U.S. patent application number 11/300976 was filed with the patent office on 2006-05-18 for compositions and therapeutic methods involving isoflavones and analogues thereof.
This patent application is currently assigned to Novogen Research Pty. Ltd.. Invention is credited to Andrew Heaton, Alan Husband, Graham Edmund Kelly, Naresh Kumar.
Application Number | 20060106220 11/300976 |
Document ID | / |
Family ID | 3816831 |
Filed Date | 2006-05-18 |
United States Patent
Application |
20060106220 |
Kind Code |
A1 |
Heaton; Andrew ; et
al. |
May 18, 2006 |
Compositions and therapeutic methods involving isoflavones and
analogues thereof
Abstract
Isoflavone compounds and analogues thereof, compositions
containing same and therapeutic methods of treatment involving same
are described.
Inventors: |
Heaton; Andrew; (Abbotsford,
AU) ; Kumar; Naresh; (Maroubra, AU) ; Kelly;
Graham Edmund; (Northbridge, AU) ; Husband; Alan;
(McMahon's Point, AU) |
Correspondence
Address: |
FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER;LLP
901 NEW YORK AVENUE, NW
WASHINGTON
DC
20001-4413
US
|
Assignee: |
Novogen Research Pty. Ltd.
|
Family ID: |
3816831 |
Appl. No.: |
11/300976 |
Filed: |
December 14, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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10704385 |
Nov 7, 2003 |
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11300976 |
Dec 14, 2005 |
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10070361 |
Jul 8, 2002 |
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PCT/AU00/01056 |
Sep 6, 2000 |
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10704385 |
Nov 7, 2003 |
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Current U.S.
Class: |
546/98 ; 546/153;
548/454; 549/23; 549/403 |
Current CPC
Class: |
A61P 17/06 20180101;
A61P 9/12 20180101; A61P 13/08 20180101; A23V 2250/2116 20130101;
A23V 2250/2116 20130101; A23V 2200/30 20130101; A61P 25/04
20180101; A61P 1/04 20180101; A23V 2002/00 20130101; C07D 311/38
20130101; C07D 471/06 20130101; A61P 35/00 20180101; A23L 33/10
20160801; C07D 311/26 20130101; A61P 1/00 20180101; A61P 7/00
20180101; A61P 15/12 20180101; A61P 17/04 20180101; A61P 25/24
20180101; A61P 7/12 20180101; A61P 19/02 20180101; A61P 25/28
20180101; A61P 25/22 20180101; A61P 5/00 20180101; A61P 19/10
20180101; A61P 25/06 20180101; C07D 311/58 20130101; A23V 2002/00
20130101; A23L 33/11 20160801; A61P 13/00 20180101; A61P 27/02
20180101; A61P 39/06 20180101; A61P 15/00 20180101; A61P 9/10
20180101; A61P 17/00 20180101; A61P 27/06 20180101; A23V 2002/00
20130101; A61P 29/00 20180101; A61P 5/30 20180101; A61P 9/00
20180101; A61P 17/14 20180101; C07D 311/36 20130101 |
Class at
Publication: |
546/098 ;
546/153; 549/023; 549/403; 548/454 |
International
Class: |
A61K 31/4745 20060101
A61K031/4745; C07D 471/04 20060101 C07D471/04; C07D 405/02 20060101
C07D405/02; C07D 409/02 20060101 C07D409/02; C07D 401/02 20060101
C07D401/02; A61K 31/4709 20060101 A61K031/4709 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 6, 1999 |
AU |
PQ 2661 |
Claims
1.-11. (canceled)
12. An isoflavone compound or analogue thereof of the general
formula I: ##STR28## in which Z is chosen from hydrogen and Za,
Z.sub.A is chosen from OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO,
C(O)R.sub.10, COOH, CO.sub.2R.sub.10, CONR.sub.3R.sub.4, alkyl,
haloalkyl, aryl, arylalkyl, thio, alkylthio, amino, alkylamino,
dialkylamino, nitro, and halo, W is chosen from hydrogen, hydroxy,
OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO, C(O)R.sub.10, COOH,
CO.sub.2R.sub.10, C.sub.1-6 alkyl, haloC.sub.1-6 alkyl, aryl,
arylC.sub.1-6 alkyl, thio, C.sub.1-6 alkylthio, amino, C.sub.1-6
alkylamino, diC.sub.1-6 alkylamino, nitro, and halo, X is chosen
from O and S, Y is ##STR29## R.sub.1 and R.sub.2 are independently
hydrogen, hydroxy, OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO,
C(O)R.sub.10, COOH, CO.sub.2R.sub.10, C.sub.1-6 alkyl,
haloC.sub.1-6 alkyl, aryl, arylC.sub.1-6 alkyl, thio, C.sub.1-6
alkylthio, amino, C.sub.1-6 alkylamino, diC.sub.1-6 alkylamino,
nitro, and halo, R.sub.3 is chosen from hydrogen, alkyl, aryl,
arylalkyl, an amino acid, C(O)R.sub.11 where R.sub.11 is hydrogen,
alkyl, aryl, arylalkyl or an amino acid, or CO.sub.2R.sub.12 where
R.sub.12 is hydrogen, alkyl, haloalkyl, aryl, and arylalkyl,
R.sub.4 is chosen from hydrogen, alkyl, and aryl, or R.sub.3 and
R.sub.4 taken together with the nitrogen to which they are attached
comprise pyrrolidinyl or piperidinyl, R.sub.6 is chosen from
hydrogen, hydroxy, C.sub.1-6 alkyl, aryl, amino, thio, COR.sub.11,
and CO.sub.2R.sub.12, R.sub.7 is chosen from hydrogen,
C(O)R.sub.11, C.sub.1-6 alkyl, haloC.sub.1-6 alkyl, aryl,
arylC.sub.1-6 alkyl, or Si(R.sub.13).sub.3 where each R.sub.13 is
independently hydrogen, C.sub.1-6 alkyl, and aryl, R.sub.9 is
chosen from C.sub.1-6 alkyl, haloC.sub.1-6alkyl, aryl,
arylC.sub.1-6alkyl, C(O)R.sub.11, and Si(R.sub.13).sub.3, R.sub.10
is chosen from hydrogen, C.sub.1-6 alkyl, haloC.sub.1-6 alkyl,
amino, aryl, arylC.sub.1-6 alkyl, an amino acid, C.sub.1-6
alkylamino, and diC.sub.1-6 alkylamino, R.sub.11 is chosen from
hydrogen, C.sub.1-6 alkyl, aryl, arylC.sub.1-6 alkyl, and an amino
acid, R.sub.12 is chosen from hydrogen, C.sub.1-6 alkyl,
haloC.sub.1-6 alkyl, aryl, and arylC.sub.1-6 alkyl, R.sub.14,
R.sub.15 and R.sub.16 are independently chosen from hydrogen,
hydroxy, OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO, C(O)R.sub.10,
COOH, CO.sub.2R.sub.10, C.sub.1-6 alkyl, haloC.sub.1-6 alkyl, aryl,
arylC.sub.1-6 alkyl, thio, C.sub.1-6 alkylthio, amino, C.sub.1-6
alkylamino, diC.sub.1-6 alkylamino, nitro, and halo, and aryl is
chosen from phenyl and naphthyl, either of which is optionally
substituted by one or more of C.sub.1-4 alkyl, hydroxy, C.sub.1-4
alkoxy, carbonyl, C.sub.1-4 alkoxycarbonyl, C.sub.1-4
alkylcarbonyloxy and halo, and with the proviso that: when R.sub.1
is hydroxy, or OC(O)R.sub.A where R.sub.A is alkyl or an amino
acid, R.sub.2 is hydrogen, hydroxy, OR.sub.B where R.sub.B is an
amino acid or C(O)R.sub.A Z is hydrogen, and W is hydrogen, then Y
is not 4-hydroxyphenyl or 4-alkylphenyl; when R.sub.1 is hydroxy,
or OC(O)R.sub.A where R.sub.A is alkyl or an amino acid, R.sub.2 is
hydrogen, hydroxy, OR.sub.B where R.sub.B is an amino acid or
C(O)R.sub.A, Z is hydrogen, and Y is 4-hydroxyphenyl or
4-alkylphenyl, then W is not hydrogen; when R.sub.1 is hydroxy, or
OC(O)R.sub.A where R.sub.A is alkyl or an amino acid, and Z is
hydrogen, W is hydrogen, and Y is 4-hydroxyphenyl or 4-alkylphenyl,
then R.sub.2 is not hydrogen, hydroxy, OR.sub.B where R.sub.B is an
amino acid or C(O)R.sub.A, when R.sub.2 is hydrogen, hydroxy,
OR.sub.B where R.sub.B is an amino acid or C(O)R.sub.A, Z is
hydrogen, W is hydrogen, and Y is 4-hydroxyphenyl or 4-alkylphenyl,
then R.sub.1 is not hydroxy, or OC(O)R.sub.A where R.sub.A is alkyl
or an amino acid; and when R.sub.1 is hydroxy, or OC(O)R.sub.A
where R.sub.A is alkyl or an amino acid, R.sub.2 is hydrogen,
hydroxy, OR.sub.B where R.sub.B is an amino acid or C(O)R.sub.A, W
is hydrogen, and Y is 4-hydroxyphenyl or 4-alkylphenyl; then Z is
not hydrogen.
13. A compound according to claim 12 having the formula:
##STR30##
14. A therapeutic composition comprising one or more compounds
selected from formula (I) as defined in claim 12 in association
with one or more pharmaceutical carriers and/or excipients.
15. A compound of formula (I) as defined in claim 12 for use in
treatment, defense against, prophylaxis and or prevention of one or
more therapeutic indications.
16. Use of one or more compounds selected from formula (I) as
defined in claim 12 for the manufacture of a medicament for the
treatment, amelioration, defense against, prophylaxis and/or
prevention of one or more therapeutic indications selected from
coronary artery spasm; hypertension; inflammatory diseases.
17. Use according to claim 16 wherein the inflammatory disease is
inflammatory bowel disease, ulcerative colitis or Crohn's disease.
Description
[0001] This is a continuation of U.S. patent application Ser. No.
10/704,385, filed Nov. 7, 2003; which is a continuation of U.S.
patent application Ser. No. 10/070,361, filed Jul. 8, 2002, now
abandoned; which entered the U.S. National Stage under 35 U.S.C.
.sctn. 371 based on PCT/AU00/01056, filed Sep. 6, 2000; which
claims the benefit of Australian Application No. PQ 2661, filed
Sep. 6, 1999, each of which are hereby incorporated by
reference.
[0002] This invention relates to compounds, formulations, drinks,
foodstuffs, methods and therapeutic uses involving, containing,
comprising, including and/or for preparing certain isoflavone
compounds and analogues thereof.
[0003] According to an aspect of this invention there is provided
isoflavone compounds and analogues thereof of the general formula
I: ##STR1## in which [0004] R.sub.1 and R.sub.2 are independently
hydrogen, hydroxy, OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO,
C(O)R.sub.10, COOH, CO.sub.2R.sub.10, CONR.sub.3R.sub.4, alkyl,
haloalkyl, aryl, arylalkyl, thio, alkylthio, amino, alkylamino,
dialkylamino, nitro or halo, [0005] Z is hydrogen, and [0006] W is
R.sub.1, A is hydrogen, hydroxy, NR.sub.3R.sub.4 or thio, and B is
selected from ##STR2## [0007] W is R.sub.1, and A and B taken
together with the carbon atoms to which they are attached form a
six-membered ring selected from ##STR3## [0008] W, A and B taken
together with the groups to which they are associated comprise
##STR4## [0009] W and A taken together with the groups to which
they are associated comprise ##STR5## [0010] and B is ##STR6##
wherein [0011] R.sub.3 is hydrogen, alkyl, aryl, arylalkyl, an
amino acid, C(O)R.sub.11 where R.sub.11 is hydrogen alkyl, aryl,
arylalkyl or an amino acid, or CO.sub.2R.sub.12 where R.sub.12 is
hydrogen, alkyl, haloalkyl, aryl or arylalkyl, [0012] R.sub.4 is
hydrogen, alkyl or aryl, [0013] or R.sub.3 and R.sub.4 taken
together with the nitrogen to which they are attached comprise
pyrrolidinyl or piperidinyl, [0014] R.sub.5 is hydrogen,
C(O)R.sub.11 where R.sub.11 is as previously defined, or
CO.sub.2R.sub.12 where R.sub.12 is as previously defined, [0015]
R.sub.6 is hydrogen, hydroxy, alkyl, aryl, amino, thio,
NR.sub.3R.sub.4, COR.sub.11 where R.sub.11 is as previously
defined, CO.sub.2R.sub.12 where R.sub.12 is as previously defined
or CONR.sub.3R.sub.4, [0016] R.sub.7 is hydrogen, C(O)R.sub.11
where R.sub.11 is as previously defined, alkyl, haloalkyl, aryl,
arylalkyl or Si(R.sub.13).sub.3 where each R.sub.13 is
independently hydrogen, alkyl or aryl, [0017] R.sub.8 is hydrogen,
hydroxy, alkoxy or alkyl, [0018] R.sub.9 is alkyl, haloalkyl, aryl,
arylalkyl, C(O)R.sub.11 where R.sub.11 is as previously defined, or
Si(R.sub.13).sub.3 where R.sub.13 is as previously defined, [0019]
R.sub.10 is hydrogen, alkyl, haloalkyl, amino, aryl, arylalkyl, an
amino acid, alkylamino or dialkylamino, [0020] the drawing
represents either a single bond or a double bond, [0021] X is O,
NR.sub.4 or S, and [0022] Y is ##STR7## wherein [0023] R.sub.14,
R.sub.15 and R.sub.16 are independently hydrogen, hydroxy,
OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO, C(O)R.sub.10, COOH,
CO.sub.2R.sub.10, CONR.sub.3R.sub.4, alkyl, haloalkyl, aryl,
arylalkyl, thio, alkylthio, amino, alkylamino, dialkylamino, nitro
or halo, with the proviso that when [0024] R.sub.1 is hydroxy, or
OC(O)R.sub.A where R.sub.A is alkyl or an amino acid, and [0025]
R.sub.2 is hydrogen, hydroxy, OR.sub.B where R.sub.B is an amino
acid or C(O)R.sub.A where R.sub.A is as previously defined, and
[0026] W is hydrogen, then [0027] Y is not 4-hydroxyphenyl or
4-alkylphenyl; when [0028] R.sub.1 is hydroxy, or OC(O)R.sub.A
where R.sub.A is alkyl or an amino acid, and [0029] R.sub.2 is
hydrogen, hydroxy, OR.sub.B where R.sub.B is an amino acid or
C(O)R.sub.A where R.sub.A is as previously defined, and [0030] Y is
4-hydroxyphenyl or 4-alkylphenyl, then [0031] W is not hydrogen;
when [0032] R.sub.1 is hydroxy, or OC(O)R.sub.A where R.sub.A is
alkyl or an amino acid, and [0033] Y is 4-hydroxyphenyl or
4-alkylphenyl, and [0034] W is hydrogen, then [0035] R.sub.2 is not
hydrogen, hydroxy, OR.sub.B where R.sub.B is an amino acid or
C(O)R.sub.A where R.sub.A is as previously defined; and when [0036]
R.sub.2 is hydrogen, hydroxy, OR.sub.B where R.sub.B is an amino
acid or C(O)R.sub.A where R.sub.A is as previously defined, and
[0037] Y is 4-hydroxyphenyl or 4-alkylphenyl, and [0038] W is
hydrogen, then [0039] R.sub.1 is not hydroxy, or OC(O)R.sub.A where
R.sub.A is alkyl or an amino acid.
[0040] According to another aspect of this invention there is
provided isoflavone compounds and analogues thereof of the general
formula II: ##STR8## in which [0041] R.sub.1 and R.sub.2 are
independently hydrogen, hydroxy, OR.sub.9, OC(O)R.sub.10,
OS(O)R.sub.10, CHO, C(O)R.sub.10, COOH, CO.sub.2R.sub.10,
CONR.sub.3R.sub.4, alkyl, haloalkyl, aryl, arylalkyl, thio,
alkylthio, amino, alkylamino, dialkylamino, nitro or halo, [0042]
Z.sub.A is OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO,
C(O)R.sub.10, COOH, CO.sub.2R.sub.10, CONR.sub.3R.sub.4, alkyl,
haloalkyl, aryl, arylalkyl, thio, alkylthio, amino, alkyl amino,
dialkyl amino, nitro or halo, and [0043] W is R.sub.1, A is
hydrogen, hydroxy, NR.sub.3R.sub.4 or thio, and B is selected from
##STR9## [0044] W is R.sub.1, and A and B taken together with the
carbon atoms to which they are attached form a six-membered ring
selected from ##STR10## [0045] W, A and B taken together with the
groups to which they are associated comprise ##STR11## [0046] W and
A taken together with the groups to which they are associated
comprise ##STR12## [0047] and B is ##STR13## wherein [0048] R.sub.3
is hydrogen, alkyl, aryl, arylalkyl, an amino acid, C(O)R.sub.11
where R.sub.11 is hydrogen alkyl, aryl, arylalkyl or an amino acid,
or CO.sub.2R.sub.12 where R.sub.12 is hydrogen, alkyl, haloalkyl,
aryl or arylalkyl, [0049] R.sub.4 is hydrogen, alkyl or aryl,
[0050] or R.sub.3 and R.sub.4 taken together with the nitrogen
which they are attached are pyrrolidinyl or piperidinyl, [0051]
R.sub.5 is hydrogen, C(O)R.sub.11 where R.sub.11 is as previously
defined, or CO.sub.2R.sub.12 where R.sub.12 is as previously
defined, [0052] R.sub.6 is hydrogen, hydroxy, alkyl, aryl, amino,
thio, NR.sub.3R.sub.4, COR.sub.11 where R.sub.11 is as previously
defined, CO.sub.2R.sub.12 where R.sub.12 is as previously defined
or CONR.sub.3R.sub.4, [0053] R.sub.7 is hydrogen, C(O)R.sub.11
where R.sub.11 is as previously defined, alkyl, haloalkyl, aryl,
arylalkyl or Si(R.sub.13).sub.3 where each R.sub.13 is
independently hydrogen, alkyl or aryl, [0054] R.sub.8 is hydrogen,
hydroxy, alkoxy or alkyl, [0055] R.sub.9 is alkyl, haloalkyl, aryl,
arylalkyl, C(O)R.sub.11 where R.sub.11 is as previously defined, or
Si(R.sub.13).sub.3 where R.sub.13 is as previously defined, [0056]
R.sub.10 is hydrogen, alkyl, haloalkyl, amino, aryl, arylalkyl, an
amino acid, alkylamino or dialkylamino, [0057] the drawing
represents either a single bond or a double bond, [0058] X is O,
NR.sub.4 or S, and [0059] Y is ##STR14## wherein [0060] R.sub.14,
R.sub.15 and R.sub.16 are independently hydrogen, hydroxy,
OR.sub.9, OC(O)R.sub.10, OS(O)R.sub.10, CHO, C(O)R.sub.10, COOH,
CO.sub.2R.sub.10, CONR.sub.3R.sub.4, alkyl, haloalkyl, aryl,
arylalkyl, thio, alkylthio, amino, alkylamino, dialkylamino, nitro
or halo.
[0061] It has surprisingly been found by the inventors that
compounds of the general formulae I and II: ##STR15## in which
R.sub.1, R.sub.2, W, A, B, Z and Z.sub.A are as defined above have
particular utility and effectiveness in the treatment, prophylaxis,
amelioration defence against, and/or prevention of menopausal
syndrome including hot flushes, anxiety, depression, mood swings,
night sweats, headaches, and urinary incontinence; osteoporosis;
premenstrual syndrome, including fluid retention, cyclical
mastalgia, and dysmenorrhoea; Reynaud's Syndrome; Reynaud's
Phenomenon; Buergers Disease; coronary artery spasm; migraine
headaches; hypertension; benign prostatic hypertrophy; all forms of
cancer including breast cancer; uterine cancer; ovarian cancer;
testicular cancer; large bowel cancer; endometrial cancer;
prostatic cancer; uterine cancer; atherosclerosis; Alzheimers
disease; inflammatory diseases including inflammatory bowel
disease, ulcerative colitis, Crohns disease; rheumatic diseases
including rheumatoid arthritis; acne; baldness including male
pattern baldness (alopecia hereditaria); psoriasis; diseases
associated with oxidant stress including cancer; myocardial
infarction; stroke; arthritis; sunlight induced skin damage or
cataracts.
[0062] Thus according to another aspect of the present invention
there is provided a method for the treatment, prophylaxis,
amelioration, defence against, and/or prevention of menopausal
syndrome including hot flushes, anxiety, depression, mood swings,
night sweats, headaches, and urinary incontinence; osteoporosis;
premenstrual syndrome, including fluid retention, cyclical
mastalgia, and dysmenorrhoea; Reynaud's Syndrome; Reynaud's
Phenomenon; Buergers Disease; coronary artery spasm; migraine
headaches; hypertension; benign prostatic hypertrophy; all forms of
cancer including breast cancer; uterine cancer; ovarian cancer;
testicular cancer; large bowel cancer; endometrial cancer;
prostatic cancer; uterine cancer; artherosclerosis; Alzheimers
disease; inflammatory diseases including inflammatory bowel
disease, ulcerative colitis, Crohns disease; rheumatic diseases
including rheumatoid arthritis; acne; baldness including male
pattern baldness (alopecia hereditaria); psoriasis; diseases
associated with oxidant stress including cancer; myocardial
infarction; stroke; arthritis; sunlight induced skin damage or
cataracts (for convenience hereafter referred to as the
"therapeutic indications") which comprises administering to a
subject a therapeutically effective amount of one or more compounds
of formulae I and II as defined above.
[0063] Yet another aspect of the present invention is the use of
compounds of formulae I and II for the manufacture of a medicament
for the treatment, amelioration, defence against, prophylaxis
and/or prevention of one or more of the therapeutic
indications.
[0064] Still another aspect of the present invention is the use of
one or more compounds of formulae I and II in the treatment,
amelioration, defence against, prophylaxis and/or prevention of one
or more of the therapeutic indications.
[0065] And another aspect of the present invention comprises an
agent for the treatment, prophylaxis, amelioration, defence against
and/or treatment of the therapeutic indications which comprises one
or more compounds of formulae I and II either alone or in
association with one or more carriers or excipients.
[0066] A further aspect of the invention is a therapeutic
composition which comprises one or more compounds of formulae I and
II in association with one or more pharmaceutical carriers and/or
excipients.
[0067] A still further aspect of the present invention is a drink
or food-stuff, which contains one or more compounds of formulae I
and II.
[0068] Another aspect of the present invention is a microbial
culture or a food-stuff containing one or more microbial strains
which microorganisms produce one or more compounds of formulae I
and II.
[0069] Still another aspect of the present invention relates to one
or more microorganisms which produce one or more compounds of
formulae I and II. Preferably the microorganism is a purified
culture, which may be admixed and/or administered with one or more
other cultures which product compounds of formulae I and II.
[0070] Throughout this specification and the claims which follow,
unless the text requires otherwise, the word "comprise", and
variations such as "comprises" or "comprising", will be understood
to imply the inclusion of a stated integer or step or group of
integers or steps but not the exclusion of any other integer or
step or group of integers or steps.
[0071] The term "alkyl" is taken to mean both straight chain and
branched chain alkyl groups such as methyl, ethyl, propyl,
isopropyl, butyl, isobutyl, secbutyl, tertiary butyl, and the like.
The alkyl group has 1 to 10 carbon atoms, preferably from 1 to 6
carbon atoms, more preferably methyl, ethyl propyl or isopropyl.
The alkyl group may optionally be substituted by one or more of
fluorine, chlorine, bromine, iodine, carboxyl,
C.sub.1-C.sub.4-alkoxycarbonyl,
C.sub.1-C.sub.4-alkylamino-carbonyl,
di-(C.sub.1-C.sub.4-alkyl)-amino-carbonyl, hydroxyl,
C.sub.1-C.sub.4-alkoxy, formyloxy,
C.sub.1-C.sub.4-alkyl-carbonyloxy, C.sub.1-C.sub.4-alkylthio,
C.sub.3-C.sub.6-cycloalkyl or phenyl.
[0072] The term "aryl" is taken to include phenyl and naphthyl and
may be optionally substituted by one or more C.sub.1-C.sub.4-alkyl,
hydroxy, C.sub.1-C.sub.4-alkoxy, carbonyl,
C.sub.1-C.sub.4-alkoxycarbonyl, C.sub.1-C.sub.4-alkylcarbonyloxy or
halo.
[0073] The term "halo" is taken to include fluoro, chloro, bromo
and iodo, preferably fluoro and chloro, more preferably fluoro.
Reference to for example "haloalkyl" will include monohalogenated,
dihalogenated and up to perhalogenated alkyl groups. Preferred
haloalkyl groups are trifluoromethyl and pentafluoroethyl.
[0074] Particularly preferred compounds of the present invention
are selected from: ##STR16## ##STR17## ##STR18##
[0075] Compounds of the present invention have particular
application in the treatment of diseases associated with or
resulting from estrogenic effects, androgenic effects, vasodilatory
and spasmodic effects, inflammatory effects and oxidative
effects.
[0076] The amount of one or more compounds of formulae I and II
which is required in a therapeutic treatment according to the
invention will depend upon a number of factors, which include the
specific application, the nature of the particular compound used,
the condition being treated, the mode of administration and the
condition of the patient. Compounds of formulae I or II may be
administered in a manner and amount as is conventionally practised.
See, for example, Goodman and Gilman, The Pharmacological Basis of
Therapeutics, 1299 (7th Edition, 1985). The specific dosage
utilised will depend upon the condition being treated, the state of
the subject, the route of administration and other well known
factors as indicated above. In general, a daily dose per patient
may be in the range of 0.1 mg to 2 g; typically from 0.5 mg to 1 g;
preferably from 50 mg to 200 mg.
[0077] The production of pharmaceutical compositions for the
treatment of the therapeutic indications herein described are
typically prepared by admixture of the compounds of the invention
(for convenience hereafter referred to as the "active compounds")
with one or more pharmaceutically or veterinarially acceptable
carriers and/or excipients as are well known in the art.
[0078] The carrier must, of course, be acceptable in the sense of
being compatible with any other ingredients in the formulation and
must not be deleterious to the subject. The carrier or excipient
may be a solid or a liquid, or both, and is preferably formulated
with the compound as a unit-dose, for example, a tablet, which may
contain from 0.5% to 59% by weight of the active compound, or up to
100% by weight of the active compound. One or more active compounds
may be incorporated in the formulations of the invention, which may
be prepared by any of the well known techniques of pharmacy
consisting essentially of admixing the components, optionally
including one or more accessory ingredients.
[0079] The formulations of the invention include those suitable for
oral, rectal, optical, buccal (for example, sublingual), parenteral
(for example, subcutaneous, intramuscular, intradermal, or
intravenous) and transdermal administration, although the most
suitable route in any given case will depend on the nature and
severity of the condition being treated and on the nature of the
particular active compound which is being used.
[0080] Formulation suitable for oral administration may be
presented in discrete units, such as capsules, sachets, lozenges,
or tablets, each containing a predetermined amount of the active
compound; as a powder or granules; as a solution or a suspension in
an aqueous or non-aqueous liquid; or as an oil-in-water or
water-in-oil emulsion. Such formulations may be prepared by any
suitable method of pharmacy which includes the step of bringing
into association the active compound and a suitable carrier (which
may contain one or more accessory ingredients as noted above). In
general, the formulations of the invention are prepared by
uniformly and intimately admixing the active compound with a liquid
or finely divided solid carrier, or both, and then, if necessary,
shaping the resulting mixture such as to form a unit dosage. For
example, a tablet may be prepared by compressing or moulding a
powder or granules containing the active compound, optionally with
one or more accessory ingredients. Compressed tablets may be
prepared by compressing, in a suitable machine, the compound of the
free-flowing, such as a powder or granules optionally mixed with a
binder, lubricant, inert diluent, and/or surface active/dispersing
agent(s). Moulded tablets may be made by moulding, in a suitable
machine, the powdered compound moistened with an inert liquid
binder.
[0081] Formulations suitable for buccal (sublingual) administration
include lozenges comprising the active compound in a flavoured
base, usually sucrose and acacia or tragacanth; and pastilles
comprising the compound in an inert base such as gelatin and
glycerin or sucrose and acacia.
[0082] Compositions of the present invention suitable for
parenteral administration conveniently comprise sterile aqueous
preparations of the active compounds, which preparations are
preferably isotonic with the blood of the intended recipient. These
preparations are preferably administered intravenously, although
administration may also be effected by means of subcutaneous,
intramuscular, or intradermal injection. Such preparations may
conveniently be prepared by admixing the compound with water or a
glycine buffer and rendering the resulting solution sterile and
isotonic with the blood. Injectable formulations according to the
invention generally contain from 0.1% to 60% w/v of active compound
and are administered at a rate of 0.1 ml/minute/kg.
[0083] Formulations suitable for rectal administration are
preferably presented as unit dose suppositories. These may be
prepared by admixing the active compound with one or more
conventional solid carriers, for example, cocoa butter, and then
shaping the resulting mixture.
[0084] Formulations or compositions suitable for topical
administration to the skin preferably take the form of an ointment,
cream, lotion, paste, gel, spray, aerosol, or oil. Carriers which
may be used include Vaseline, lanoline, polyethylene glycols,
alcohols, and combination of two or more thereof. The active
compound is generally present at a concentration of from 0.1% to
0.5% w/w, for example, from 0.5% to 2% w/w. Examples of such
compositions include cosmetic skin creams.
[0085] Formulations suitable for transdermal administration may be
presented as discrete patches adapted to remain in intimate contact
with the epidermis of the recipient for a prolonged period of time.
Such patches suitably contain the active compound as an optionally
buffered aqueous solution of, for example, 0.1 M to 0.2 M
concentration with respect to the said active compound.
[0086] Formulations suitable for transdermal administration may
also be delivered by iontophoresis (see, for example,
Pharmaceutical Research 3 (6), 318 (1986)) and typically take the
form of an optionally buffered aqueous solution of the active
compound. Suitable formulations comprise citrate or bis/tris buffer
(pH 6) or ethanol/water and contain from 0.1 M to 0.2 M active
ingredient.
[0087] The active compounds may be provided in the form of food
stuffs, such as being added to, admixed into, coated, combined or
otherwise added to a food stuff. The term food stuff is used in its
widest possible sense and includes liquid formulations such as
drinks including dairy products and other foods, such as health
bars, desserts, etc. Food formulations containing compounds of the
invention can be readily prepared according to standard
practices.
[0088] Compounds of the present invention have potent antioxidant
activity and thus find wide application in pharmaceutical and
veterinary uses, in cosmetics such as skin creams to prevent skin
ageing, in sun screens, in foods, health drinks, shampoos, and the
like.
[0089] It has surprisingly been found that compounds of the
formulae I or II interact synergistically with vitamin E to protect
lipids, proteins and other biological molecules from oxidation.
[0090] Accordingly a further aspect of this invention provides a
composition comprising one or more compounds of formulae I or II,
vitamin E, and optionally a pharmaceutically, veterinarially or
cosmetically acceptable carriers and/or excipients.
[0091] Therapeutic methods, uses and compositions may be for
administration to humans or animals, such as companion and domestic
animals (such as dogs and cats), birds (such as chickens, turkeys,
ducks), livestock animals (such as cattle, sheep, pigs and goats)
and the like.
[0092] Compounds of formulae I and II may be prepared by standard
methods known to those skilled in the art. Suitable methods may be
found in, for example, International Patent Application WO 98/08503
which is incorporated herein in its entirety by reference. Methods
which may be employed by those skilled in the art of chemical
synthesis for constructing the general ring structures depicted in
formulae I and II are depicted in schemes 1-8 below. Chemical
functional group protection, deprotection, synthons and other
techniques known to those skilled in the art may be used where
appropriate in the synthesis of the compounds of the present
invention. In the formulae depicted in the schemes below the
moities R.sub.1, R.sub.2, R.sub.6, R.sub.8, R.sub.14, R.sub.15,
R.sub.16, W and X are as defined above. The moiety T is either Z or
Z.sub.A as defined in formulae I or II above. Reduction of the
isoflavone derivatives may be effected by procedures well known to
those skilled in the art including sodium borohydride reduction,
and hydration over metal catalysts such as Pd/C, Pd/CaCO.sub.3 and
Platinum(IV)oxide (Adam's catalyst) in protic or aprotic solvents.
The end products and isomeric ratios can be varied depending on the
catalyst/solvent system chosen. The schemes depicted below are not
to be considered limiting on the scope of the invention described
herein. ##STR19## ##STR20## ##STR21## ##STR22## ##STR23## ##STR24##
##STR25## ##STR26## ##STR27##
EXAMPLE 1
General Syntheses of Substituted Isoflavones
[0093] 6-Chloro-4',7-dihydroxyisoflavone was synthesised by the
condensation of 4-chlororesorcinol with 4-hydroxyphenylacetic acid
to afford 5-chloro-2,4,4'-trihydroxydeoxybenzoin. Cyclisation of
the intermediate deoxybenzoin was achieved by treatment with
dimethylformamide and methanesulfonyl chloride in the presence of
boron triflouride etherate.
[0094] By varying the substitution pattern on the resorcinol or
phenylacetic acid groups numerous other substituted isoflavones can
also be synthesised in a similar manner. For example starting with
5-methyl resorcinol affords 4',7-dihydroxy-5-methylisoflavone,
whilst use of 3-hydroxy phenyl acetic acid in the general synthetic
method affords 3'-hydroxy isoflavone derivatives.
Isoflavan-4-ones
EXAMPLE 2
Synthesis of 6-Chloro-4',7-diacetoxyisoflavone
[0095] A mixture of 6-chloro-4',7-dihydroxyisoflavone (1.25 g, 4.3
mmol), acetic anhydride (7.5 ml) and pyridine (1.4 ml) was heated
in an oil bath at 105-110.degree. C. for 1 h. After cooling the
mixture to room temperature, it was stirred for a further 30 min
during which time the diacetate crystallised from the solution. The
product was filtered, washed thoroughly with aqueous methanol (50%)
and dried to yield 6-chloro-4',7-diacetoxyisoflavone (1.2 g, 75%)
as colourless prisms. .sup.1H NMR (CDCl.sub.3): .delta. 2.32 (s,
3H, OCOCH.sub.3), 2.41 (s, 3H, OCOCH.sub.3), 7.16 (d, 2H, J 8.6 Hz,
ArH), 7.36 (s, 1H, H8), 7.57 (d, 2H, J 8.6 Hz, ArH), 8.00 (s, 1H,
H5), 8.37 (s, 1H, H2).
EXAMPLE 3
Synthesis of 6-Chloro-4',7-diacetoxyisoflavan-4-one
[0096] Adam's catalyst (0.045 g) was added to a solution of
6-chloro-4',7-diacetoxyisoflavone (0.25 g, 0.7 mmol) in ethyl
acetate (30 ml) and the mixture was stirred at room temperature
under a hydrogen atmosphere for 24 h. The catalyst was removed by
filtration through Celite and the resulting filtrate was evaporated
in vacuo. The residue was recrystallised from ethanol to yield
6-chloro-4',7-diacetoxyisoflavan-4-one (0.15 g, 60%) as colourless
plates. .sup.1H NMR (CDCl.sub.3): .delta. 2.29 (s, 3H,
OCOCH.sub.3), 2.37 (s, 3H, OCOCH.sub.3), 3.98 (dd, 1H, J 6.0 Hz,
7.5 Hz, H3), 4.68 (m, 2H, H2), 6.87 (s, 1H, H8), 7.07 (d, 2H, J 8.6
Hz, ArH), 7.27 (d, 2H, J 8.6 Hz, ArH), 8.01 (s, 1H, H5).
EXAMPLE 4
Synthesis of 6-Chloro-4',7-dihydroxyisoflavan-4-one
[0097] Imidazole (0.60 g) was added to a suspension of
6-chloro-4',7-diacetoxyisoflavan-4-one (0.24 g, 0.06 mmol) in
absolute ethanol (5.0 ml) and the mixture was refluxed for 45 min
under argon. The solution was concentrated under reduced pressure
and distilled water (10 ml) was added to the residue. The mixture
was left overnight in the fridge and the resulting precipitate was
filtered, washed with water and dried to yield
6-chloro-4',7-dihydroxyisoflavan-4-one (0.14 g, 75%) as a white
powder. .sup.1H NMR (d.sub.6-acetone): .delta. 3.87 (t, 1H, J 7.2
Hz, H3), 4.64 (d, 2H, J 6.2 Hz, H2), 6.59 (s, 1H, H8), 6.78 (d, 2H,
J 8.7 Hz, ArH), 7.10 (d, 2H, J 8.7 Hz, ArH), 7.70 (bs, 1H, OH),
7.77 (s, 1H, H5).
EXAMPLE 5
Synthesis of 4',7-Diacetoxy-5-methylisoflavone
[0098] A mixture of 4',7-dihydroxy-5-methylisoflavone (1.51 g, 5.6
mmol), acetic anhydride (9 ml) and pyridine (1.7 ml) was heated in
an oil bath at 105-110.degree. C. for 1 h. After cooling the
mixture to room temperature, it was stirred for a further 30 min
during which time the diacetate crystallised from the solution. The
product was filtered, washed thoroughly with water and
recrystallised from methanol to yield
4',7-diacetoxy-5-methylisoflavone as colourless prisms (1.8 g,
91%). m.p. 195-97.degree. C., .sup.1H NMR (CDCl.sub.3): .delta.
2.32 (s, 3H, OCOCH.sub.3), 2.35 (s, 3H, OCOCH.sub.3), 2.87 (s, 3H,
Me), 6.92 (bs, 1H, H8), 7.12 (bs, 1H, H5), 7.16 (d, 2H, J 8.7 Hz,
ArH), 7.55 (d, 2H, J 8.7 Hz, ArH), 7.89 (s, 1H, H2).
EXAMPLE 6
Synthesis of 4',7-Diacetoxy-5-methylisoflavan-4-one
[0099] Palladium on barium sulfate (5%, 0.06 g) was added to a
solution of 4',7-diacetoxy-5-methylisoflavone (0.30 g, 0.8 mmol) in
ethyl acetate (50 ml) and the mixture was stirred at room
temperature under a hydrogen atmosphere for 24 h. The catalyst was
removed by filtration through Celite and the resulting filtrate was
evaporated in vacuo. The residue was recrystallised from ethanol to
yield 4',7-diacetoxy-5-methylisoflavan-4-one (0.20 g, 67%) as
colourless plates. m.p. 143-45.degree. C., .sup.1H NMR
(CDCl.sub.3): .delta. 2.29 (s, 3H, OCOCH.sub.3), 2.30 (s, 3H,
OCOCH.sub.3), 2.62 (s, 3H, Me), 3.95 (t, 1H, J 7.2 Hz, H3), 4.62
(d, 2H, J 6.8 Hz, H2), 6.59 (d, 1H, J 2.2 Hz, H8), 6.66 (d, 1H, J
2.2 Hz, H5), 7.07 (d, 2H, J 8.3 Hz, ArH), 7.28 (d, 2H, J 8.3 Hz,
ArH).
EXAMPLE 7
Synthesis of 4',7-Dihydroxy-5-methylisoflavanone
[0100] Imidazole (0.63 g) was added to a suspension of
4',7-diacetoxy-5-methylisoflavan-4-one (0.50 g, 1.4 mmol) in
absolute ethanol (20.0 ml) and the mixture was refluxed for 45 min
under argon. The solution was concentrated under reduced pressure
and distilled water (10 ml) was added to the residue. The mixture
was left overnight in the fridge and the resulting precipitate was
filtered, washed with water and dried to yield
4',7-dihydroxy-5-methylisoflavan-4-one (0.25 g, 66%) as a white
powder. .sup.1H NMR (d.sub.6-acetone): .delta. 2.51 (s, 3H, Me),
3.76 (t, 1H, J 5.7 Hz, H3), 4.57 (d, 2H, J 7.1 Hz, H2), 6.26 (d,
1H, J 2.2 Hz, H8), 6.35 (d, 1H, J 2.2 Hz, H5), 6.78 (d, 2H, J 8.7
Hz, ArH), 7.11 (d, 2H, J 8.7 Hz, ArH).
Isolflavan-4-ols and Isoflav-3-enes
EXAMPLE 8
Synthesis of 4'-7-Diacetoxy-5-methylisoflavan-4-ol
[0101] 4'-7-Diacetoxy-5-methylisoflavan-4-ol was prepared by the
reduction of 4'-7-diacetoxy-5-methylisoflavone (0.25 g) with Adam's
catalyst in ethyl acetate (30 ml) under a hydrogen atmosphere for
72 hours. The solution was filtered through a pad of Celite to
yield predominantly cis-4'-7-diacetoxy-5-methylisoflavan-4-ol.
.sup.1H NMR (CDCl.sub.3): .delta. 2.26 (s, 3H, OCOCH.sub.3), 2.30
(s, 3H, OCOCH.sub.3), 2.62 (s, 3H, Me), 3.24 (dt, 1H, J 3.4 Hz, J
11.8 Hz, H3), 4.31 (ddd, 1H, J 1.4 Hz, 3.6 Hz, 10.5 Hz, H2); 4.57
(dd, 1H, J 10.5 Hz, 11.8 Hz, H2), 4.82 (bs, 1H, H4), 6.51 (d, 1H, J
2.1 Hz, H8), 6.59 (d, 1H, J 2.1 Hz, H6), 7.06 (d, 2H, J 8.6 Hz,
ArH), 7.29 (d, 2H, J 8.6 Hz ArH).
EXAMPLE 9
Synthesis of 4',7-Diacetoxy-5-methylisoflav-3-ene
[0102] 4',7-Diacetoxy-5-methylisoflav-3-ene was prepared by the
dehydration of cis- and trans-4'-7-diacetoxy-5-methylisoflavan-4-ol
(0.2 g) with phosphorus pentoxide (2.0 g) in dry dichloromethane
(20 ml). The crude product was chromatographed on silica column
using dichloromethane as the eluent. .sup.1H NMR (CDCl.sub.3):
.delta. 2.28 (s, 3H, OCOCH.sub.3), 2.31 (s, 3H, OCOCH.sub.3), 2.36
(s, 3H, Me), 5.08 (s, 2H, H2), 6.49 (d, 1H, J 2.0 Hz, H8), 6.52 (d,
1H, J 2.2 Hz, H5), 6.89 (s, 1H, H4), 7.14 (d, 2H, J 8.6 Hz, ArH),
7.44 (d, 2H, J 8.6 Hz, ArH).
EXAMPLE 10
Synthesis of 4',7-Dihydroxy-5-methylisoflav-3-ene
[0103] 4',7-Dihydroxy-5-methylisoflav-3-ene was prepared from
4',7-diacetoxy-5-methylisoflav-3-ene by the removal of the acetoxy
groups by hydrolysis under standard conditions.
EXAMPLE 11
Synthesis of 3',5,7-Trihydroxyisoflavylium chloride
[0104] Phosphoryl chloride (1.75 ml) was added to a mixture of the
monoaldehyde (0.95 g) and phloroglucinol dihydrate (1.6 g) in
acetonitrile (10 ml). The mixture was stirred at 30.degree. C. for
20 minutes and then at room temperature for 3 hours. The orange
precipitate was filtered and washed with acetic acid to yield the
isoflavylium salt.
EXAMPLE 12
Synthesis of Isoflav-3-ene-3',5,7-triol
[0105] Isoflav-3-ene-3',5,7-triol was prepared by the reduction of
3',5,7-trihydroxyisoflavylium chloride (0.5 g) with sodium
cyanoborohydride (0.33 g) in ethyl acetate (11 ml) and acetic acid
(3 ml) and chromatographic separation of the resulting mixture of
isoflav-3-ene and isoflav-2-ene mixture. .sup.1H NMR
(d.sub.6-acetone): .delta. 4.99 (s, 2H, H2), 5.92 (d, 1H, J 2.0 Hz,
ArH), 6.04 (d, 1H, J 2.2 Hz, ArH), 6.78-7.18 (m, 5H, ArH).
Isoflavans
EXAMPLE 13
Synthesis of Isoflavan-5,7-diol
[0106] Isoflavan-5,7-diol was prepared by the reduction of a
suspension of 5,7-dihydroxyisoflavylium chloride (0.5 g) with
Palladium-on-charcoal (5%, 0.1 g) in acetic acid (15 ml) containing
ethyl acetate (2.5 ml) under a hydrogen atmosphere. The crude
product was recrystallised from 1,2-dichloromethane to give the
isoflavan as colourless needles, m.p. 76-78.degree. C. (lit m.p.
77-79.degree. C.).
EXAMPLE 14
Synthesis of 4',5,7-Triacetoxyisoflavan
[0107] 4',5,7-Triacetoxyisoflavan was prepared by the reduction of
a suspension of 4',5,7-trihydroxyisoflavylium chloride (0.31 g)
with platinum oxide (0.04 g) in a mixture of acetic anhydride (2.0
ml) and ethyl acetate (10 ml) under a hydrogen atmosphere. After
the removal of catalyst the crude product was refluxed with
pyridine (0.5 ml) and the resulting triacetate was isolated by
evaporation of the solvent and crystallisation of the residue. M.p.
126-28.degree. C.
EXAMPLE 15
Synthesis of Isoflavan-4',5,7-triol
[0108] Isoflavan-4',5,7-triol was prepared from
4',5,7-triacetoxyisoflavan by the removal of the acetyl groups by
hydrolysis. M.p. 206-8.degree. C.
EXAMPLE 16
[0109] The binding affinity of various compounds of the invention
for both subtypes of the estrogen receptor was determined with the
"Estrogen Receptor Alpha or Beta Competitor Assay Core HTS Kit"
supplied by Panvera Corporation (Product No. P2614/2615).
6-Chloro-4',7-dihydroxyisoflavan-4-one showed good competitive
binding to the estrogen receptor with the following results:
ER alpha receptor=37.82 uM
ER beta receptor=32.14 uM
[0110] The results show that the compounds of the present invention
have particular application in the treatment of diseases associated
with or resulting from estrogenic effects, androgenic effects,
vasodilatory and spasmodic effects, inflammatory effects and
oxidative effects.
[0111] Those skilled in the art will appreciate that the invention
described herein is susceptible to variations and modifications
other than those specifically described. It is to be understood
that the invention includes all such variations and modifications.
The inventions also includes all of the steps, features,
compositions and compounds referred to or indicated in the
specification, individually or collectively, and any and all
combinations of any two or more of said steps or features.
* * * * *