U.S. patent application number 12/368884 was filed with the patent office on 2009-06-11 for rate-controlled particles.
Invention is credited to Joerg Breitenbach, Thomas Hantke, Bettina Rehbock, Joerg Rosenberg.
Application Number | 20090148531 12/368884 |
Document ID | / |
Family ID | 7923278 |
Filed Date | 2009-06-11 |
United States Patent
Application |
20090148531 |
Kind Code |
A1 |
Hantke; Thomas ; et
al. |
June 11, 2009 |
RATE-CONTROLLED PARTICLES
Abstract
Rate-controlled particles, comprising compounds of the formula
##STR00001## as a solid dispersion.
Inventors: |
Hantke; Thomas; (Mannheim,
DE) ; Rehbock; Bettina; (Dannstadt, DE) ;
Rosenberg; Joerg; (Ellerstadt, DE) ; Breitenbach;
Joerg; (Mannheim, DE) |
Correspondence
Address: |
NOVAK DRUCE DELUCA + QUIGG LLP
1300 EYE STREET NW, SUITE 1000 WEST TOWER
WASHINGTON
DC
20005
US
|
Family ID: |
7923278 |
Appl. No.: |
12/368884 |
Filed: |
February 10, 2009 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10088400 |
Jul 22, 2002 |
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PCT/EP00/09149 |
Sep 19, 2000 |
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12368884 |
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Current U.S.
Class: |
424/489 |
Current CPC
Class: |
A61K 31/496 20130101;
C07D 233/56 20130101; C07D 239/50 20130101; A61K 31/53 20130101;
A61P 35/00 20180101; C07D 403/12 20130101; C07D 239/48 20130101;
C07D 231/12 20130101; A61K 9/1635 20130101; C07D 249/08 20130101;
A61P 31/12 20180101; A61P 43/00 20180101; A61K 31/505 20130101;
C07D 405/14 20130101; C07D 251/18 20130101 |
Class at
Publication: |
424/489 |
International
Class: |
A61K 9/14 20060101
A61K009/14; A61P 43/00 20060101 A61P043/00 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 24, 1999 |
DE |
19945982.7 |
Claims
1. (canceled)
2. Particles according to claim 16, wherein the copolymer of
N-vinylpyrrolidone is a copolymer with vinyl acetate.
3. Particles according to claim 16, further comprising a
surfactant.
4. Particles according to claim 3, wherein the surfactant is a
PEG-n-hydrogenated castor oil.
5. Particles according to claim 16, wherein the surfactant is a low
molecular weight poly-oxyethylene polyoxypropylene block
copolymer.
6. Particles according to claim 16, further comprising citric acid
in amounts of up to 5% b.w.
7. Particles according to claim 16, wherein the home- or copolymer
of N-vinylpyrrolidone is used in amounts of from 40 to 70% b.w. of
the total weight of the dosage form.
8. Particles according to claim 7, wherein the homo- or copolymer
of N-vinylpyrrolidone is used in amounts of from 50 to 65% b.w.
9. Particles according to claim 16, wherein the controlled release
is an instant release of the drug.
10. Particles according to a claim 16, wherein the controlled
release is a sustained release.
11. Particles according to claim 10, further comprising
hydroxypropyl methyl cellulose in amounts of from 5 to 10% b.w.
12. Particles according to claim 16, obtained by forming a
homogeneous mixture of the components in the form of a melt,
extruding said mixture and shaping of the extrudate.
13. Particles according to claim 16, comprising a compound selected
from the group consisting of
4-[[4-amino-5-chloro-6-[(2,4,6-trimethylphenyl)amino]-2-pyrimidinyl]-amin-
o]benzonitrile;
4-[[5-chloro-4-[(2,4,6-trimethylphenyl)amino]-2-pyrimidinyl]amino]benzoni-
trile;
4-[[5-bromo-4-(4-cyano-2,6-dimethylphenoxy)-2-pyrimidin]amino]-benz-
onitrile;
4-[[4-amino-5-chloro-6-[(4-cyano-2,6-dimethylphenyl)amino]-2-pyr-
imidinyl]amino]benzonitrile;
4-[[5-bromo-6-[(4-cyano-2,6-dimethylphenyl)amino]-2-pyrimidinyl]-amino]be-
nzonitrile;
4-[[4-amino-5-chloro-6-[(4-cyano-2,6-dimethylphenoxy)-2-pyrimidinyl]amino-
]benzonitrile;
4-[[4-amino-5-bromo-6-(4-cyano-2,6-dimethylphenyloxy)-2-pyrimidinyl]amino-
]benzonitrile; a N-oxide, a pharmaceutically acceptable addition
salt or a stereochemically isomeric form thereof.
14. Pharmaceutical dosage form, comprising particles according to
claim 16.
15. Pharmaceutical dosage forms according to claim 14, further
comprising one or more pharmaceutically acceptable excipients
16. Rate-controlled release particles, comprising a compound of
formula II ##STR00011## an N-oxide, a pharmaceutically acceptable
addition salt, a quaternary amine or a stereochemically isomeric
form thereof, wherein
-b.sup.1=b.sup.2-C(R.sup.2a)=b.sup.3-b.sup.4=represents a bivalent
radical of formula --CH.dbd.CH--C(R.sup.2a).dbd.CH--CH.dbd. (b-1);
--N.dbd.CH--C(R.sup.2a).dbd.CH--CH.dbd. (b-2);
--CH.dbd.N--C(R.sup.2a).dbd.CH--CH.dbd. (b-3);
--N.dbd.CH--C(R.sup.2a).dbd.N--CH.dbd. (b-4);
--N.dbd.CH--C(R.sup.2a).dbd.CH--N.dbd. (b-5);
--CH.dbd.N-c(R.sup.2a).dbd.N--CH.dbd. (b-6);
--N.dbd.N--C(R.sup.2a).dbd.CH--CH.dbd. (b-7); q is 0, 1, 2; or
where possible q is 3 or 4; R.sup.1 is hydrogen, aryl, formyl,
C.sub.1-6alkylcarbonyl, C.sub.1-6alkyl, C.sub.1-6alkyloxycarbonyl,
C.sub.1-6alkyl substituted with formyl, C.sub.1-6alkylcarbonyl,
C.sub.1-6alkyloxycarbonyl; R.sup.2a is cyano, aminocarbonyl, mono-
or di(methyl)aminocarbonyl, C.sub.1-6alkyl substituted with cyano,
aminocarbonyl or mono- or di(methyl)aminocarbonyl, C.sub.2-6alkenyl
substituted with cyano, or C.sub.2-6alkynyl substituted with cyano;
each R.sup.2 independently is hydroxy, halo, C.sub.1-6alkyl
optionally substituted with cyano or --C(.dbd.O)R.sup.6,
C.sub.3-7cycloalkyl, C.sub.2-6alkenyl optionally substituted with
one or more halogen atoms or cyano, C.sub.2-6alkynyl optionally
substituted with one or more halogen atoms or cyano,
C.sub.1-6alkyloxy, C.sub.1-6alkyloxycarbonyl, carboxyl, cyano,
nitro, amino, mono- or di(C.sub.1-6alkyl)amino, polyhalomethyl,
polyhalomethyloxy, polyhalomethylthio, --S(.dbd.O)R.sup.6,
--NH--S(.dbd.O).sub.pR.sup.6, --C(.dbd.O)R.sup.6, --NHC(.dbd.O)H,
--C(.dbd.O)NHNH.sub.2, --NHC(.dbd.O)R.sup.6, --C(.dbd.NH)R.sup.6 or
a radical of formula ##STR00012## wherein each A independently is
N, CH or CR.sup.6; B is NH, O, S or NR.sup.6; p is 1 or 2; and
R.sup.6 is methyl, amino, mono- or dimethylamino or polyhalomethyl;
L is C.sub.1-10alkyl, C.sub.2-10alkenyl, C.sub.2-10alkynyl,
C.sub.3-7cycloalkyl, whereby each of said aliphatic group may be
substituted with one or two substituents independently selected
from C.sub.3-7cycloalkyl, indolyl or isoindolyl, each optionally
substituted with one, two, three or four substituents each
independently selected from halo, C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, cyano, aminocarbonyl, nitro, amino,
polyhalomethyl, polyhalomethyloxy and C.sub.1-6alkylcarbonyl,
phenyl, pyridinyl, pyrimidinyl, pyrazinyl or pyridazinyl, wherein
each of said aromatic rings may optionally be substituted with one,
two, three, four or five substituents each independently selected
from the substituents defined in R.sup.2; or L is --X--R.sup.3
wherein R.sup.3 is phenyl, pyridinyl, pyrimidinyl, pyrazinyl or
pyridazinyl, wherein each of said aromatic rings may optionally be
substituted with one, two, three, four or five substituents each
independently selected from the substituents defined in R.sup.2;
and X is --NH--, --NH--NH--, --N.dbd.N--, --O--, --C(.dbd.O)--,
--CHOH--, --S--, --S(.dbd.O)-- or --S(.dbd.O).sub.2--; Q represents
hydrogen, C.sub.1-6alkyl, halo, polyhaloC.sub.1-6alkyl or
--NR.sup.4R.sup.5; and R.sup.4 and R.sup.5 are each independently
selected from hydrogen, hydroxy, C.sub.1-12alkyl,
C.sub.1-12alkyloxy, C.sub.1-12alkylcarbonyl,
C.sub.1-2alkyloxycarbonyl, aryl, amino, mono- or
di(C.sub.1-12alkyl)amino, mono- or di(C.sub.1-2alkyl)aminocarbonyl
wherein each of the aforementioned C.sub.1-2alkyl groups may
optionally and each individually be substituted with one or two
substituents each independently selected from hydroxy,
C.sub.1-6alkyloxy, hydroxyc.sub.1-6alkyloxy, carboxyl,
C.sub.1-6alkyloxycarbonyl, cyano, amino, imino, mono- or
di(C.sub.1-6alkyl)amino, polyhalomethyl, polyhalomethyloxy,
polyhalomethylthio, --S(O).sub.pR.sup.6,
--NH--S(.dbd.O).sub.pR.sup.6, --C(.dbd.O)R.sup.6, --NHC(.dbd.O)H,
--C(.dbd.O)NHNH.sub.2, --NHC(O)R.sup.6, --C(.dbd.NH)R.sup.6, aryl
and Het; or R.sup.4 and R.sup.5 taken together may form
pyrrolidinyl, piperidinyl, morpholinyl, azido or mono- or
di(C.sub.1-2alkyl)aminoC.sub.1-4-alkylidene; Y represents hydroxy,
halo, C.sub.3-7cycloalkyl, C.sub.2-6alkenyl optionally substituted
with one or more halogen atoms, C.sub.2-6alkynyl optionally
substituted with one or more halogen atoms, C.sub.1-6alkyl
substituted with cyano or --C(.dbd.O)R.sup.6, C.sub.1-6alkyloxy,
C.sub.1-6alkyloxycarbonyl, carboxyl, cyano, nitro, amino, mono- or
di(C.sub.1-6alkyl)amino, polyhalomethyl, polyhalomethyloxy,
polyhalomethylthio, --S(.dbd.O).sub.pR.sup.6,
--NH--S(.dbd.O).sub.pR.sup.6, --C(.dbd.O)R.sup.6, --NHC(.dbd.O)H,
--C(.dbd.O)NHNH.sub.2, --NHC(.dbd.O)R.sup.6, --C(NH)R.sup.6 or
aryl; aryl is phenyl or phenyl substituted with one, two, three,
four or five substituents each independently selected from halo,
C.sub.1-6alkyl, C.sub.3-7cycloalkyl, C.sub.1-6alkyloxy, cyano,
nitro, polyhaloC.sub.1-6alkyl and polyhaloC.sub.1-6alkyloxy; Het is
an aliphatic or aromatic heterocyclic radical; said aliphatic
heterocyclic radical is selected from pyrrolidinyl, piperidinyl,
homopiperidinyl, piperazinyl, morpholinyl-, tetrahydrofuranyl and
tetrahydrothienyl wherein each of said aliphatic heterocyclic
radical may optionally be substituted with an oxo group; and said
aromatic heterocyclic radical is selected from pyrrolyl, furanyl,
thienyl, pyridinyl, pyrimidinyl, pyrazinyl and pyridazinyl wherein
each of said aromatic heterocyclic radical may optionally be
substituted with hydroxy, as a solid dispersion in a polymeric
matrix, wherein the polymeric matrix is consisting of a homo- or
copolymer of N-vinylpyrrolidone.
Description
[0001] The present invention concerns pharmaceutical compositions
in the form of rate-controlled particles, comprising compounds of
the formula (I) to (VI)
[0002] (I) is an antiviral compound of formula
##STR00002##
a N-oxide, a pharmaceutically acceptable addition salt or a
stereochemically isomeric form thereof, wherein [0003] Y is
CR.sup.5 or N; [0004] A is CH, CR.sup.4 or N; [0005] n is 0, 1, 2,
3 or 4; [0006] Q is --NR.sup.1R.sup.2 or when Y is CR.sup.5 then Q
may also be hydrogen; [0007] R.sup.1 and R.sup.2 are each
independently selected from hydrogen, hydroxy, C.sub.1-12alkyl,
C.sub.1-12alkyloxy, C.sub.1-12alkylcarbonyl,
C.sub.1-12alkyloxycarbonyl, aryl, amino, mono- or
di(C.sub.1-12alkyl)-amino, mono- or
di(C.sub.1-12alkyl)aminocarbonyl wherein each of the aforementioned
C.sub.1-12alkyl groups may optionally and each individually be
substituted with one or two substituents each independently
selected from hydroxy, C.sub.1-6alkyloxy,
hydroxy-C.sub.1-6alkyloxy, carboxyl, C.sub.1-6alkyloxycarbonyl,
cyano, amino, imino, aminocarbonyl, aminocarbonylamino, mono- or
di(C.sub.1-6alkyl)amino, aryl and Het; or [0008] R.sup.1 and
R.sup.2 taken together may form pyrrolidinyl, piperidinyl,
morpholinyl, azido or mono- or
di(C.sub.1-12alkyl)aminoC.sub.1-4-alkylidene; [0009] R.sup.3 is
hydrogen, aryl, C.sub.1-6alkylcarbonyl, C.sub.1-6alkyl,
C.sub.1-6alkyloxy-carbonyl, C.sub.1-6alkyl substituted with
C.sub.1-6alkyloxycarbonyl; and [0010] each R.sup.4 independently is
hydroxy, halo, C.sub.1-6alkyl, C.sub.1-6alkyloxy, cyano,
aminocarbonyl, nitro, amino, trihalomethyl, trihalo-methyloxy, or
when Y is CR.sup.5 then R.sup.4 may also represent C.sub.1-6alkyl
substituted with cyano or aminocarbonyl; [0011] R.sup.5 is hydrogen
or C.sub.1-4alkyl; [0012] L is --X.sup.1--R.sup.6 or
--X.sup.2-Alk-R.sup.7 wherein [0013] R.sup.6 and R.sup.7 each
independently are phenyl or phenyl substituted with one, two,
three, four or five substituents each independently selected from
halo, hydroxy, C.sub.1-6alkyl, C.sub.1-6alkyloxy,
C.sub.1-6alkylcarbonyl, C.sub.1-6alkyloxycarbonyl, formyl, cyano,
nitro, amino, and trifluoromethyl; or when Y is CR.sup.5 then
R.sup.6 and R.sup.7 may also be selected from phenyl substituted
with one, two, three, four or five substituents each independently
selected from aminocarbonyl, trihalomethyloxy and trihalomethyl; or
when Y is N then R.sup.6 and R.sup.7 may also be selected from
indanyl or indolyl, each of said indanyl or indolyl may be
substituted with one, two, three, four or five substituents each
independently selected from halo, hydroxy, C.sub.1-6alkyl,
C.sub.1-6alkyloxy, C.sub.1-6alkylcarbonyl,
C.sub.1-6alkyloxycarbonyl, formyl, cyano, nitro, amino, and
trifluoromethyl; [0014] X.sup.1 and X.sup.2 are each independently
--NR.sup.3--, --NH--NH--, --N.dbd.N--, --O--, --S--, --S(.dbd.O)--
or --S(.dbd.O).sub.2--; [0015] Alk is C.sub.1-4alkanediyl; or
[0016] when Y is CR.sup.5 then L may also be selected from
C.sub.1-10alkyl, C.sub.3-10alkenyl, C.sub.3-10alkynyl,
C.sub.3-7cycloalkyl, or C.sub.1-10alkyl substituted with one or two
substituents independently selected from C.sub.3-7cycloalkyl,
indanyl, indolyl and phenyl, wherein said phenyl, indanyl and
indolyl may be substituted with one, two, three, four or where
possible five substituents each independently selected from halo,
hydroxy, C.sub.1-6alkyl, C.sub.1-6alkyloxy, cyano, aminocarbonyl,
C.sub.1-6alkyloxy-carbonyl, formyl, nitro, amino, trihalomethyl,
trihalomethyloxy and C.sub.1-6alkylcarbonyl; [0017] aryl is phenyl
or phenyl substituted with one, two, three, four or five
substituents each independently selected from halo, C.sub.1-6alkyl,
C.sub.1-6alkyloxy, cyano, nitro and trifluoromethyl; [0018] Het is
an aliphatic or aromatic heterocyclic radical; said aliphatic
heterocyclic radical is selected from pyrrolidinyl, piperidinyl,
homopiperidinyl, piperazinyl, morpholinyl, tetrahydrofuranyl and
tetrahydrothienyl wherein each of said aliphatic heterocyclic
radical may optionally be substituted with an oxo group; and said
aromatic heterocyclic radical is selected from pyrrolyl, furanyl,
thienyl, pyridyl, pyrimidinyl, pyrazinyl and pyridazinyl wherein
each of said aromatic heterocyclic radical may optionally be
substituted with hydroxy.
[0019] The compounds of formula (I) can be prepared according to
the methods described in the patent applications with application
number PCT/EP99/02043 and PCT/EP99/02044.
[0020] (II) is an antiviral compound of formula
##STR00003##
the N-oxides, the pharmaceutically acceptable addition salts,
quaternary amines and the stereochemically isomeric forms thereof,
wherein [0021]
-b.sup.1=b.sup.2-C(R.sup.2a)=b.sup.3-b.sup.4=represents a bivalent
radical of formula
[0021] --CH.dbd.CH--C(R.sup.2a).dbd.CH--CH.dbd. (b-1);
--N.dbd.CH--C(R.sup.2a).dbd.CH--CH.dbd. (b-2);
--CH.dbd.N--C(R.sup.2a).dbd.CH--CH.dbd. (b-3);
--N.dbd.CH--C(R.sup.2a).dbd.N--CH.dbd. (b-4);
--N.dbd.CH--C(R.sup.2a).dbd.CH--N.dbd. (b-5);
--CH.dbd.N--C(R.sup.2a).dbd.N--CH.dbd. (b-6);
--N.dbd.N--C(R.sup.2a).dbd.CH--CH.dbd. (b-7); [0022] q is 0, 1, 2;
or where possible q is 3 or 4; [0023] R.sup.1 is hydrogen, aryl,
formyl, C.sub.1-6alkylcarbonyl, C.sub.1-6alkyl,
C.sub.1-6alkyloxycarbonyl, C.sub.1-6alkyl substituted with formyl,
C.sub.1-6alkylcarbonyl, C.sub.1-6alkyloxycarbonyl; [0024] R.sup.2a
is cyano, aminocarbonyl, mono- or di(methyl)aminocarbonyl,
C.sub.1-6alkyl substituted with cyano, aminocarbonyl or mono- or
di(methyl)aminocarbonyl, C.sub.2-6alkenyl substituted with cyano,
or C.sub.2-6alkynyl substituted with cyano; [0025] each R.sup.2
independently is hydroxy, halo, C.sub.1-6alkyl optionally
substituted with cyano or --C(.dbd.O)R.sup.6, C.sub.3-7cycloalkyl,
C.sub.2-6alkenyl optionally substituted with one or more halogen
atoms or cyano, C.sub.2-6alkynyl optionally substituted with one or
more halogen atoms or cyano, C.sub.1-6alkyloxy,
C.sub.1-6alkyloxycarbonyl, carboxyl, cyano, nitro, amino, mono- or
di(C.sub.1-6alkyl)amino, polyhalomethyl, polyhalomethyloxy,
polyhalomethylthio, --S(.dbd.O).sub.pR.sup.6,
--NH--S(.dbd.O).sub.pR.sup.6, --C(.dbd.O)R.sup.6, --NHC(.dbd.O)H,
--C(.dbd.O)NHNH.sub.2, --NHC(.dbd.O)R.sup.6, --C(.dbd.NH)R.sup.6 or
a radical of formula
##STR00004##
[0025] wherein each A independently is N, CH or CR.sup.6; [0026] B
is NH, O, S or NR.sup.6; [0027] p is 1 or 2; and [0028] R.sup.6 is
methyl, amino, mono- or dimethylamino or polyhalomethyl; [0029] L
is C.sub.1-10alkyl, C.sub.2-10alkenyl, C.sub.2-10alkynyl,
C.sub.3-7cycloalkyl, whereby each of said aliphatic group may be
substituted with one or two substituents independently selected
from [0030] C.sub.3-7cycloalkyl, [0031] indolyl or isoindolyl, each
optionally substituted with one, two, three or four substituents
each independently selected from halo, C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, cyano, aminocarbonyl, nitro, amino,
polyhalomethyl, polyhalomethyloxy and C.sub.1-6alkylcarbonyl,
[0032] phenyl, pyridinyl, pyrimidinyl, pyrazinyl or pyridazinyl,
wherein each of said aromatic rings may optionally be substituted
with one, two, three, four or five substituents each independently
selected from the substituents defined in R.sup.2; or [0033] L is
--X--R.sup.3 wherein [0034] R.sup.3 is phenyl, pyridinyl,
pyrimidinyl, pyrazinyl or pyridazinyl, wherein each of said
aromatic rings may optionally be substituted with one, two, three,
four or five substituents each independently selected from the
substituents defined in R.sup.2; and [0035] X is --NR.sup.1--,
--NH--NH--, --N.dbd.N--, --O--, --C(.dbd.O)--, --CHOH--, --S--,
--S(.dbd.O)-- or --S(.dbd.O).sub.2--; [0036] Q represents hydrogen,
C.sub.1-6alkyl, halo, polyhaloC.sub.1-6alkyl or --NR.sup.4R.sup.5;
and [0037] R.sup.4 and R.sup.5 are each independently selected from
hydrogen, hydroxy, C.sub.1-12alkyl, C.sub.1-12alkyloxy,
C.sub.1-12alkylcarbonyl, C.sub.1-22alkyloxycarbonyl, aryl, amino,
mono- or di(C.sub.1-12alkyl)amino, mono- or
di(C.sub.1-12alkyl)aminocarbonyl wherein each of the aforementioned
C.sub.1-12alkyl groups may optionally and each individually be
substituted with one or two substituents each independently
selected from hydroxy, C.sub.1-6alkyloxy, hydroxyC.sub.1-6alkyloxy,
carboxyl, C.sub.1-6alkyloxycarbonyl, cyano, amino, imino, mono- or
di(C.sub.1-6alkyl)amino, polyhalomethyl, polyhalomethyloxy,
polyhalomethylthio, --S(.dbd.O).sub.pR.sup.6,
--NH--S(.dbd.O).sub.pR.sup.6, --C(.dbd.O)R.sup.6, --NHC(.dbd.O)H,
--C(.dbd.O)NHNH.sub.2, --NHC(.dbd.O)R.sup.6, --C(.dbd.NH)R.sup.6,
aryl and Het; or [0038] R.sup.4 and R.sup.5 taken together may form
pyrrolidinyl, piperidinyl, morpholinyl, azido or mono- or
di(C.sub.1-12alkyl)aminoC.sub.1-4alkylidene; [0039] Y represents
hydroxy, halo, C.sub.3-7cycloalkyl, C.sub.2-6alkenyl optionally
substituted with one or more halogen atoms, C.sub.2-6alkynyl
optionally substituted with one or more halogen atoms,
C.sub.1-6alkyl substituted with cyano or --C(.dbd.O)R.sup.6,
C.sub.1-6alkyloxy, C.sub.1-6alkyloxycarbonyl, carboxyl, cyano,
nitro, amino, mono- or di(C.sub.1-6alkyl)amino, polyhalomethyl,
polyhalomethyloxy, polyhalomethylthio, --S(.dbd.O).sub.pR.sup.6,
--NH--S(.dbd.O).sub.pR.sup.6, --C(.dbd.O)R.sup.6, --NHC(.dbd.O)H,
--C(.dbd.O)NHNH.sub.2, NHC(.dbd.O)R.sup.6, --C(.dbd.NH)R.sup.6 or
aryl; [0040] aryl is phenyl or phenyl substituted with one, two,
three, four or five substituents each independently selected from
halo, C.sub.1-6alkyl, C.sub.3-7cycloalkyl, C.sub.1-6alkyloxy,
cyano, nitro, polyhaloC.sub.1-6alkyl and polyhaloC.sub.1-6alkyloxy;
[0041] Het is an aliphatic or aromatic heterocyclic radical; said
aliphatic heterocyclic radical is selected from pyrrolidinyl,
piperidinyl, homopiperidinyl, piperazinyl, morpholinyl,
tetrahydrofuranyl and tetrahydrothienyl wherein each of said
aliphatic heterocyclic radical may optionally be substituted with
an oxo group; and said aromatic heterocyclic radical is selected
from pyrrolyl, furanyl, thienyl, pyridinyl, pyrimidinyl, pyrazinyl
and pyridazinyl wherein each of said aromatic heterocyclic radical
may optionally be substituted with hydroxy.
[0042] The compounds of formula (II) can be prepared according to
the methods described in the U.S. patent applications with
application No. 60/143,962 and 60/107,792.
[0043] (III) is an antiviral compound of formula
##STR00005##
a N-oxide, a pharmaceutically acceptable addition salt, a
quaternary amine or a stereochemically isomeric form thereof,
wherein -a.sup.1=a.sup.2-a.sup.3=a.sup.4- represents a bivalent
radical of formula
--CH.dbd.CH--CH.dbd.CH-- (a-1);
--N.dbd.CH--CH.dbd.CH-- (a-2);
--N.dbd.CH--N.dbd.CH-- (a-3);
--N.dbd.CH--CH.dbd.N-- (a-4);
--N.dbd.N--CH.dbd.CH-- (a-5); [0044] n is 0, 1, 2, 3 or 4; and in
case -a.sup.1=a.sup.2-a.sup.3-a.sup.4- is (a-1), then n may also be
5; [0045] R.sup.1 is hydrogen, aryl, formyl,
C.sub.1-6alkylcarbonyl, C.sub.1-6alkyl, C.sub.1-6alkyloxycarbonyl,
C.sub.1-6alkyl substituted with formyl, C.sub.1-6alkylcarbonyl,
C.sub.1-6alkyloxycarbonyl; and [0046] each R.sup.2 independently is
hydroxy, halo, C.sub.1-6alkyl optionally substituted with cyano or
--C(.dbd.O)R.sup.4, C.sub.3-7cycloalkyl, C.sub.2-6alkenyl
optionally substituted with one or more halogen atoms or cyano,
C.sub.2-6alkynyl optionally substituted with one or more halogen
atoms or cyano, C.sub.1-6alkyloxy, C.sub.1-6alkyloxycarbonyl,
carboxyl, cyano, nitro, amino, mono- or di(C.sub.1-6alkyl)amino,
polyhalomethyl, polyhalomethyloxy, polyhalomethylthio,
--S(.dbd.O).sub.pR.sup.4, --NH--S(.dbd.O).sub.pR.sup.4,
--C(.dbd.O)R.sup.4, --NHC(.dbd.O)H, --C(.dbd.O)NHNH.sub.2,
--NHC(.dbd.O)R.sup.4, --C(.dbd.NH)R.sup.4 or a radical of
formula
##STR00006##
[0046] wherein each A independently is N, CH or CR.sup.4; [0047] B
is NH, O, S or NR.sup.4; [0048] p is 1 or 2; and [0049] R.sup.4 is
methyl, amino, mono- or dimethylamino or polyhalomethyl; [0050] L
is C.sub.4-10alkyl, C.sub.2-10alkenyl, C.sub.2-10alkynyl,
C.sub.3-7cycloalkyl, whereby each of said aliphatic group may be
substituted with one or two substituents independently selected
from [0051] C.sub.3-7cycloalkyl, [0052] indolyl or isoindolyl, each
optionally substituted with one, two, three or four substituents
each independently selected from halo, C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, cyano, aminocarbonyl, nitro, amino,
polyhalomethyl, polyhalomethyloxy and C.sub.1-6alkylcarbonyl,
[0053] phenyl, pyridinyl, pyrimidinyl, pyrazinyl or pyridazinyl,
wherein each of said aromatic rings may optionally be substituted
with one, two, three, four or five substituents each independently
selected from the substituents defined in R.sup.2; or [0054] L is
--X--R.sup.3 wherein [0055] R.sup.3 is phenyl, pyridinyl,
pyrimidinyl, pyrazinyl or pyridazinyl, wherein each of said
aromatic rings may optionally be substituted with two, three, four
or five substituents each independently selected from the
substituents defined in R.sup.2; and [0056] X is --NR.sup.1--,
--NH--NH--, --N.dbd.N--, --O--, --C(.dbd.O)--, --CHOH--, --S--,
--S(.dbd.O)-- or --S(.dbd.O).sub.2--; aryl is phenyl or phenyl
substituted with one, two, three, four or five substituents each
independently selected from halo, C.sub.1-6alkyl,
C.sub.3-7cycloalkyl, C.sub.1-6alkyloxy, cyano, nitro,
polyhaloC.sub.1-6alkyl and polyhaloC.sub.1-6alkyloxy.
[0057] The compounds of formula (III) can be prepared according to
the methods described in the U.S. patent application with
application No. 60/107,799.
[0058] (IV) is an antiviral compound of formula
##STR00007##
the pharmaceutically acceptable acid addition salts and the
stereochemically isomeric forms thereof, wherein [0059] R.sup.1 and
R.sup.2 are each independently selected from hydrogen; hydroxy;
amino; C.sub.1-6alkyl; C.sub.1-6alkyloxy; C.sub.1-6alkylcarbonyl;
C.sub.1-6alkyl-oxycarbonyl; Ar.sup.1; mono- or
di(C.sub.1-6alkyl)amino; mono- or di(C.sub.1-6alkyl)aminocarbonyl;
dihydro-2(3H)-furanone; C.sub.1-6alkyl substituted with one or two
substituents each independently selected from amino, imino,
aminocarbonyl, aminocarbonyl-amino, hydroxy,
hydroxyC.sub.1-6alkyloxy, carboxyl, mono- or
di(C.sub.1-6alkyl)amino, C.sub.1-6alkyloxycarbonyl and thienyl; or
[0060] R.sup.1 and R.sup.2 taken together may form pyrrolidinyl,
piperidinyl, morpholinyl, azido or mono- or
di(C.sub.1-6alkyl)aminoC.sub.1-4-alkylidene; [0061] R.sup.3 is
hydrogen, Ar.sup.1, C.sub.1-6alkylcarbonyl, C.sub.1-6alkyl,
C.sub.1-6alkyloxycarbonyl, C.sub.1-6alkyl substituted with
C.sub.1-6alkyloxycarbonyl; and [0062] R.sup.4, R.sup.5, R.sup.6,
R.sup.7 and R.sup.8 are each independently selected from hydrogen,
hydroxy, halo, C.sub.1-6alkyl, C.sub.1-6alkyloxy, cyano,
aminocarbonyl, nitro, amino, trihalomethyl or trihalomethyloxy
[0063] L is C.sub.1-10alkyl; C.sub.3-10alkenyl; C.sub.3-10alkynyl;
C.sub.3-7cycloalkyl; or [0064] L is C.sub.1-10alkyl substituted
with one or two substituents independently selected from
C.sub.3-7cycloalkyl; indolyl or indolyl substituted with one, two,
three or four substituents each independently selected from halo,
C.sub.1-6alkyl, C.sub.1-6alkyloxy, cyano, aminocarbonyl, nitro,
amino, trihalomethyl, trihalomethyloxy, C.sub.1-6alkylcarbonyl;
phenyl or phenyl substituted with one, two, three, four or five
substituents each independently selected from halo, hydroxy,
C.sub.1-6alkyl, C.sub.1-6alkyloxy, cyano, aminocarbonyl, nitro,
amino, trihalomethyl, trihalomethyloxy, C.sub.1-6alkylcarbonyl;
and,
[0065] Ar.sup.1 is phenyl, or phenyl substituted with one, two or
three substituents each independently selected from halo,
C.sub.1-6alkyl, C.sub.1-6alkyloxy, cyano, nitro or trifluoromethyl;
with the proviso that compounds (a) to (o)
TABLE-US-00001 Co. No. Alk R.sup.1/R.sup.2 R.sup.3 R.sup.4 R.sup.5
R.sup.6 R.sup.7 R.sup.8 a 1-(4-(2-methylpropyl)phenyl)ethyl H/H H
CH.sub.3 H H H H b 1-(4-(2-methylpropyl)phenyl)ethyl H/H H H H
NO.sub.2 H H c 1-(4-(2-methylpropyl)phenyl)ethyl H/H C.sub.6H.sub.5
H H H H H d 1-(4-(2-methylpropyl)phenyl)ethyl H/H H NO.sub.2 H
CH.sub.3 H H e 1-(4-(2-methylpropyl)phenyl)ethyl H/H H H H NH.sub.2
H H f 4-(2-methylpropyl)phenylmethyl H/H H H CF.sub.3 H H H g
1-(4-(2-methylpropyl)phenyl)ethyl H/H H H H Cl H H h
4-(2-methylpropyl)phenylmethyl H/H H H H H H H i
3,4-dimethoxyphenylmethyl H/H H H H H H H j
2,3-dimethoxyphenylmethyl H/H H H H H H H k
3,4-diethoxyphenylmethyl H/H H H H H H H l
2-(3,5-(1,1-dimethylethyl)-4- H/H H H H H H H hydroxy-phenyl)ethyl
m 2-(3,5-(1,1-dimethylethyl)-4- H/H H H t-Bu OH t-Bu H
hydroxy-phenyl)ethyl n Phenylmethyl H/H H CH.sub.3 H H H H o
Phenylmethyl H/H H H H H H H
are not included.
[0066] The compounds of formula (IV) can be prepared according to
the methods described in EP-A-0834507.
[0067] (V) is an antifungal compound of formula
##STR00008##
the N-oxide forms, the pharmaceutically acceptable acid addition
salts and stereochemically isomeric forms thereof, wherein [0068] n
is zero, 1, 2 or 3; [0069] X is N or CH; [0070] each R.sup.1
independently is halo, nitro, cyano, amino, hydroxy,
C.sub.1-4alkyl, C.sub.1-4alkyloxy or trifluoromethyl; [0071]
R.sup.2 is hydrogen; C.sub.3-7alkenyl; C.sub.3-7alkynyl, aryl;
C.sub.3-7cycloalkyl; C.sub.1-6alkyl or C.sub.1-6alkyl substituted
with hydroxy, C.sub.1-4alkyloxy, C.sub.3-7cycloalkyl or aryl;
[0072] R.sup.3 and R.sup.4 each independently are hydrogen,
C.sub.1-6alkyl, C.sub.3-7cycloalkyl or aryl; or [0073] R.sup.3 and
R.sup.4 taken together form a bivalent radical --R.sup.3-R.sup.4--
of formula:
[0073] ##STR00009## [0074] wherein R.sup.5a, R.sup.5b, R.sup.5c,
R.sup.5d each independently are hydrogen, C.sub.1-6alkyl or aryl;
and aryl is phenyl or phenyl substituted with one, two or three
substituents selected from halo, nitro, cyano, amino, hydroxy,
C.sub.1-4alkyl, C.sub.1-4alkyloxy or trifluoromethyl.
[0075] The compounds of formula (V) can be prepared according to
the methods described in WO 99/02523.
[0076] (VI) is an apolipoprotein-B synthesis inhibitor of
formula
##STR00010##
the N-oxides, the stereochemically isomeric forms thereof, and the
pharmaceutically acceptable acid addition salts, wherein A and B
taken together form a bivalent radical of formula
--N.dbd.CH-- (a),
--CH.dbd.N-- (b),
--CH.sub.2--CH.sub.2-- (c),
--CH.dbd.CH-- (d),
--C(.dbd.O)--CH.sub.2-- (e),
--CH.sub.2--C(.dbd.O)-- (f),
in the bivalent radicals of formula (a) and (b) the hydrogen atom
may be replaced by C.sub.1-6alkyl; in the bivalent radicals of
formula (c), (d), (e), (f), one or two hydrogen atoms may be
replaced by C.sub.1-6alkyl; [0077] R.sup.1 is hydrogen,
C.sub.1-6alkyl or halo; [0078] R.sup.2 is hydrogen or halo; [0079]
R.sup.3 is hydrogen; C.sub.1-8alkyl; C.sub.3-6cycloalkyl; or
C.sub.1-8alkyl substituted with hydroxy, oxo, C.sub.3-6cycloalkyl
or aryl; [0080] Het is a heterocycle selected from the group
consisting of pyridine; pyridine substituted with one or two
substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)amino or aryl; pyrimidine; pyrimidine substituted
with one or two substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)-amino or aryl; tetrazole; tetrazole substituted
with C.sub.1-6alkyl or aryl; triazole; triazole substituted with
one or two substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)-amino; thiadiazole; thiadiazole substituted with
one or two substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)-amino; oxadiazole substituted with one or two
substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)amino; imidazole; imidazole substituted with one
or two substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)amino; thiazole; thiazole substituted with one or
two substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)amino; oxazole; oxazole substituted with one or
two substituents selected from C.sub.1-6alkyl, hydroxy,
C.sub.1-6alkyloxy, trihalomethyl, amino, mono- or
di(C.sub.1-6alkyl)amino; [0081] aryl is phenyl or phenyl
substituted with C.sub.1-6alkyl or halo.
[0082] The heterocyclic radical "Het" is bound to the sulfur atom
via a carbon atom.
[0083] The compounds of formula (VI) can be prepared according to
the methods described in WO 96/13499.
[0084] The particles comprise the compounds of formula (I) to (VI)
as a solid dispersion in a polymeric matrix, wherein the polymeric
matrix is consisting of a homo- or copolymer of
N-vinyl-pyrrolidone. Furthermore, the invention concerns a process
for manufacturing of such particles and pharmaceutical dosage forms
comprising such particles.
[0085] The compounds of formula (I) to (VI) contained in the
particles show poor bio-availability.
[0086] In order to improve the dissolution characteristics the
compounds are dispersed in a polymeric matrix, preferably by using
a melt-extrusion process.
[0087] EP-A 0 240 904 discloses a method for producing solid
pharmaceutical forms by extrusion of polymer melts which contain
active substances, using as polymers homo- or copolymers of
N-vinyl-pyrrolidone.
[0088] EP-B 0 580 860 discloses a method for producing solid
dispersions of drug substances in a polymeric matrix using a twin
screw extruder.
[0089] It is an object of the present invention to provide
rate-controlled pharmaceutical forms containing the aforementioned
compounds.
[0090] We have found that this object is achieved by the particles
defined at the outset.
[0091] Preferred compounds according to the invention are: [0092]
4-[[4-[(2,4,6-trimethylphenyl)amino]-2-pyrimidinyl]amino]benzo
nitrile; [0093]
4-[[2-[(cyanophenyl)amino]-4-pyrimidinyl]amino]-3,5-dimethyl-benzo-
nitrile; [0094]
4-[[4-amino-5-chloro-6-[(2,4,6-trimethylphenyl)amino]-2-pyrimidinyl]-amin-
o]benzonitrile; [0095]
4-[[5-chloro-4-[(2,4,6-trimethylphenyl)amino]-2-pyrimidinyl]-amino]benzon-
itrile; [0096]
4-[[5-bromo-4-(4-cyano-2,6-dimethylphenoxy)-2-pyrimidinyl]-amino]benzonit-
rile; [0097]
4-[[4-amino-5-chloro-6-[(4-cyano-2,6-dimethylphenyl)amino]-2-pyrimidinyl]-
amino]benzonitrile; [0098]
4-[[5-bromo-6-[(4-cyano-2,6-dimethylphenyl)amino]-2-pyrimidinyl]-amino]be-
nzonitrile; [0099]
4-[[4-amino-5-chloro-6-(4-cyano-2,6-dimethylphenyloxy)-2-pyrimidinyl]amin-
o]benzonitrile; [0100]
4-[[4-amino-5-bromo-6-(4-cyano-2,6-dimethylphenyloxy)-2-pyrimidinyl]amino-
]benzonitrile; [0101]
4-[[4-[(2,4,6-trimethylphenyl)amino]-1,3,5-triazin-2-yl]amino]-benzonitri-
le; [0102]
4-[[4-amino-6-[(2,6-dichlorophenyl)methyl]-1,3,5-triazin-2-yl]--
amino]benzonitrile; [0103]
4-[[4-[(2,6-dichlorophenyl)methyl]-6-(hydroxyamino)-1,3,5-triazin-2-yl]am-
ino]benzonitrile; [0104]
1-[4-[4-[4-[[4-(2,4-difluorophenyl)-4-(1H-1,2,4-triazol-1-yl-methyl)-1,3--
dioxolan-2-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-3-(1-methylethyl)-2-im-
idazolidinone; [0105]
(-)-[2S-[2alpha,4alpha(S*)]]-4-[4-[4-[4-[[2-(4-chlorophenyl)-2-[[(4-methy-
l-4H-1,2,4-triazol-3-yl)thio]methyl]-1,3-dioxolan-4-yl]methoxy]phenyl]-1-p-
iperazinyl]phenyl]-2,4-dihydro-2-(1-methyl-propyl)-3H-1,2,4-triazol-3-one,
a N-oxide, a pharmaceutically acceptable addition salt or a
stereochemically isomeric form thereof.
[0106] According to the present invention the term
"rate-controlled" means that depending on the composition of the
matrix the particles can show instant release of the active
ingredient or modified release (sustained release).
[0107] The compounds according to the invention are homogeneously
dispersed in a polymer matrix consisting of a homopolymer of
N-vinylpyrrolidone or, preferably, a copolymer of
N-vinyl-pyrrolidone. A preferred copolymer is a copolymer of
N-vinyl-pyrrolidone and vinyl acetate, especially a copolymer
obtained from 60% b.w. of NVP and 40% b.w. of vinylacetate.
[0108] The polymers show Fikentscher K values of from 17 to 90,
preferably a K value of 30 (for the definition of the K value see
"H. Fikentscher, Cellulose-Chemie" (1932), 58-64 and 71-74).
[0109] The polymeric matrix component is used in amounts of from 40
to 70, preferably of from 50 to 65% b.w. of the total weight of the
particles.
[0110] In a preferred embodiment of the invention the polymeric
matrix further comprises a surfactant, preferably a surfactant with
a HLB-value of 10-18 (HLB: Hydrophilic Lipophilic Balance).
Especially preferred surfactants are selected form the group
consisting of low molecular weight polyoxyethylene
polyoxy-propylene block copolymers with a mean molecular weight of
1000 to 6000 g/mol, and hydrogenated castor oil which can be
modified with polyethylene glycol.
[0111] The amounts of surfactants used lies in the range of up to
20% b.w., preferably 5 to 15% b.w., of the particles.
[0112] In another preferred embodiment the matrix further comprises
an organic carboxylic acid in amounts of up to 5% b.w. of the
particles.
[0113] In another preferred embodiment of the invention the
polymeric matrix further comprises hydroxypropyl methyl cellulose
in amounts of up to 25% b.w., preferably from 5 to 10% b.w.
[0114] The particles of the present invention are prepared as solid
dispersions of the active compounds in a polymeric matrix. The term
"solid dispersion" is well known in the art and means a dispersion
consisting of solid components. Preferably solid dispersions are in
the form of solid solutions wherein the active ingredients are
molecularly dispersed in the polymeric matrix.
[0115] Such solid dispersion is preferably obtained by forming a
homogeneous mixture of the components in the form of a melt,
extruding said melt and shaping of the extrudate. The melting is
effected by the input of thermal and/or mechanic energy.
[0116] Depending on the composition of the matrix, the melting
takes place in the range of from 40.degree. C. to 190.degree. C.,
preferably 50 to 150.degree. C. The suitable temperature range
depends on the glass transition temperature of the polymer
component, the properties of the active ingredients and further
additives. The optimal temperature range can be established by a
few simple tests.
[0117] The mixing of the active substances with the polymer and
additional components of the matrix can take place before or after
the melting of the polymer. Preferably the process is solvent-free
which means that no additional organic solvents or water are
added.
[0118] The plastification and melting preferably can take place in
an extruder, a kneader or a mixing reactor, preferably in an
extruder having one or more screws which may rotate in the same
direction or opposite directions, especially in a twin screw
extruder. The latter can be operated with or without kneading
elements, but use of kneading elements is preferred because mixing
is better.
[0119] The still plastic material is extruded through a die or a
breaker plate and then shaped into particles. This may be effected
by milling and subsequent sieving the cooled extrudate. The
preferred particle size for instant release forms lies in the range
of from 0.5 to 1.5 mm.
[0120] The particles, optionally together with conventional
pharmaceutically acceptable excipients, may be further processed to
conventional pharmaceutical dosage forms such as tablets,
pastilles, suppositories, or be packed in capsules.
[0121] It is possible and particularly advantageous to produce
pharmaceutical forms with rate-controlled release and improved
dissolution rates of the active ingredients. This was not to be
expected in view of the low solubility of the active ingredients in
aqueous media.
EXAMPLES
General Method
[0122] Powder mixes of the components were melt kneaded at
145.degree. C. for 5 min. After cooling the solidified melts were
ground and sieved. The sieve fraction 0.5-1.5 mm was used for the
dissolution tests.
[0123] The composition of the individual powder mixes is listed in
Table 1.
TABLE-US-00002 TABLE 1 Example No. 1 2 3 4 5 6 Active
ingredient.sup.1) 30 30 30 30 30 40 VP-VAC-copolymer.sup.2) 65 55
55 60 55 47.1 Surfactant.sup.3) 5 15 5 5 4.3 Citric acid 5 HPMC 10
8.6 Surfactant.sup.4) 15
.sup.1)4-[[4-[2,4,6-trimethylphenyl)amino]-2-pyrimidinyl]amino]-benzonitri-
le .sup.2)Kollidon .RTM. VA64, VP/VAC = 60/40, BASF
Aktiengesellschaft .sup.3)PEG-n-hydrogenated Castoroil
.sup.4)polyoxyethylene polyoxypropylene blockcopolymer, mean mol.
weight 4000 g/mol
[0124] The dissolution tests were carried out according to USP
XXIII, paddle model, pH no change test, 0.1 M HCl, at 37.degree.
C., 100 rpm
[0125] The results are listed in Table 2.
TABLE-US-00003 TABLE 2 Dissolution Rates of particles according to
examples 1-6 Dissolution [%] Dissolution [%] time Ex. 1 Ex. 2 Ex. 3
Ex. 4 time Ex. 5 Ex. 6 [min] (IR) (IR) (IR) (IR) [min] (SR) (SR) 5
53 65 58 57 1 10 73 86 88 82 2 15 77 91 95 89 3 20 81 91 96 93 4 30
87 94 99 94 6 60 92 93 96 94 8 96 95 120 93 94 97 95 IR: Instant
Release SR: Sustained Release
[0126] DSC-Measurements were performed with the formulations
according to examples 1 to 6 in open pans (air) at temperatures of
from 20.fwdarw.250.degree. C., with a heating rate of 10.degree. C.
per minute. There is no indication of crystalline drug substance in
the solid dispersions.
* * * * *