Plural Ring Hetero Atoms In The Tetracyclo Ring System Patents (Class 548/421)
  • Patent number: 5843937
    Abstract: The present invention relates to novel DNA alkylating agents and the prodrugs of these agents which are useful as antitumor agents and DNA labelling agents. The compounds are hydroxy dihydrobenzindole oligopeptides and prodrugs thereof wherein the monomeric constituents are derived from monocyclic or bicyclic heterocyclic aromatic residues.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: December 1, 1998
    Assignee: Panorama Research, Inc.
    Inventors: Yuqiang Wang, Susan C. Wright, James W. Larrick
  • Patent number: 5786377
    Abstract: The pyrrolo?3,2-e! derivatives of the present invention have the formulae (I), (Ia) and (II) wherein R is substituted or unsubstituted aryl or heteroaryl, R' is substituted or unsubstituted alkanoyl, alkenoyl, alkynoyl, arenocarbonyl or heteroarenocarbonyl and X is chloro, bromo, iodo or alkylsulfonyl or arylsulfonyl. The compounds find utility as agents having antitumor activity, and are thus useful agents in the treatment of cancer.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: July 28, 1998
    Assignee: Universidad de Santiago de Compostela
    Inventors: Jose Delamano Garcia, Gabriel Tojo Suarez, Carmen Lopez Goti, Jesus Fernandez Almeida, Dolores Garcia Gravalos, Glynn Thomas Faircloth
  • Patent number: 5786486
    Abstract: Acrylamide derivatives represented by General Formula (1) below: ##STR1## (One specific example of General Formula (1) is methyl (S,S)-3,3'-?3,3'-(1,4-phenylenediacryloyl)!-bis?1-chloromethyl-5-hydroxy-7 -triflouromethyl-1, 2,3,6-tetrahydropyrrolo?3,2-e!indole-8-carboxylate.)The acrylamide derivatives represented by General Formula (1) is highly selective to cancer cells, less toxic, and highly active also against solid tumor.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: July 28, 1998
    Assignees: Kyorin Pharmaceutical Co., Ltd., Sagami Chemical Research Center
    Inventors: Yasumichi Fukuda, Shigeki Seto, Yasuo Oomori, Hiroyuki Ebisu, Shiro Terashima
  • Patent number: 5754271
    Abstract: The invention relates to photochromic compounds of general formula: ##STR1## wherein R.sup.a, R.sup.b and R.sup.c is denote hydrogen; alkyl; aryl; OR, SR, COR or COOR, in which R denotes hydrogen, alkyl or aryl, amino of formula NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2 denote hydrogen, alkyl, cycloalkyl or an aryl; a halogen atom; a mono- or polyhaloalkyl group; or an NO.sub.2, CN or SCN group; n and m denote integers from 1 to 5; p is equal to 1 or 2; and H is a 5-members aromatic heterocycle containing one or more heteroatoms selected from nitrogen, oxygen and sulfur, these heterocyclic nuclei being eventually substituted by one or more alkyl, alkoxy, amino, aryl or aralkyl groups or condensed with a phenyl nucleus, a substituted phenyl nucleus or a 6-members cycloaliphatic nucleus and to their use in ophtalmic optics.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: May 19, 1998
    Assignee: Essilor International (Compagnie General d'Optique)
    Inventors: Robert Guglielmetti, Jean Luc Pozzo, Andre Samat
  • Patent number: 5747520
    Abstract: Azatoxin and derivatives thereof are illustrative of a new class of antitumor drugs that are topoisomerase II (top 2) inhibitors. The pharmacophore inhibits the catalytic activity of the purified enzyme but does not unwind relaxed or supercoiled DNA. It is nonintercalative and has at least two domains: a quasi-planar polycyclic ring system, which may bind between DNA base pairs, and a pendant substituent thought to interact with the enzyme, with the DNA grooves or with both. In SV40 and c-myc DNA, azatoxin induces numerous double-strand breaks according to a cleavage pattern which differs from those of known top 2 inhibitors. Azatoxin also is a potent inhibitor of tubulin polymerization.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: May 5, 1998
    Inventors: Yves Pommier, Timothy Lee MacDonald, Jose S. Madalengoitia
  • Patent number: 5739350
    Abstract: This invention provides some new synthetically obtained compounds of formula I and II ##STR1## which are useful as chemical intermediates. Representative formula I or II compounds have also been shown to possess useful ranges of antitumor activity in standard laboratory animal tests.In addition, the compounds of formula I or II can be linked to monoclonal antibodies, either directly or via known linking group, as a means of selectively delivering the CC-1065 analogs (Compounds of Formula I and II) to those target cells expressing the target antigen and thus selectively eliminating those diseased cells from the animal or human. Further, the compounds of formula I and II can be linked to soluble human CD4 or a soluble human CD4 protein fragment capable of binding to the gp120 envelope protein of the human immuno-virus and thus eliminate virally infected cells.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 14, 1998
    Assignee: Pharmacia & Upjohn Company
    Inventors: Robert C. Kelly, Mark A. Mitchell, Paul A. Aristoff
  • Patent number: 5726186
    Abstract: The present invention provides compounds of formula I: ##STR1## wherein X is --O-- or --S--,Y is --O--, --S--, --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, or --NR.sup.5 --;R.sup.1, R.sup.2, and R.sup.3 are each independently --H, --OH, --O(C.sub.1 -C.sub.4 alkyl), --OCOC.sub.6 H.sub.5, --OCO(C.sub.1 -C.sub.6 alkyl), --OSO.sub.2 (C.sub.4 -C.sub.6 alkyl), --OSO.sub.2 CF.sub.3, Cl, or F;n is 1 or 2;W is CH.sub.2 or C.dbd.O;R.sup.4 is 1-piperidinyl, 2-oxo-1-piperidinyl, 1-pyrrolidinyl, methyl-1-pyrrolidinyl, dimethyl-1-pyrrolidinyl, 2-oxo-1-pyrrolidinyl, 4-morpholino, dimethylamino, diethylamino, or 1-hexamethyleneimino;R.sup.5 is C.sub.1 -C.sub.3 alkyl, --COC.sub.6 H.sub.5, --CO(C.sub.1 -C.sub.6 alkyl), --C(O)OC.sub.6 H.sub.5, --C(O)O(C.sub.1 -C.sub.6 alkyl), --SO.sub.2 (C.sub.1 -C.sub.6 alkyl), --SO.sub.2 C.sub.6 H.sub.5, or --SO.sub.2 CF.sub.3 ;or a pharmaceutically acceptable salt or solvate thereof.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: March 10, 1998
    Assignee: Eli Lilly and Company
    Inventor: Timothy Alan Grese
  • Patent number: 5723484
    Abstract: Compounds of formula (I): ##STR1## in which: n represents 1 or 2,R.sub.1 represents hydrogen or alkyl, benzyl, acetyl, benzoyl, allyl, pyridinecarbonyl, pyridinemethyl, acylaminoalkyl (optionally substituted), pyridineaminocarbonyl, phthalimidoalkyl, thiochromanyloxyalkyl or (benzodioxanyloxy)alkyl,R.sub.2, R.sub.3 or R.sub.4, which may be identical or different, represent hydrogen or halogen or alkyl, alkoxy, hydroxyl, acetyl, aminocarbonyl, aminomethyl, cyano, nitro, amino, phenyl (which may or may not be substituted), furyl, pyridinyl, thienyl or pyridyl, or alternatively, when they are located on adjacent carbons, R.sub.2 and R.sub.3 form, with the carbon atoms which bear them, a furan or phenyl ring,the isomers thereof and the addition salts thereof with a pharmaceutically acceptable acid, and medicinal products containing the same are useful for the treatment of diseases requiring a ligand to the 5-HT.sub.2C receptors.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: March 3, 1998
    Assignee: Adir et Compagnie
    Inventors: Gilbert Lavielle, Thierry Dubuffet, Mark Millan, Adrian Newman-Tancredi
  • Patent number: 5679694
    Abstract: The invention relates to compounds of formula (I) which have been found to possess anti-tumor activity. Pharmaceutical compositions and methods of treating tumors are also disclosed.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: October 21, 1997
    Assignees: The Wellcome Foundation Ltd., University College Cardiff Consultants Limited
    Inventors: Karl Witold Franzmann, Jeremy Nigel Stables, Patrick Vivian Richard Shannon, Nagaraja Kodanda Ranganatha Rao, Laddawan Chunchatprasert
  • Patent number: 5674432
    Abstract: Described are novel reversible photochromic diaryl-3H-naphtho?2,1-b!pyran compounds having a substituted or unsubstituted, five or six member heterocyclic ring fused to the g, i, or l side of the naphthopyran. The heterocyclic ring contains an oxygen or nitrogen atom and is attached to the number 5, 6, 7, 8, 9, or 10 carbon atom of the naphtho portion of the naphthopyran. Also described are organic host materials containing such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline)oxazine-type compounds, are also described.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: October 7, 1997
    Assignee: Transitions Optical, Inc.
    Inventors: David B. Knowles, Barry Van Gemert
  • Patent number: 5670492
    Abstract: Provided are DC-89 derivatives represented by the formula: ##STR1## wherein X represents Cl or Br, R represents hydrogen or COR.sup.1, and W represents ##STR2## and pharmaceutically acceptable salts thereof. The compounds of the present invention have excellent anti-tumor activity and are useful as anti-tumor agents.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: September 23, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Nobuyoshi Amishiro, Satoru Nagamura, Hiromitsu Saito, Eiji Kobayashi, Akihiko Okamoto, Katsushige Gomi
  • Patent number: 5629430
    Abstract: Trifluoromethylpyrroloindolecarboxylic acid ester derivatives, and optical isomers and pharmaceutically acceptable salts thereof are provided which are represented by the general formula (1): ##STR1## or the general formula (2): ##STR2## The compounds are antineoplastic agents which are selective to cancer cells, effective also to solid cancer, and less toxic.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: May 13, 1997
    Assignees: Kyorin Pharmaceutical Co., Ltd., Sagami Chemical Research Center
    Inventors: Shiro Terashima, Yasumichi Fukuda, Yasuo Oomori
  • Patent number: 5541339
    Abstract: This invention concerns chemical compounds of general Formula ICPI.sub.1 -R.sub.5 -T-R'.sub.5 -CPI.sub.2 IThe compounds of Formula I are useful as uv light absorbers, antibacterial agents, and are particularly useful as antitumor agents. Representative compounds of Formula I have been shown to possess useful ranges of antitumor activity in standard laboratory animal tests.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: July 30, 1996
    Assignee: The Upjohn Company
    Inventors: Robert C. Kelly, Paul A. Aristoff
  • Patent number: 5523411
    Abstract: The present invention relates to the synthesis of mitomycin and analogs thereof that are useful as anticancer antibiotics. The invention further relates to analogs of mitomycin, which can be prepared according to the methods of synthesis provided. The synthetic method of the invention provides for reacting a derivitized indole with a dialkylvinylsulfonium salt to yield a tricyclic skeleton having the precursors of the fourth ring in one step, followed by an oxidation step or steps to close the fourth ring and prepare mitomycin or a related compound.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: June 4, 1996
    Assignee: Rutgers University
    Inventors: Leslie Jimenez, Zheng Wang
  • Patent number: 5502068
    Abstract: The invention is directed to novel cyclopropylpyrroloindole-oligopeptide compounds which are useful as anticancer agents. The novel cyclopropylpyrroloindole-oligopeptide compounds have the following general structure: ##STR1## wherein, Het.sup.1 and Het.sup.2 are individually selected from the group consisting of pyrrole, imidazole, triazole, thiophene, furan, thiazole, oxazole and pyrazole,R is selected from the group consisting of a valence bond; a C.sub.1 -C.sub.6 alkyl; a C.sub.2 -C.sub.6 alkenyl; a C.sub.2 -C.sub.6 alkynyl; and an ortho, meta or para linked aromatic group,A is selected from the group consisting of a C.sub.1 -C.sub.6 alkyl group; an amidine or derivative thereof; a guanidine; a secondary, tertiary or quaternary ammonium salt; and a sulfonium salt,n is 0 to 3, andm is 0 to 3.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: March 26, 1996
    Assignee: Synphar Laboratories, Inc.
    Inventors: J. William Lown, Yuqiang Wang, Weide Luo
  • Patent number: 5486611
    Abstract: This invention is therapeutically useful tetralins and pharmaceutically acceptable acid addition salts thereof of the formula I: ##STR1## wherein X is --(CH.sub.2).sub.n -- or --C(R.sub.1)(H)--; R is C.sub.1 -C.sub.8 alkyl; and R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8) alkynyl, aryl and benzyl.These compounds are useful to treat central nervous system disorders and are unexpectedly resistant to metabolism by the liver and have superior oral plasma bioavailability.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: January 23, 1996
    Assignee: The Upjohn Company
    Inventors: Chiu-Hong Lin, Susanne R. Haadsma-Svensson, Robert B. McCall, Arthur G. Romero, William H. Darlington, Michael D. Ennis
  • Patent number: 5451344
    Abstract: Described are novel reversible photochromic diaryl-3H-naphtho[2,1-b]pyran compounds having a substituted or unsubstituted, five or six member heterocyclic ring fused to the g, i, or l side of the naphthopyran. The heterocyclic ring contains an oxygen or nitrogen atom and is attached to the number 5, 6, 7, 8, 9, or 10 carbon atom of the naphtho portion of the naphthopyran. Also described are organic host materials containing such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline)oxazine-type compounds, are also described.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: September 19, 1995
    Assignee: Transitions Optical, Inc.
    Inventors: David B. Knowles, Barry Van Gemert
  • Patent number: 5442066
    Abstract: Novel bleach catalysts, a method for bleaching substrates using these catalysts and detergent compositions containing same are reported. The bleaches are of the quaternary oxaziridinium salt type. Substrates such as fabrics may be bleached in an aqueous solution containing the quaternary oxaziridinium salt.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: August 15, 1995
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Stephen A. Madison, Janet L. Coope
  • Patent number: 5332837
    Abstract: This invention concerns 2-acyl-4,5,8,8a-tetrahydro-4-oxycyclopropan[c]pyrrol(3,2-e) indole derivatives of Formula I': ##STR1## the compounds of Formula I' are useful as uv light absorber substances, as chemical intermediates and as prodrugs of known spirocyclopropylpyrroloindole CC-1065 analogs. Representative Formula I' compounds have been shown to possess useful ranges of antitumor activity in standard laboratory animal tests.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: July 26, 1994
    Assignee: The Upjohn Company
    Inventors: Robert C. Kelly, David G. Martin, Paul A. Aristoff
  • Patent number: 5319095
    Abstract: This invention provides a process for preparing kainic acid and provides intermediates in the synthesis thereof.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: June 7, 1994
    Assignee: Eli Lilly and Company
    Inventor: James A. Monn
  • Patent number: 5276053
    Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: January 4, 1994
    Assignee: Warner-Lambert Company
    Inventor: Graham Johnson
  • Patent number: 5274114
    Abstract: This invention relates to the preparation of 3- and/or 4-substituted pyrrolidine catalysts corresponding to formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, X.sub.1, X.sub.2, and Y have the meanings described for formula (I) and to use of such catalysts in the polyisocyanate polyaddition process.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: December 28, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Richard Weider, Uwe Scholz, Andreas Ruckes
  • Patent number: 5258383
    Abstract: DC-89 derivatives represented by the formula: ##STR1## wherein X represents hydrogen or CO.sub.2 CH.sub.3 ; and ##STR2## wherein Z represents Cl or Br; R represents hydrogen, CONR.sup.1 R.sup.2 (in which R.sup.1 and R.sup.2 independently represent hydrogen, a straight-chain or branched alkyl group having 1 to 4 carbon atoms or phenyl) or ##STR3## (in which n represents an integer of 0 to 4; R.sup.3 represents CH.sub.2, ##STR4## oxygen, N--CH.sub.3, or N--CH.sub.2 CONR.sup.1 R.sup.2 in which R.sup.1 and R.sup.2 have the same significances as defined above); and W represents hydrogen or ##STR5## (in which W.sup.1 and W.sup.2 independently represent hydrogen or OR.sup.2 in which R.sup.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: November 2, 1993
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Satoru Nagamura, Hiromitsu Saito, Eiji Kobayashi, Katsushige Gomi
  • Patent number: 5229410
    Abstract: The present invention provides 4-amino-6-substituted-hexahydrobenz[cd]indoles which are useful in treating disease states which can be benefited by an alteration of 5-HT.sub.1A receptors.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: July 20, 1993
    Assignee: Eli Lilly and Company
    Inventors: Michael E. Flaugh, Michael J. Martinelli, John M. Schaus
  • Patent number: 5229409
    Abstract: The present invention involves certain 4-amino-6-substituted-tetrahydrobenz[cd]indoles and their use in treating disorders which can be benefited by modifying 5-HT A receptor function.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: July 20, 1993
    Assignee: Eli Lilly and Company
    Inventors: Michael E. Flaugh, Michael J. Martinelli, John M. Schaus
  • Patent number: 5221681
    Abstract: The present invention relates to new substituted benzoxazepines and benzothiazepines of the general formula I ##STR1## in which X, R.sup.1, R.sup.2 and R.sup.3 have the meaning given in the description, processes for their preparation and their use in medicaments having vaso- and muscle-relaxing properties, in particular as circulatory agents.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: June 22, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Kabbe, Helmut Heitzer, Andreas Knorr, Claudia Hirth-Dietrich
  • Patent number: 5187186
    Abstract: DC-88A derivatives represented by the general formula: ##STR1## wherein X represents hydrogen or CO.sub.2 R.sup.1 (in which R.sup.1 represents hydrogen, a straight-chain or branched alkyl having 1 to 4 carbon atoms, allyl, or benzyl); and ##STR2## have an excellent anti-tumor activity and are useful as anti-tumor agents.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: February 16, 1993
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yutaka Kanda, Youichi Uosaki, Hiromitsu Saito, Hiroshi Sano, Eiji Kobayashi, Makoto Morimoto, Satoru Nagamura
  • Patent number: 5180736
    Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: January 19, 1993
    Assignee: Warner-Lambert Company
    Inventor: Graham Johnson
  • Patent number: 5180733
    Abstract: Compounds of the formula: ##STR1## or a pharmaceutically acceptable salt thereof, wherein M is 0, 1 or 2 and n is 0 or 1;R.sup.1 is hydrogen or lower alkyl;R.sup.2 is C.sub.1 -C.sub.6 -alkyl substituted with a heterocyclic group or C.sub.7 -C.sub.16 -arylalkyl, wherein the aryl group is unsubstituted or substituted with from one to three non-hydrogen members independently selected from the group consisting of halogen, C.sub.1 -C.sub.6 -alkyl, halo-C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, hydroxy, amino and C.sub.1 -C.sub.6 -alkylamino;R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkyl, halogen, and halo-C.sub.1 -C.sub.6 -alkyl, or any two of R.sup.3, R.sup.4, R.sup.5 and R.sup.6 taken together form a methylenedioxy group; andR.sup.7 is hydrogen or C.sub.1 -C.sub.6 -alkyl.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: January 19, 1993
    Assignee: Abbott Laboratories
    Inventors: Fatima Z. Basha, John F. DeBernardis, Robert J. Altenbach
  • Patent number: 5126363
    Abstract: Indole derivatives of formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be hydrogen or lower alkyl optionally substituted by halogen; A.sup.1 represents a straight or branched alkylene chain containing from 2 to 4 carbon atoms; R.sup.5 is hydrogen or a straight or branched alkyl group; A.sup.2 is a straight or branched, saturated or unsaturated hydrocarbon chain containing from 2 to 6 carbon atoms; and R.sup.6 is selected from a group consisting of various structures, have been found to exhibit central nervous system activities.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: June 30, 1992
    Assignee: Novo Nordisk A/S
    Inventors: Lone Jeppesen, Peter H. Andersen, Louis B. Hansen, Peter Faarup, John B. Hansen
  • Patent number: 5117006
    Abstract: A DC-88A derivative represented by general formula: ##STR1## wherein ##STR2## represents ##STR3## has an excellent antitumor activity and is useful as an anti-tumor agent.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: May 26, 1992
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hiromitsu Saito, Masaji Kasai, Makoto Morimoto, Eiji Kobayashi, Yoichi Uosaki, Yutaka Kanda, Hiroshi Sano
  • Patent number: 5102905
    Abstract: The invention concerns heterocyclic nitromethane derivatives of the formula 1 as defined hereinafter (and their non-toxic salts) wherein the heterocyclic moiety Q is thienyl, benzothienyl or dibenzothienyl and may bear a wide variety of optional substituents, together with pharmaceutical compositions containing them. The nitromethane derivatives are inhibitors of the enzyme aldose reductase and are of value in the treatment of certain complications of diabetes and galactosemia.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: April 7, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Steven P. Brown, Anthony L. Cooper, Jethro L. Longridge, Jeffrey Morris, John Preston
  • Patent number: 5101038
    Abstract: A novel fermentation product, DC113, represented by the formula ##STR1## which has antimicrobial and antitumor activities.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: March 31, 1992
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hirofumi Nakano, Isami Takahashi, Isao Kawamoto, Toru Yasuzawa, Keiichi Takahashi, Eiji Kobayashi
  • Patent number: 5071853
    Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: December 10, 1991
    Inventors: Christopher F. Bigge, Sheryl J. Hays, Graham Johnson, Perry M. Novak, Daniel F. Ortwine
  • Patent number: 5070092
    Abstract: DC-88A derivatives represented by the general formula: ##STR1## wherein X represents hydrogen or CO.sub.2 R.sup.1 (in which R.sup.1 represents hydrogen, a straight-chain or branched alkyl having 1 to 4 carbon atoms, allyl, or benzyl); and ##STR2## have an excellent anti-tumor activity and are useful as anti-tumor agents.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: December 3, 1991
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yutaka Kanda, Youichi Uosaki, Hiromitsu Saito, Hiroshi Sano, Eiji Kobayashi, Makoto Morimoto, Satoru Nagamura
  • Patent number: 5064831
    Abstract: Naphthothiophenimines of formula I ##STR1## wherein R.sup.1 is, inter alia, alkyl, cycloaklyl, alkenyl, phenalkyl or aminoalkyl.Formula I compounds are useful in treating brain ischemia and resulting disorders.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: November 12, 1991
    Assignee: Bristol-Myers Squibb Co.
    Inventor: Katherine S. Takaki
  • Patent number: 4999369
    Abstract: The present invention relates to compounds of formula (I)ArCH.sub.2 R.sup.1 (I)or a monomethyl or monoethyl ether thereof (the compound of formula (I) including these ethers may contain no more than 29 carbon atoms in total); ethers, esters thereof; acid addition salts thereof; wherein Ar is a fused tetracyclic aromatic ring system comprised of 5-membered and 6-membered rings and contains at least one heteroatom and 3 aromatic rings and a total of no more than 18 ring atoms, or a substituted derivative thereof; the heteroatom is preferably oxygen, sulfur or nitrogen; when it is nitrogen this is substituted by hydrogen, methyl or ethyl;R.sup.1 contains not more than eight carbon atoms and is a group ##STR1## wherein m is 0 or 1; R.sup.5 is hydrogen;R.sup.6 and R.sup.7 are the same or different and each is hydrogen or C.sub.1-5 alkyl optionally substituted by hydroxy;R.sup.8 and R.sup.9 are the same or different and each is hydrogen or C.sub.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: March 12, 1991
    Assignee: Burroughs Wellcome Co.
    Inventor: Kenneth W. Bair
  • Patent number: 4996223
    Abstract: New echiboline derivatives with opioid properties which are 6-hydroxy-9-methyl-echiboline derivatives having, in the 10-position, a hydrocarbon substituent of up to 4 carbon atoms--preferably a group R.CH.sub.2 -- (wherein R represents a hydrogen atom or a hydrocarbon group of up to 3 carbons) and especially a methyl, cyclopropyl-methyl or allyl group.These are made by dealkylating corresponding 6-alkoxy-9-methyl-10-substituted echibolines, thereby converting the 6-alkoxy group to a 6-hydroxy group, especially using boron tribromide as dealkylating reagent.Specific examples are 6-hydroxy-9,10-dimethyl-echiboline, 6-hydroxy-9-methyl-10-allyl-echiboline and 6-hydroxy-9-methyl-10-cyclopropylmethyl-echiboline.The compounds may be in free base or salt form, and be incorporated as active ingredient into pharmaceutical compositions.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: February 26, 1991
    Assignee: The Victoria University of Manchester
    Inventors: John M. H. Rees, Brian Robinson, Brian Cox
  • Patent number: 4978757
    Abstract: 1,2,8,8a-Tetrahydrocyclopropa[3]pyrrolo(3,2-e)indol-4(5H)-ones, and related compounds of formulas I and intermediate therefor II ##STR1## wherein R.sub.2, R.sub.2 ', R.sub.3, R.sub.5, R.sub.50 and X are as defined in the specification, e.g., (7bR,8aS)-1,2,8,8a -tetrahydro-7-methyl-2-[[5-(((1H-indol-2-yl)carbonyl)amino)-1H-indol-2-yl] carbonyl]cyclopropa[pyrrolo[3,2-e]indol-4(5H)-one (U-71,184), as purified, and its racemic form (U-68,415), and related compounds, are useful as ultraviolet light absorbers and as antibacterials. The lead compounds are useful as antitumor drug compounds in standard laboratory animal tests.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: December 18, 1990
    Assignee: The Upjohn Company
    Inventors: Robert C. Kelly, Martha A. Warpehoski, Wendell Wierenga
  • Patent number: 4977158
    Abstract: The invention relates to novel tetracyclic compounds with an anti-depressant action, without neuroleptic or sedative side effects, of the general formula I ##STR1## and also functional derivatives hereof, wherein: R.sup.1 represents one or two identical or different substituents denoting H, OH, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy;R.sup.2 represents one or two identical or different substituents having the same meaning as R.sup.1 ;R.sup.3 and R.sup.4 are two substituents which are in the cis configuration and of which one is H and the other is OH;R.sup.5 is H or C.sub.1 -C.sub.4 alkyl;X denotes O or S;n is 0 or 1.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: December 11, 1990
    Assignee: Akzo N.V.
    Inventor: Johannes H. Wieringa
  • Patent number: 4973694
    Abstract: A 6-tertiary amino-2-(Z.dbd.CH--)benzofuran dye is disclosed, where Z represents the atoms providing an electron withdrawing group and a conjugated methine linkage completing a resonant dye chromophore including the 6-tertiary amino group as an electron donor and the electron withdrawing group as an electron acceptor. The dyes are formed by condensing a 6-tertiary amino-2-formylbenzofuran with an electron withdrawing dye nucleus precursor containing an active methyl or methylene site. The dyes exhibit bathocromically shifted absorption peaks.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Chin H. Chen, John L. Fox
  • Patent number: 4923990
    Abstract: The present invention relates to DC-88A and DC-89A1 and their production. These compounds are obtained by fermentation of microorganisms belonging to the genus Streptomyces. These compounds have antibacterial and anti-tumor activities and are useful as medicaments.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: May 8, 1990
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hirofumi Nakano, Isami Takahashi, Michio Ichimura, Isao Kawamoto, Kozo Asasno, Fusao Tomita, Hiroshi Sano, Toru Yasuzawa, Makoto Morimoto, Kazuhisa Fujimoto
  • Patent number: 4912107
    Abstract: The invention concerns new pyrrolocarbazole derivatives of formula ##STR1## processes for their preparation, as well as medicaments containing these for the inhibition of protein kinases, such as protein kinase C, and thus for the prevention and/or treatment of heart and blood vessel diseases, such as thromboses, arterioscleroses, hypertension, of inflammatory processes, allergies, cancers, and certain degenerative damages of the central nervous system as well as for the treatment of viral diseases.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: March 27, 1990
    Assignee: Goedecke Aktiengesellschaft
    Inventors: Jurgen Kleinschroth, Johannes Hartenstein, Christoph Schachtele, Claus Rudolph, David J. Dooley, Gunther Weinheimer
  • Patent number: 4912227
    Abstract: 1,2,8,8a-Tetrahydrocyclopropa[3]pyrrolo(3,2-e)indol-4(5H)-ones, and related compounds of formulas I and intermediate therefor II ##STR1## wherein R.sub.2, R.sub.2 ', R.sub.3, R.sub.5, R.sub.50 and X are as defined in the specification, e.g., (7bR,8aS)-1,2,8,8a-tetrahydro-7-methyl-2-[[5-(((1H-indol-2-yl)carbonyl)ami no)-1H-indol-2-yl]carbonyl]cyclopropa[pyrrolo[3,2-e]indol-4(5H)-one (U-71,184), as purified, and its racemic form (U-68,415), and related compounds, are useful as ultraviolet light absorbers and as antibacterials. The lead compounds are useful as antitumor drug compounds in standard laboratory animal tests.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: March 27, 1990
    Assignee: The Upjohn Company
    Inventors: Robert C. Kelly, Martha A. Warpehoski, Wendell Wierenga
  • Patent number: 4910314
    Abstract: There is provided a fluorescent adduct which is amenable to detection by fluorometric and electrochemical techniques. The adduct is of the formula: ##STR1## wherein X is a radical derived from a primary amine of the formula X--NH.sub.2 and where R.sub.1 --R.sub.6 are selected from various organic or inorganic substituents.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: March 20, 1990
    Assignee: Oread Laboratories, Inc.
    Inventors: Pierre M. R. de Montigny, Larry A. Sternson, Arnold J. Repta, John F. Stabaugh, Takeru Higuchi, deceased, by Martin B. Dickinson, Jr., co-executor, by Kenji W. Higuchi, co-executor
  • Patent number: 4889937
    Abstract: Disclosed are new indole derivatives of the following general formula (I): ##STR1## and a process for producing the derivatives (I) by irradiating a solution of a triazolylnaphthalene derivative of the following general formula (II) in a solvent with light: ##STR2## wherein R' represents a hydrogen atom, a halogen atom, an alkyl group, a nitro group or a ##STR3## groups, n represents a number of 1 to 2, and when n is 2, two R groups may be either the same or different from each other and R.sub.n is the same as R'.sub.n or represents a ##STR4## group ortho-condensed with the naphthalene ring: W and Z each represent a hydrogen atom, a halogen atom, an alkyl group, a carboxyl group or an ester group thereof, n represents a number of 1 or 2, and when n is 2, two W groups and two Z groups may be either the same or different from each other, respectively.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: December 26, 1989
    Assignee: Agency of Industrial Science and Technology
    Inventors: Yoshinobu Nagawa, Koichi Honda, Hiroshi Nakanishi
  • Patent number: 4868199
    Abstract: The present invention relates to novel enolamide type compounds, pharmaceutical compositions, and methods of use thereof, useful in the treatment of diseases in which products of lipoxygenase enzyme activity or the action of leukotrienes contribute to the pathological condition.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: September 19, 1989
    Assignee: Warner-Lambert Company
    Inventors: Mary E. Carethers, Wiaczeslaw A. Cetenko, David T. Connor, Elizabeth A. Johnson, John S. Kiely, Charles F. Schwender, Jagadish C. Sircar, Roderick J. Sorenson, Paul C. Unangst, Robert F. Bruns
  • Patent number: 4861793
    Abstract: Pharmaceutical compounds of the formula ##STR1## wherein R is H or CH.sub.3, R.sub.1 is H or OCH.sub.3, R.sub.2 is a C.sub.1 -C.sub.4 hydrocarbon group and X is an organic group. Also disclosed is a process for the preparation of these compounds. The compounds have dopamine agonist or antagonist activity.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: August 29, 1989
    Assignee: Farmitalia Carlo Erba, S.p.A
    Inventors: Luigi Bernardi, Laura Chiodini, Aldemio Temperilli
  • Patent number: 4841045
    Abstract: A new process for the stereospecific synthesis of alkaloids of the vinblastine and vincristine type including the synthesis of vinblastine and vincristine as well novel alkaloids which are active as anti-tumor agents.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: June 20, 1989
    Assignee: University of Vermont & State Agricultural College
    Inventor: Martin Kuehne
  • Patent number: 4801588
    Abstract: Compounds of the formula I: ##STR1## wherein R.sub.1 =H, CH.sub.3 ; m=0,1; R.sub.2 =R.sub.3 =H or R.sub.2, R.sub.3 =bond, R.sub.4 =C.sub.1 -C.sub.4 hydrocarbon, n=1 or 2 and their pharmaceutically acceptable salts are antihypertensive agents. Their preparation and pharmaceutical compositions containing them are also described.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: January 31, 1989
    Assignee: Farmitalia Carlo Erba S.p.A.
    Inventors: Aldemio Temperilli, Rosanna Eccel, Enzo Brambilla, Patricia Salvati