DCM Ultrasonication Type B Type A
Type A for 1 hr EtOAc Stirring for 6 hrs Type B Type B Type A
Example 50
[0299] Inter-conversion between SCY-078 citrate Type A and SCY-078
citrate Type N and SCY-078 citrate Type Q: SCY-078 citrate Type N
can be obtained by slurrying SCY-078 citrate Type A (or SCY-078
citrate Type B) in EtOH with ultrasonication or at room temperature
for 1 hour. SCY-078 citrate Type N rapidly converts to SCY-078
citrate Type A via vacuum filtration (FIG. 73).
[0300] SCY-078 citrate Type Q was obtained by reactive
crystallization of freebase MeOH desolvate and citric acid (1:1) in
EtOH without seeds. After drying in vacuum at room temperature,
SCY-078 citrate Type Q converts to SCY-078 citrate Type A (FIG.
74). The study of the inter-conversion between SCY-078 citrate Type
A and SCY-078 citrate Type N and SCY-078 citrate Type Q is
summarized below in Table 36.
TABLE-US-00059 TABLE 36 Slurry conversion of SCY-078 citrate Type A
or SCY- 078 citrate Type B to SCY-078 citrate Type N Form, Form,
Starting Material Method Solvent Wet Slurry Vacuum Dry Type A
Ultrasonication EtOH Type N Type A Type B Ultrasonication EtOH Type
N Not Measured MeOH Reactive EtOH Type Q Type A desolvate/
crystallization citric acid (1:1)
Example 51
[0301] Inter-conversion Relationship Around Channel Hydrate SCY-078
Citrate Type M: Metastable solvate SCY-078 citrate Type R was
obtained by reverse anti-solvent addition in MeOH/IPAc. SCY-078
citrate Type R converted to SCY-078 citrate Type E after drying in
vacuum at room temperature, and then SCY-078 citrate Type M was
obtained by storing SCY-078 citrate Type E under ambient conditions
for 2 days (FIG. 75). SCY-078 citrate Type R was found to convert
to SCY-078 citrate Type M directly upon vacuum drying at room
temperature.
[0302] Slurry experiments were performed on SCY-078 citrate Type M
in selected organic solvents. The results (Table 37) indicated that
SCY-078 citrate Type M converted to SCY-078 citrate Type O after
slurrying in acetone for 17 hours, and SCY-078 citrate Type O
converted to SCY-078 citrate Type S after air drying (FIG. 76).
SCY-078 citrate Type M converted to SCY-078 citrate Type A when
slurried in ACN (FIG. 77), and converted to metastable solvate
SCY-078 citrate Type R in MeOH/IPAc co-solvent (FIG. 78). SCY-078
citrate Type R converted to SCY-078 citrate Type S upon air drying
and converted back to SCY-078 citrate Type M through vacuum drying
at room temperature. No form change was observed by slurrying
SCY-078 citrate Type M in heptane (FIG. 79).
TABLE-US-00060 TABLE 37 Slurry experiments result of SCY-078
citrate Type M in organic solvents Solvent Condition Solid Form
Acetone 10 mins Amorphous ultrasonication/wet 17 hrs (slurry) wet
Type O 17 hrs (slurry) dry under Type S ambient conditions ACN 10
mins Type M ultrasonication/wet 17 hrs (slurry) wet Type B 17 hrs
(slurry) dry under Type A ambient conditions Heptane 10 mins Type M
ultrasonication/wet 17 hrs (slurry) wet Type M 17 hrs (slurry) dry
under Type M ambient conditions MeOH/IPAc 10 mins Type M (5/70,
v/v) ultrasonication/wet 17 hrs (slurry) wet Type R* 17 hrs
(slurry) dry under Type S ambient conditions *Type R converts to
Type M after vacuum drying at RT
Example 52
[0303] Stability Study of SCY-078 Citrate Type A, SCY-078 Citrate
Type M, and SCY-078 Citrate Type S: As described in Example 25 and
Table 19, SCY-078 citrate Type A is physically/chemically stable at
the tested conditions for at least 1 week. To test the physical and
chemical stability of SCY-078 citrate Type M and SCY-078 citrate
Type S, each was placed under three different conditions: (1) open
dish at 25.degree. C. with 60% RH; (2) open dish at 40.degree. C.
with 75% RH; and (3) closed dish at 60.degree. C. with no humidity
control. SCY-078 citrate Type M was tested for 4 days and SCY-078
citrate Type S was tested for 1 week (FIGS. 80-81).
[0304] The results (Table 38) showed that SCY-078 citrate Type M
was physically and chemically stable at 25.degree. C. and 60% RH
for at least 4 days. One diffraction peak change and partial
crystallinity loss was observed in the XRPD pattern of SCY-078
citrate Type M after storage at 40.degree. C. and 75% RH. This is
consistent with the previous observation in Example 42 that SCY-078
citrate Type M partially converts to amorphous after DVS analysis.
The impurity of SCY-078 citrate Type M increased under closed
conditions at 60.degree. C. for 4 days.
[0305] SCY-078 citrate Type S is physically and chemically stable
under 60.degree. C. closed conditions for one week. Diffraction
peak shifts were observed for the samples stored at 25.degree. C.
and 60% RH and 40.degree. C. and 75% RH.
TABLE-US-00061 TABLE 38 Physical and Chemical Stability of SCY-078
citrate Type M and SCY-078 citrate Type S Impurity % Solid Sample
Condition by HPLC Form Type M (4 days) Initial 0.42 Type M
25.degree. C./60% 0.39 Type M RH 40.degree. C./75% 0.00 Type M* RH
60.degree. C. closed 0.63 Type M Type S (1 week) Initial 0.10 Type
S 25.degree. C./60% 0.03 Type S** RH 40.degree. C./75% 0.03 Type
S** RH 60.degree. C. closed 0.11 Type S *One peak change was
observed for the sample **Peak shifts were observed for the
samples
Example 53
[0306] Alternative Preparation of SCY-078 Citrate Type A: A 10-L
reactor was charged with SCY-078 phosphate (450 g; freebase content
in phosphate was 85.6% by HPLC). 2-MeTHF (2.25 L) was charged into
the same reactor. A 10% Na.sub.2CO.sub.3 water solution (2.25 L) at
20.degree. C. was charged into the reaction in 25 min. The
suspension was stirred at 20.degree. C. for 20 min and then allowed
to settle for 30 min. The organic layer was collected and washed
with 1.8 L of saturated NaCl water solution twice, and then further
washed with 1.8 L deionized water once.
[0307] The organic layer was transferred to a 4-L crystallizer. The
reactor was rinsed with 250 mL 2-MeTHF and the liquid was
transferred into the crystallizer containing the organic layer. The
solution was concentrated in the crystallizer to 900 mL at
50.degree. C. The crystallizer was charged with 900 mL methanol and
the mixture was cooled to 40.degree. C. The mixture was stirred at
40.degree. C. for 1 hour (clear). 4.5 g of seeds were added to the
crystallizer and the suspension was aged at 40.degree. C. for 1
hour. The mixture was then concentrated to 900 mL at 40.degree. C.
The crystallizer was then charged with 900 mL methanol and again
concentrated to 900 mL at 40.degree. C. This step was repeated
twice more and the mother liquor was assayed by gas chromatography.
The mixture was cooled to 10.degree. C. in 2 hours and then aged at
10.degree. C. for no less than three hours. The mother liquor was
sampled for solution concentration by HPLC. The suspension was
filtered and the cake was dried in a vacuum over at 35.degree. C.
for 12 hours.
[0308] To generate the citrate salt, a 10-L jacketed crystallizer
with a twin-impeller over-head agitator was used. The diameter of
the impeller is 13 cm. First, EtOH (500 mL) was added into a 10-L
crystallizer (Crystallizer 1) and was agitated (300 rpm). The
temperature of Crystallizer 1 was maintained at 25.degree. C. The
SCY-078 freebase (242.09 g) was added to Crystallizer 1. Another
volume of EtOH (500 mL) was charged into Crystallizer 1.
Crystallizer 1 was heated to 50.degree. C. A citric acid solution,
prepared by dissolving citric acid (58.22 g) into EtOH (758 mL),
was charged into Crystallizer 1 in 35 min. Crystallizer 1 was
heated to 55.degree. C. and stirred for 20 minutes. Then
Crystallizer 1 was cooled to 50.degree. C. for 20 minutes.
[0309] After cooling, the extraneous matter was filtered (pore size
of 30.about.50 .mu.m) and the filtrate was transferred to another
10-L crystallizer (Crystallizer 2). The filter was washed with EtOH
(5 mL) and transferred into Crystallizer 2. The mixture in
Crystallizer 2 was stirred at 50.degree. C. for 30 minutes. Next a
seed slurry, which was prepared from seeds (13.22 g) that were
sonicated and dispersed in 50/50 EtOH/n-heptane (68 mL), was
rapidly charged into Crystallizer 2. The mixture in Crystallizer 2
was aged at 50.degree. C. for 2 hours. Crystallizer 2 was then
charged with n-heptane (1758 mL) for 12 hours at 50.degree. C. The
mixture was again aged at 50.degree. C. for 2 hours. From the
resulting mixture, a sample was taken for XRPD analysis and
microscopy.
[0310] The mixture was cooled to 20.degree. C. in 2 hours and then
stirred at 20.degree. C. for 3 hours. The batch was filtered and
the cake was washed with a solution of 1:1 EtOH/n-heptane (500 mL).
The cake was blown with N.sub.2 for 60 minutes. Finally, the cake
was dried at 45-55.degree. C. with N.sub.2 blowing.
[0311] Ultimately 241 grams of product was obtained with a 86.4%
yield. XRPD analysis showed that the product was highly crystalline
SCY-078 citrate Type A (FIG. 82). TGA curve showed a weight loss of
2.2% before 150.degree. C. (FIG. 83). The DSC curve showed a
melting point of 197.8.degree. C. (onset temperature) (FIG. 83).
The resulting crystals were rod-like with an average size of 34.2
.mu.m (FIG. 84).
Example 54
[0312] Preparation and characterization of SCY-078 Trifluoroacetate
Type A: SCY-078 amorphous freebase (994.3 mg) and trifluoroacetic
acid (freebase/acid molar ratio--1/1) were weighted into a 5-mL
vial, followed by addition of 5 mL acetonitrile. The mixture was
slurried at RT with a magnetic stirring rate of 1000 rpm for 4
days. The suspension was centrifuged and vacuum dried at RT
overnight.
[0313] SCY-078 Trifluoroacetate Type A is highly crystalline as
shown in the XRPD (FIG. 85). A weight loss of 1.1% is observed up
to 120.degree. C. in the TGA curve (FIG. 86). The DSC (FIG. 86)
shows two endothermic peaks, one at 65.8.degree. C. and
229.8.degree. C. Trifluoroacetate Type A converted to Type B after
stored under ambient conditions for 2 days (FIG. 87). The molar
ratio of trifluoroacetate Type A (acid:freebase) was determined to
be 1:1 via HPLC-IC confirmation.
Example 55
[0314] Preparation and characterization of SCY-078 Trifluoroacetate
Type B: Trifluoroacetic acid (331.5 mg) was added into acetonitrile
(8 mL) in a 20-mL glass vial, followed by addition of amorphous
SCY-078 freebase Type A (freebase/acid molar ratio=1/1). The
mixture was stirred at RT with a magnetic stirring rate of 600 rpm
for 24 hours. The suspension was vacuum filtered and dried at RT
for 20 hours. Trifluoroacetate Type A was obtained (2.18 g), which
converted to Trifluoroacetate Type B after storage at ambient
conditions for almost 1 month.
[0315] SCY-078 Trifluoroacetate Type B is highly crystalline as
shown in the XRPD (FIG. 88). A weight loss of 4.7% is observed up
to 120.degree. C. in the TGA curve (FIG. 89). The DSC (FIG. 89)
shows two endothermic peaks, one at 92.8.degree. C. and
230.0.degree. C. Due to the reversible conversation of
Trifluoroacetate Type A and Type B, the molar ratio of
Trifluoroacetate Type B (acid:freebase) is postulated to be 1:1,
same as Type A.
[0316] From the DVS (FIG. 90), 3.4 wt % of water uptake was
observed at 25.degree. C./80% RH, indicating that Type B is
moderately hygroscopic. The DVS revealed potential form change with
respect to RH, estimated to be between 30% RH and 40% RH. SCY-078
Trifluoroacetate Type B converted to Type A after DVS as shown in
FIG. 91.
[0317] To investigate transition relationship of trifluoroacetate
Type A and Type B, both samples were stored in chambers with
varying relative humidity to monitor any form change. Summary of
trifluoroacetate Type B stored at varying relative humidity is
listed in Table 39, and XRPD patterns overlay is displayed in FIG.
92. Trifluoroacetate Type B converted to Type A only at high
relative humidity (97% RH) while Type B is stable at low relative
humidity (<22% RH). Varying temperature (VT)-XRPD of
trifluoroacetate Type A was performed. VT-XRPD patterns overlay is
displayed in FIG. 93. Type A converted to Type B after heated to
120.degree. C.
TABLE-US-00062 TABLE 39 Relativity Humidity 0% 22% 97% TFA Type B
Type B Type B Type A The XRPD patterns were collected after storage
for 24 hours.
Example 56
[0318] Preparation and characterization of SCY-078 HCl Type I:
342.7 .mu.L of concentrated HCl (37.5%) was dispersed in 40 mL of
acetone. 2.0 mg of SCY-078 freebase Type A (freebase/acid molar
ratio=1/1.5) was added. The suspension was settled in a biochemical
incubator to perform heat-cooling cycles (50.degree.
C..about.20.degree. C.) with a magnetic stirring rate of 600 rpm.
The suspension was cooled to 5.degree. C. at a rate of 0.1.degree.
C./min and aged at 5.degree. C. for 17 hours. The wet cake was
vacuum filtered and dried at RT for 20 hours. SCY-078 HCl Type I
(2.06 g) was obtained.
[0319] SCY-078 HCl Type I is highly crystalline as shown in the
XRPD (FIG. 94). A weight loss of 4.2% is observed up to 120.degree.
C. in the TGA curve (FIG. 95). The DSC (FIG. 95) shows three
endothermic peaks, one at 46.2.degree. C., one at 115.5.degree. C.
and one at 274.3.degree. C. The molar ratio of SCY-078 HCl Type I
(acid:freebase) was determined to be 1.5:1 via HPLC-IC.
[0320] From the DVS (FIG. 96), 6.1 wt % of water uptake was
observed at 25.degree. C./80% RH, indicating HCl Type I is
moderately hygroscopic. No form change was observed after DVS
characterization as shown in FIG. 97.
Example 57
[0321] Preparation and characterization of SCY-078 HCl Type II:
SCY-078 HCl Type II was obtained by suspending HCl Type I in
acetate buffer (pH 5.5) for 4 hours. The XRPD pattern (FIG. 98)
indicates Type II is highly crystalline. The TGA shows that HCl
Type II exhibits a weigh loss of 6.9% up to 150.degree. C. and the
DSC shows an endothermic peak at 48.3.degree. C. (onset
temperature), as shown in FIG. 99.
Example 58
[0322] The solubility of trifluoroacetate Type A, Type B and HCl
Type I was measured in SGF at ambient temperature. Approximately 90
mg of solid sample was weighted into a 4-mL centrifuge tube, and 3
mL of SGF buffer was added before leaving the suspension on a
rolling incubator (25 r/min). 1.0 mL aliquot of the suspension was
sampled for centrifugation (10000 rpm, 3 mins) the supernatant was
analyzed by HPLC and pH measurement and solid by XRPD
characterization at 1 hr, 4 hr and 24 hrs, respectively. The
results are summarized in Table 40 and the solubility curves are
displayed in FIG. 100. All three salts exhibit high solubility in
SGF (>20 mg/mL at 24 hrs). Trifluoroacetate Type B converted to
Type A in SGF after an hour. However, no form change was observed
of trifluoroacetate Type A and HCl Type I in SGF. The XRPD patterns
of residual solid are shown in FIG. 101, FIG. 102, and FIG.
103.
TABLE-US-00063 TABLE 40 1 hr 4 hrs 24 hrs Starting Material S pH
Form change S pH Form change S pH Form change TFA Type A 15.9 2.2
No 19.8 2.2 No 23.2 2.1 No TFA Type B 14.3 2.0 Yes 18.4 2.0 Yes
21.4 1.8 Yes (Type A) (Type A) (Type A) HCl Type I 11.7 1.7 No 17.7
1.9 No 25.1 1.8 No S: solubility, mg/mL.
Example 59
[0323] The solubility of trifluoroacetate Type A, Type B and
hydrochloride Type I was measured in the FaSSIF alternative media
at ambient temperature. Approximately 15 mg of solid sample was
weighted into a 4-mL plastic tube, and 3 mL of the media was added
before leaving the suspension on a rolling incubator (25 r/min).
1.0 mL aliquot of the suspension was sampled for centrifugation
with the supernatant submitted for HPLC and pH measurement and
solid for XRPD characterization at 1 hr, 4 hr and 24 hrs,
respectively. The results are summarized in Table 41 and the
solubility curves are displayed in FIG. 104. All three salts
exhibit poor solubility in the FaSSIF alternative media (<0.01
mg/mL at 24 the kinetic hrs). Trifluoroacetate Type B converted to
Type A after an hour. However, no form change was observed of
trifluoroacetate Type A and HCl Type I. The XRPD patterns of
residual solid are shown in FIG. 105, FIG. 106, and FIG. 107.
TABLE-US-00064 TABLE 41 1 hr 4 hrs 24 hrs Starting Material S pH
Form change S pH Form change S pH Form change TFA Type A <LOD
6.5 No <LOD 6.4 No <LOD 6.4 No TFA Type B <LOD 6.4 Yes
<LOD 6.4 Yes <LOD 6.3 Yes (Type A) (Type A) (Type A) HCl Type
I 0.0033 5.0 No 0.0017 5.3 No 0.0046 5.1 No S: solubility, mg/mL;
LOD: 0.00064 mg/mL.
Example 60
[0324] The solubility of trifluoroacetate Type A, Type B and HCl
Type I was measured in the FeSSIF alternative media at ambient
temperature. Approximately 36 mg of solid sample was weighted into
a 4-mL plastic tube, and 3 mL of the media was added before leaving
the suspension on a rolling incubator (25 r/min). 1.0 mL aliquot of
the suspension was sampled for centrifugation with the supernatant
submitted for HPLC and pH measurement and solid for XRPD
characterization at 1 hr, 4 hr and 24 hrs, respectively. The
results are summarized in Table 42 and the solubility curves are
displayed in FIG. 108. All three salts exhibit a solubility of
.about.3 mg/mL at first one hour. HCl Type I exhibits an
equilibrium solubility of 3.5 mg/mL at 24 hrs, while
trifluoroacetate (both Type A and Type B) exhibit a decreasing
solubility after an hour. Trifluoroacetate Type A converted to Type
B after an hour. However, no form change was observed of
trifluoroacetate Type B and hydrochloride Type I. The XRPD patterns
of residual solid were included in FIG. 109, FIG. 110, and FIG.
111.
TABLE-US-00065 TABLE 42 1 hr 4 hrs 24 hrs Starting Material S pH
Form change S pH Form change S pH Form change TFA Type A 3.0 5.0
Yes 2.1 5.0 Yes 0.5 5.0 Yes (Type B) (Type B) (Type B) TFA Type B
3.3 5.0 No 3.0 5.0 No 1.1 4.9 No HCl Type I 2.9 4.8 No 3.5 4.8 No
3.5 4.9 No S: solubility, mg/mL.
Example 61
[0325] The solubility of trifluoroacetate Type A, Type B and HCl
Type I was measured in acetate buffer (pH 5.5) at ambient
temperature. Approximately 15 mg of solid sample was weighted into
a 4-mL plastic tube, and 3 mL of acetate pH 5.5 buffer was added
before leaving the suspension on a rolling incubator (25 r/min).
1.0 mL aliquot of the suspension was sampled for centrifugation
with the supernatant submitted for HPLC and pH measurement and
solid for XRPD characterization at 4 hr and 24 hrs, respectively.
The results are summarized in Table 43 and the solubility curves
are displayed in FIG. 112. Trifluoroacetate Type A exhibits higher
solubility in acetate pH 5.5 buffer, and no form change was
observed. However, Type B converted to Type A in acetate pH 5.5
buffer. While HCl Type I exhibits lower solubility in acetate pH
5.5 buffer comparing with trifluoroacetate, and HCl Type I
converted to Type II in acetate pH 5.5 buffer. The XRPD patterns of
residual solid were included in FIG. 113, FIG. 114, and FIG.
115.
TABLE-US-00066 TABLE 43 4 hrs 24 hrs Starting Material S pH Form
change S pH Form change TFA Type A 1.9 5.5 No 3.5 5.4 No TFA Type B
0.89 5.4 Yes 2.2 5.2 Yes (Type A + B) (Type A) HCl Type I 0.59 4.8
Yes 1.1 4.9 Yes (Type II) (Type II) S: solubility, mg/mL.
Example 62
[0326] The solubility of trifluoroacetate Type A, Type B and HCl
Type I was measured in the phosphate (pH 6.0) alternative media at
ambient temperature. Approximately 15 mg of solid sample was
weighted into a 4-mL plastic tube, and 3 mL of media was added
before leaving the suspension on a rolling incubator (25 r/min).
1.0 mL aliquot of the suspension was sampled for centrifugation
with the supernatant for HPLC and pH measurement and solid for XRPD
characterization at 4 hr and 24 hrs, respectively. The results are
summarized in Table 44, and the solubility curves are displayed in
FIG. 116. HCl Type I exhibits higher solubility, while
trifluoroacetate Type A exhibits lower solubility. Trifluoroacetate
Type A firstly converted to Type B at 4 hrs and back to Type A at
24 hrs, while Type B converted to Type A at 24 hrs. No form change
was observed of HCl Type I. The XRPD patterns of residual solid
were included in FIG. 117, FIG. 118, and FIG. 119.
TABLE-US-00067 TABLE 44 4 hrs 24 hrs Starting Material S pH Form
change S pH Form change TFA Type A 0.28 5.8 Yes 0.99 5.5 Back to
(Type B) Form A TFA Type B 0.39 5.3 No 2.7 4.9 Yes (Type A) HCl
Type I 1.2 3.9 No 4.1 4.4 No S: solubility, mg/mL.
Example 63
[0327] Physical and chemical stability evaluation of
trifluoroacetate Type A, trifluoroacetate Type B, and HCl Type I
was performed at 25.degree. C./60% RH, 40.degree. C./75% RH and
60.degree. C. for 1, 2, 4 and 8 weeks. In the experiments,
approximately 20 mg of solid was placed into a 1.5-mL glass vial.
The vials were stored under 25.degree. C./60% RH (uncapped),
40.degree. C./75% RH (uncapped) and 60.degree. C. (capped)
conditions for 8 weeks. XRPD analysis was then employed to check
the crystalline form of the solid, and HPLC was utilized to
determine the purity profile at 1, 2, 4 and 8 weeks. From the
stability results summarized in Table 45, both trifluoroacetate
Type A and HCl Type I are physically and chemically stable under
25.degree. C./60% RH, 40.degree. C./75% RH and 60.degree. C.
conditions for 8 weeks. The solid form change of trifluoroacetate
Type A at 2 and 4 weeks was postulated to the air-exposure when the
sample was taken out for XRPD characterization. Trifluoroacetate
Type B is chemically stable, however, physically unstable evidenced
by conversion to Type A under these conditions. XRPD patterns
overlay of trifluoroacetate Types A and B and HCl Type I at
stressed conditions are displayed from FIG. 120 to FIG. 128.
TABLE-US-00068 TABLE 45 Initial Time 25.degree. C./60% RH
40.degree. C./75% RH 60.degree. C. (capped) HPLC point HPLC Solid
HPLC Solid HPLC Solid Salt purity (weeks) purity form purity form
purity form TFA Type A 99.9% 1 99.9% Type A 99.9% Type A 99.9% Type
A 2 99.9% Type B 99.9% Type B 99.9% Type B 4 99.9% Type A + B 99.9%
Type A + B 99.9% Type A + B 6 -- Type A -- Type A -- Type A 8 99.9%
Type A 99.9% Type A 99.9% Type A TFA Type B 99.9% 1 99.9% Type A
99.9% Type A 99.9% Type A 2 99.9% Type A 99.9% Type A 99.9% Type A
4 99.9% Type A 99.9% Type A 99.9% Type A 8 99.9% Type A 99.9% Type
A 99.9% Type A HCl Type I 99.9% 1 99.9% Type I 99.9% Type I 99.9%
Type I 2 99.9% Type I 99.9% Type I 99.9% Type I 4 99.9% Type I
99.9% Type I 99.9% Type I 8 99.9% Type I 99.9% Type I 99.9% Type I
The solid form change of TFA Type A at 2 and 4 weeks was postulated
to the air-exposure taken out for XRPD characterization.
* * * * *