Q Contains An Ortho-hydroxy Naphthyl Bicyclo Ring System, Or Its Partially Hydrogenated Form, Bonded Directly To The Carbonyl (h Of -oh May Be Replaced By A Substituted Or Unsubstituted Ammonium Ion Or A Group Ia Or Iia Light Metal) Patents (Class 564/173)
  • Publication number: 20140243335
    Abstract: This invention provides compounds of formula (I): wherein R1, R1b, R2a, R2b, R2c, and R2d have values as described in the specification, useful as inhibitors of HDAC6. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of proliferative, inflammatory, infectious, neurological or cardiovascular diseases or disorders.
    Type: Application
    Filed: May 5, 2014
    Publication date: August 28, 2014
    Applicant: Millennium Pharmaceuticals, Inc.
    Inventors: Christopher Blackburn, Emily F. Calderwood, Kenneth M. Gigstad, Alexandra E. Gould, Sean J. Harrison, He Xu
  • Publication number: 20110301179
    Abstract: A compound (particularly useful for inhibiting cancer) according to formula I: or a pharmaceutically acceptable salt thereof, wherein: x is 0 or 1; R1-R6 are each independently H, —CN, —NO2, —NO, —OH, halogen, hydroxyalkyl, carboxyl, substituted carboxyl, aminocarbonyl, alkoxy, carbonyl or substituted carbonyl; R7 is H, alkyl, alkyl amino, aminoacyl, hydroxyacyl, heteroaryl, heterocycloalkyl, alkyl heteroaryl or alkyl heterocycloalkyl; R8 is H or alkyl; A is O or N; and Ar is an aryl, substituted aryl, heteroaryl, or substituted heteroaryl, provided that if R7 is H then Ar is aryl substituted with alkyl amino.
    Type: Application
    Filed: October 21, 2009
    Publication date: December 8, 2011
    Inventors: Xiangshu Xiao, Bingbing Li
  • Publication number: 20110136807
    Abstract: The invention relates to compounds and methods for modulating one or more components of a kinase cascade.
    Type: Application
    Filed: June 29, 2007
    Publication date: June 9, 2011
    Applicant: Kinex Pharmaceuticals, LLC
    Inventor: David G. Hangauer, JR.
  • Publication number: 20100144778
    Abstract: The present invention encompasses compounds of Formula (I): as well as pharmaceutically acceptable salts and hydrates thereof, that are useful for treating atherosclerosis, dyslipidemias and the like. Pharmaceutical compositions and methods of use are also included.
    Type: Application
    Filed: June 26, 2006
    Publication date: June 10, 2010
    Inventors: Subharekha Raghavan, Steven L. Colletti, Fa-Xiang Ding, Hong Shen, James R. Tata, Ashley Rouse Lins, Abigail Lee Smenton, Weichun Chen, Darby Rye Schmidt, George Scott Tria
  • Patent number: 6653309
    Abstract: The present invention relates to compounds which inhibit IMPDH. This invention also relates to pharmaceutical compositions comprising these compounds. The compounds and pharmaceutical compositions of this invention are particularly well-suited for inhibiting IMPDH enzyme activity and consequently, may be advantageously used as therapeutic agents for IMPDH mediated processes. This invention also relates to methods for inhibiting the activity of IMPDH using the compounds of this invention and related compounds.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: November 25, 2003
    Assignee: Vertex Pharmaceuticals Incorporated
    Inventors: Jeffrey O. Saunders, Daniel Elbaum, Perry M. Novak, Douglas Naegele, Randy S. Bethiel, Steven M. Ronkin, Michael C. Badia, Catharine Frank, Dean P. Stamos, William Walters, David Pearlman
  • Patent number: 6506788
    Abstract: The present invention relates to pharmaceutical compositions comprising and methods of using an N-linked urea or carbamate of a heterocyclic thioester for treating a vision disorder, improving vision, treating memory impairment, or enhancing memory performance.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: January 14, 2003
    Assignee: GPI Nil Holdings, Inc.
    Inventors: Douglas T. Ross, Hansjörg Sauer, Gregory S. Hamilton, Joseph P. Steiner
  • Patent number: 6495546
    Abstract: Propanolamine derivatives represented by the following formula (I): These derivatives may be &bgr;3 agonists and exert sympathomimetic, anti-ulcerous, anti-pancreatitis, lipolytic and anti-urinary incontinence and anti-pollakiuria activities. Pharmaceutical compositions containing such propanolamine derivatives, methods for the prevention and/or treatment diseases using these propanolamine derivatives, and processes for their preparation are also described.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: December 17, 2002
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Kiyoshi Taniguchi, Minoru Sakurai, Naoaki Fujii, Kumi Hosoi, Yasuyo Tomishima, Hisashi Takasugi, Hajime Sogabe, Hirofumi Ishikawa, Naomi Hanioka
  • Patent number: 6423870
    Abstract: The invention concerns compounds of formula (I) in which: A forms a tricyclic system of formula A1, A2, A3 or A4; R1 represents a hydrogen atom, an alkyl, hydroxy, alkoxy or oxo group; (R2)m and (R3)m′ are such as defined in the description; n represents an integer such that 0≦n≦3; p represents an integer such as defined in the description; B represents a group (a) or (b). The invention is useful for preparing medicines.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 23, 2002
    Assignee: Les Laboratoires Servier
    Inventors: Michel Langlois, Monique Mathe-Allainmat, Carole Jellimann, Jean Andrieux, Caroline Bennejean, Pierre Renard, Philippe Delagrange
  • Patent number: 6326510
    Abstract: The invention relates to novel biaromatic compounds having general formula I and their use in pharmaceutical compositions for use in human and veterinary medicine, in particular for treating dermatological, rheumatic, respiratory, cardiovascular, and ophthalmological disorders, and for use in cosmetic compositions.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: December 4, 2001
    Assignee: Centre International de Recherches Dermatologiques
    Inventor: Jean-Michel Bernardon
  • Patent number: 6242609
    Abstract: A method for manufacturing a color coupler used in a silver halide photographic light-sensitive material using an ammonium trihalide. Said method for manufacturing the color coupler comprising the following step: a step for halogenating a coupling position of a four equivalent coupler using a halogenating agent, wherein said halogenating agent is said ammonium trihalide.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: June 5, 2001
    Assignee: Konica Corporation
    Inventor: Fumio Ishii
  • Patent number: 6162445
    Abstract: Novel pharmaceutically/cosmetically-active polyaromatic propynyl compounds have the structural formula (I): in which X is one of the radicals: ##STR1## and are useful for the treatment of a wide variety of disease states, whether human or veterinary, for example dermatological, rheumatic, respiratory, cardiovascular and ophthalmological disorders, as well as for the treatment of mammalian skin and hair conditions/disorders.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: December 19, 2000
    Assignee: Centre International de Recherches Dermatologiques Galderma
    Inventor: Jean-Michel Bernardon
  • Patent number: 6048877
    Abstract: Tetralone derivatives of the formula ##STR1## where R.sup.1 is halo, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, (aryl)alkenyl, (aryl)alkynyl, alkoxy, O-alkenyl, O-aryl, O-alkyl(heterocyclo), COO-alkyl,alkanoyl, CO-amino, CO-substituted amino, alkyl-CO-amino, alkyl-CO-substituted amino, NHCO-alkyl, NHCO-aryl, NHCO-alkyl(heterocyclo), N(alkyl)CO-alkyl, N(alkyl)CO-aryl, N(alkyl)CO-heterocyclo, N(alkyl)CO-alkyl(heterocyclo);R.sup.2 is hydrogen, alkyl, halo, aryl, alkoxy, amino, substituted amino;R.sup.3 is oxo, hydroxy, alkoxy, O--COalkyl, --O--COaryl, --O--COheterocyclo, NOH, NO-alkyl, N-amino, N-substituted amino, N-NHCONHalkyl, N-NHSO.sub.2 alkyl, N-NHSO.sub.2 aryl, amino, substituted amino, NHCO-alkyl, NHCO-aryl, NHCO-heterocyclo, spiroheterocyclo;R.sup.4 is hydrogen, alkyl, alkyl(COalkyl), alkyl(COOalkyl); orR.sup.3 and R.sup.4 taken together with the atoms to which they are attached form a five- to seven-membered ring which can contain up to three heteroatoms selected from oxygen, nitrogen and sulfur;R.sup.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: April 11, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Saleem Ahmad, Philip D. Stein, Francis N. Ferrara, Karnail S. Atwal
  • Patent number: 5827891
    Abstract: HIV protease inhibitors, obtainable by chemical synthesis, inhibit or block the biological activity of the HIV protease enzyme, causing the replication of the HIV virus to terminate. These compounds, as well as pharmaceutical compositions that contain these compounds and optionally other anti-viral agents as active ingredients, are suitable for treating patients or hosts infected with the HIV virus, which is known to cause AIDS.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 27, 1998
    Assignee: Agouron Pharmaceuticals, Inc.
    Inventors: Bruce A. Dressman, James E. Fritz, Marlys Hammond, William J. Hornback, Stephen W. Kaldor, Vincent J. Kalish, John E. Munroe, Siegfried Heinz Reich, John H. Tatlock, Timothy A. Shepherd, Michael J. Rodriguez
  • Patent number: 5674905
    Abstract: Compounds of formula (I), wherein A is selected from (a), (b), (c), (d), (e), (f) and B is selected from (g), (h), and (i), wherein W is a carbonyl, sulphonyl or sulphinyl group, and X is a carbonyl, sulphonyl or sulphinyl group or --C(O)--CH.sub.2 -- (in which the carbonyl group is bonded to Y), provided that at least one of W and X contains carbonyl, Y is R.sub.9 --O-- or R.sub.9 --N(R.sub.10)--, Z is selected from (i), (ii), (iii), (iv) or Z is absent and W is H, with a number of provisions and phamaceutically acceptable salts thereof are ligands at CCK and/or gastrin receptors.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: October 7, 1997
    Assignee: James Black Foundation Limited
    Inventors: Sarkis Barret Kalindjian, Caroline Minli Rachel Low, Michael John Pether, Jonathan Michael Richard Davies, David John Dunstone, Iain Mair McDonald
  • Patent number: 5656619
    Abstract: Abstract of the Disclosure: Diphenylheteroalkyl derivatives of the formula I ##STR1## where A and R.sup.1 -R.sup.6 have the meanings specified in the description, and the preparation thereof are described.The substances are suitable for controlling diseases and as cosmetic agents.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 12, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Janssen, Hans-Heiner Wuest
  • Patent number: 5434188
    Abstract: 1-Ether and 1-thioether-naphthalene-2-carboxamides are described, methods of manufacture therefor and their use as agents which inhibit leukocyte adherence to vascular endothelium and, as such, are effective therapeutic agents for treating inflammatory diseases, and their utility in inhibiting the activation of human immunodeficiency virus (HIV), latent in infected humans.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: July 18, 1995
    Assignee: Warner-Lambert Company
    Inventors: Diane H. Boschelli, David T. Connor, Sony S. Khatana, James B. Kramer, Paul C. Unangst
  • Patent number: 5319139
    Abstract: Compounds of the formula: ##STR1## where R.sup.1 is a hydrogen atom or a lower alkyl group;R.sub.2 is a lower alkoxy group;R.sub.3 is a group ##STR2## Z is represented by the formula: ##STR3## where R.sub.2 and R.sub.3 may be the same or different from each other and each stands for a hydrogen atom or a lower alkyl;Y is represented by the formula: --(CH.sub.2).sub.n -- where n is 0 or an integer of 1 to 2 or a group represented by the formula: ##STR4## where R.sup.2 and R.sup.3 may be the same or different from each other and each stands for a lower alkyl group; andR.sup.4 represents a group of the formula: ##STR5## where p is 0 or an integer of 1 to 3 and R.sup.12 is hydrogen, a halogen atom, a lower alkyl or a lower alkoxy group a hydrogen atom, R.sup.2 is a methoxy group, R.sup.3 is a hydroxy group and R.sup.4 is a benzyl group having anti-inflammatory activity.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: June 7, 1994
    Assignee: Eisai Co. Ltd.
    Inventors: Hiroyuki Yoshimura, Shinya Abe, Tetsuya Kawahara, Naoyuki Shimomura, Kazuo Okano, Richard S. J. Clark, Takashi Mori, Shuhei Miyazawa, Ryoichi Hashida, Kenzo Muramoto, Koukichi Harada, Takashi Inoue, Hirsohi Shirota, Kenichi Chiba, Kenichi Kusube, Toru Horie, Takeshi Suzuki, Isao Yamatsu
  • Patent number: 5302753
    Abstract: Disclosed is the anilide coupler 2,8-dihydroxy-3-naphthanilide; and the anilide coupler of the formula ##STR1## wherein Ar' is an aromatic group.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: April 12, 1994
    Assignee: Xerox Corporation
    Inventors: Kock-Yee Law, Ihor W. Tarnawskyj
  • Patent number: 5245028
    Abstract: Processes for the preparation of a series of tetracyclic amines useful in the treatment and/or prevention of cerebrovascular disorders are disclosed.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: September 14, 1993
    Assignee: Warner-Lambert Company
    Inventor: Thomas C. Malone
  • Patent number: 5128479
    Abstract: Oxidized diphenylheteroalkanes of the formula I ##STR1## where R.sup.1 to R.sup.6 and A have the meanings specified in the description, and the preparation thereof are described. The substances are suitable for controlling diseases and as cosmetic agents.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: July 7, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Janssen, Hans-Heiner Wuest
  • Patent number: 5126371
    Abstract: Novel diarylacetylenes of the formula I ##STR1## where A, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meanings stated in the description, are useful for the treatment of disorders.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: June 30, 1992
    Assignee: BASF Akteingesellschaft
    Inventors: Hans-Heiner Wuest, Fritz-Frieder Frickel, Axel Nuerrenbach
  • Patent number: 5107013
    Abstract: Naphthalenes of formula ##STR1## wherein X represents COCH.sub.3, COC.sub.2 H.sub.5, CH(CH.sub.3)COOH, CH(CH.sub.3)COOR, CH(CH.sub.3)CN and CH(CH.sub.3)CONHR.sub.1, R represents alkyl and R.sub.1 represents hydrogen, alkyl or hydroxyalkyl, are debrominated by means of acceptors of bromine, like alkylarenes and alkoxyarenes, in the presence of Lewis acids.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: April 21, 1992
    Assignee: Alfa Wassermann S.p.A.
    Inventors: Vincenzo Cannata, Claudio Calzolari, Giancarlo Tamerlani
  • Patent number: 5041639
    Abstract: New polysubstituted derivatives of naphthalene. These derivatives correspond to the following formula: ##STR1## in which: R.sub.1 to R.sub.4 is H or CH.sub.3R.sub.5 is ##STR2## or (iv) the radical: 2-oxazolinyl m is 0 or 1R.sub.8.sbsb.r is H, alkyl, OR.sub.11, R.sub.11 being H, alkyl or ##STR3## R.sub.13 being alkyl or aryl or R.sub.8 is ##STR4## when m=1, r' and r" representing H, alkyl mono or polyhydroxyalkyl, aryl or a heterocycle when they are taken together, R.sub.9 is H or alkyl, R.sub.10 is H, alkyl and the acetals of the said compounds ##STR5## --OR.sub.14, R.sub.14 being H, alkyl, mono or polyhydroxyalkyl, aryl or aralkyl a rest of a sugar or represents ##STR6## being 0, 1, 2 or 3 R.sub.6 represents a hydrogen atom or a lower alkyl radical,R.sub.7 represents H, alkyl, halogen, hydroxyl, sulfydryl, alkoxy, alkylthio, acyloxy, acylthio, acylamino or primary, secondari or tertiary amino and the salts of the said compounds.These compounds find an application in the cosmetic and pharmaceutical fields.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: August 20, 1991
    Assignee: Centre International de Recherches Dermatologiques C.I.R.D.
    Inventors: Braham Shroot, Jacques Eustache, Martine Bouclier
  • Patent number: 4940696
    Abstract: A benzonaphthalene compound has the formula ##STR1## wherein R.sub.1 represents ##STR2## or (ii) --CH.sub.2 OH; R.sub.6 represents ##STR3## or OR.sub.7 wherein R.sub.7 represents hydrogen, alkyl having 1-20 carbon atoms, monohydroxyalkyl or polyhydroxyalkyl, r' or r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or a residue of an amino acid or a sugar, or together form a heterocycle; R.sub.2 represents hydrogen, alkyl having 1-15 carbon atoms, alkoxy having 1-4 carbon atoms or a cycloaliphatic radical; R.sub.3 represents hydrogen, hydroxy, alkyl having 1-4 carbon atoms, alkoxy having 1-10 carbon atoms, a cycloaliphatic radical, a thiocycloaliphatic radical or --O--Si(CH.sub.3).sub.2 --R.sub.8 wherein R.sub.8 represents lower alkyl; and R.sub.4 and R.sub.5 represent hydrogen, lower alkyl, hydroxy or lower acyloxy.This compound is useful in the topical and systemic treatment of dermatologic diseases and in the treatment of the degeneration of conjunctive tissues.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: July 10, 1990
    Assignee: Centre International de Recherches Dermatologioues (CIRD)
    Inventors: Braham Shroot, Jacques Eustache, Jean-Michel Bernardon
  • Patent number: 4939133
    Abstract: The present invention relates to novel N-substituted 2-hydroxybenzamide and N-substituted 2-hydroxy-.alpha.-oxo-benezene acetamide compounds pharmaceutical compositions, and methods of use for therefore for the treatment of diseases in which products having lipoxygenase enzyme activity contribute to the pathological condition. Selected novel intermediates are also the present invention.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: July 3, 1990
    Assignee: Warner-Lambert Company
    Inventors: David T. Connor, Daniel L. Flynn, Wiaczeslaw A. Cetenko, Jagadish C. Sircar, Charles F. Schwender, Elizabeth A. Johnson, Roderick J. Sorenson, Paul C. Unangst
  • Patent number: 4888355
    Abstract: A compound selected from the group consisting of all enantiomeric and diastereoisomeric forms possible of compounds of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, halogen, and alkyl and alkoxy of 1 to 5 carbon atoms, R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms, one of A and B being ##STR2## and the other being ##STR3## R is hydrogen or alkyl of 1 to 5 carbon atoms, Z is --(CH.sub.2).sub.n -- or branched alkylene of 2 to 8 carbon atoms, n is an integer from 0 to 5, Y is selected from the group consisting of naphthyl, indenyl, heterobicyclics and heteromonocyclic containing 5 to 6 ring members, all optionally substituted with at least one member of the group consisting of alkyl and alkoxy of 1 to 5 carbon atoms, halogen, --OH, --CF.sub.3, --NO.sub.2, --NH.sub.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: December 19, 1989
    Assignee: Roussel Uclaf
    Inventors: Francois Clemence, Odile Le Martret, Michel Fortin, Francoise Delevallee
  • Patent number: 4709077
    Abstract: Novel 7-(Aryloxy)-2-naphthoxyalkanecarboxylic acid derivatives of the formula I ##STR1## in racemic or separated isomeric form, have herbicidal activity.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: November 24, 1987
    Assignee: Schering Aktiengesellschaft
    Inventors: Michael Harre, Hans-Rudolf Kruger, Friedrich Arndt, Reinhart Rusch
  • Patent number: 4657581
    Abstract: An amide compound of formula 1: ##STR1## wherein R is 1,2,3,4-tetrahydro-1-naphthyl, 1,4-dihydro-1-naphthyl or 3,4-dihydro-1-naphthyl; R.sub.1 is hydrogen or methyl; R.sub.2 is hydrogen or an alkyl; Ar is a phenylene group; and X is hydrogen, a halogen, methyl or methoxy. This amide is useful as a herbicide.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: April 14, 1987
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Tetsuo Takematsu, Yasutomo Takeuchi, Kozo Hiraishi, Toshikazu Fujii, Shoji Nishimula, Motoyuki Suzuki, Masahiro Sato, Hiroshi Hayashi
  • Patent number: 4386080
    Abstract: Novel 3,4-disubstituted-N-acylanilines of the formula: ##STR1## wherein R.sup.1, R.sup.2 and ring A are defined in claim 1; wherein R.sup.3 is hydrogen or alkyl of up to 4 carbon atoms, or is joined to R.sup.5 as stated below;wherein R.sup.4 is alkyl of 2 to 4 carbon atoms, or has the formula --CX.sup.1 X.sup.2 X.sup.3 wherein X.sup.1, X.sup.2 and X.sup.3, which may be the same or different, each is hydrogen, fluorine or chlorine; wherein R.sup.5 is hydrogen, hydroxy or alkoxy or acyloxy each of up to 15 carbon atoms, or is joined to R.sup.3 to form an oxycarbonyl group such that together with the ##STR2## part of the molecule it forms an oxazolidinedione group; and wherein R.sup.6 is hydrogen or halogen. These compounds possess antiandrogenic activity and are useful for the treatment of androgen dependent or prostatic diseases. Representative of the compounds is 3,4-dichloro-N-(2-hydroxy-2-p-nitrophenylpropionyl)aniline.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: May 31, 1983
    Assignee: Imperial Chemical Industries Limited
    Inventors: Neville S. Crossley, Alasdair T. Glen, Leslie R. Hughes
  • Patent number: T103402
    Abstract: Couplers of good reactivity contain an aryloxy coupling-off group having in an ortho position a polarizable carbonyl, sulfonyl or phosphinyl substituent group which is free of photographic dye groups and photographic reagent groups.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: September 6, 1983
    Inventor: Philip T. S. Lau
  • Patent number: RE34805
    Abstract: A benzonaphthalene compound has the formula ##STR1## wherein R.sub.1 represents ##STR2## or (ii) --CH.sub.2 OH; R.sub.6 represents ##STR3## or OR.sub.7 wherein R.sub.7 represents hydrogen, alkyl having 1-20 carbon atoms, monohydroxyalkyl or polyhydroxyalkyl, r' or r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or a residue of an amino acid or a sugar, or together form a heterocycle; R.sub.2 represents hydrogen, alkyl having 1-15 carbon atoms, alkoxy having 1-4 carbon atoms or a cycloaliphatic radical; R.sub.3 represents hydrogen, hydroxy, alkyl having 1-4 carbon atoms, alkoxy having 1-10 carbon atoms, a cycloaliphatic radical, a thiocycloaliphatic radical or --O--Si(CH.sub.3).sub.2 --R.sub.8 wherein R.sub.8 represents lower alkyl; and R.sub.4 and R.sub.5 represent hydrogen, lower alkyl, hydroxy or lower acyloxy.This compound is useful in the topical and systemic treatment of dermatologic diseases and in the treatment of the degeneration of conjunctive tissues.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: December 6, 1994
    Assignee: Centre International de Recherches Dermatologiques (CIRD)
    Inventors: Braham Shroot, Jacques Eustache, Jean-Michel Bernardon