Patents Examined by Donald G. Daus
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Patent number: 5973160Abstract: Novel methods for the preparation of sidechain-bearing taxanes, comprising the preparation of an oxazoline compound, coupling the oxazoline compound with a taxane having a hydroxyl group directly bonded at C-13 thereof to form an oxazoline sidechain-bearing taxane, and opening the oxazoline ring of the oxazoline sidechain-bearing taxane so formed. Novel compounds prepared by the methods of the present invention are also provided.Type: GrantFiled: February 13, 1996Date of Patent: October 26, 1999Inventors: Michael A. Poss, Jerome L. Moniot, Ivan D. Trifunovich, David J. Kucera, John K. Thottahil, Shu-Hui Chen, Jianmei Wei
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Patent number: 5972953Abstract: The present invention relates to a novel brain cell protective agent having for its active ingredient a morphinan derivative represented with Compound 1 ##STR1## or pharmacologically acceptable acid addition salt thereof. The compounds used in the present invention were found to have excellent defensive effects against brain nerve cell necrosis in both in vitro and in vivo pharmacological evaluations, and can be used as useful preventive and therapeutic agents of ischemic brain disorders, brain nerve cell disorders and dementia.Type: GrantFiled: November 7, 1996Date of Patent: October 26, 1999Assignee: Toray Industries, Ltd.Inventors: Hiroshi Nagase, Yoshifumi Imamura, Takashi Endo, Susumu Matsuda, Yasushi Miyauchi
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Patent number: 5968962Abstract: A compound of the formula (I): ##STR1## or pharmaceutical acceptable salts thereof wherein X is NR.sub.1, S(O).sub.g, or O; R.sub.1 is H, C.sub.1-6 alkyl optionally substituted with one or more OH, CN, or halo, or R.sub.1 is --(CH.sub.2).sub.h -- aryl, --COR.sub.1--1, --COOR.sub.1-2, --CO--(CH.sub.2).sub.h --COR.sub.1--1, C.sub.1-6 alkyl sulfonyl, --SO.sub.2 --(CH.sub.2).sub.h --aryl, or --(CO).sub.i --Het; R.sub.2 is H, C.sub.1-6 alkyl, --(CH.sub.2).sub.h --aryl, or halo; R.sub.3 and R.sub.4 are the same or different and are H or halo; R.sub.5 is H, C.sub.1-12 alkyl optionally substituted with one or more halo, C.sub.3-12 cycloalkyl, C.sub.1-6 alkoxy. The compounds are useful antimicrobial agents.Type: GrantFiled: August 13, 1996Date of Patent: October 19, 1999Assignee: Pharmacia & Upjohn CompanyInventors: Richard C. Thomas, Toni-Jo Poel, Michael R. Barbachyn
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Patent number: 5968943Abstract: Derivatives of camptothecin are disclosed and are represented by the general formula: ##STR1## wherein when R.sub.2 is H, R.sub.1 is a C.sub.2 -C.sub.4 alkyl group, a C.sub.6 -C.sub.15 alkl group, a C.sub.3 -C.sub.8 cycloalkyl group, a C.sub.2 -C.sub.15 alkenyl group or a C.sub.2 -C.sub.15 epoxy group; and when R.sub.2 is a nitro group, R.sub.1 is a C.sub.1 -C.sub.15 alkyl group, a C.sub.2 -C.sub.15 alkenyl group, a C.sub.3 -C.sub.8 cycloalkyl group, or an epoxy group. Processes for mailing these derivatives and for using them in cancer treatment are also disclosed.Type: GrantFiled: February 25, 1998Date of Patent: October 19, 1999Assignee: The Stehlin Foundation for Cancer ResearchInventors: Zhisong Cao, Beppino C. Giovanella
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Patent number: 5969147Abstract: New pesticidal substituted biphenyloxazolines of the formula (I) in whichA, B, X, m and n have the meanings stated in the description, and new intermediates therefor.Type: GrantFiled: November 12, 1998Date of Patent: October 19, 1999Assignees: Bayer Aktiengesellschaft, Yashima Chemical Industry Co., LtdInventors: Reinhard Lantzsch, Albrecht Marhold, Wolfgang Kramer, Christoph Erdelen, Ulrike Wachendorff-Neumann, Andreas Turberg, Norbert Mencke
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Patent number: 5965582Abstract: The N-benzylindole- and benzopyrazole derivatives of the general formula 1 ##STR1## possess anti-asthmatic, anti-allergic, anti-inflammatory and immunomodulating effect and are suitable for the preparation of medicaments.Type: GrantFiled: May 12, 1997Date of Patent: October 12, 1999Assignee: ASTA Medica AktiengesellschaftInventors: Guillaume Lebaut, Fabienne Fouchard, Bernhard Kutscher, Peter Emig, Ilona Fleischhauer, Jurgen Schmidt, Stefan Szelenyi
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Patent number: 5965591Abstract: An isoxazole compound having the following formula: wherein R.sup.1 represents hydrogen, halogen, alkyl, alkoxy, hydroxyl, alkylthio, amino, alkanoyl, alkanoylamino, alkanoyloxy, alkoxycarbonyl, carboxy, (alkylthio)thiocarbonyl, carbamoyl, nitro or cyano; R.sup.2 represents an amino; m is 1; n is 1 to 6; ring A represents a phenyl ring or a naphthyl ring; and X represents oxygen or sulfur. The isoxazole compound has an excellent monoamine oxidase inhibitory activity, and is useful for treating Parkinson's disease, depression and Alzheimer's disease.Type: GrantFiled: February 26, 1997Date of Patent: October 12, 1999Assignee: Sankyo Company, LimitedInventors: Koichi Kojima, Junichi Sakai, Yuichi Aizawa, Naozumi Samata, Masao Kozuka, Kenji Yoshimi, Isao Kaneko, Kazuo Koyama
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Patent number: 5955457Abstract: A compound of the structure ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen or --COCH.sub.2 --S--CH.sub.2 CH.sub.2 --O--CH.sub.2 --(CH.sub.2 OCH.sub.2).sub.n --CH.sub.2 --O--CH.sub.2 CH.sub.2 --OCH.sub.3 ; and n=8-450; with the proviso that R.sup.1 and R.sup.2 are not both hydrogen, which is useful as an immunosuppressive, antiinflammatory, antifungal, antiproliferative, and antitumor agent.Type: GrantFiled: March 23, 1998Date of Patent: September 21, 1999Assignee: American Home Products CorporationInventors: Hyuk-Koo Lee, Tianmin Zhu
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Patent number: 5945535Abstract: The present invention relates to a new process for preparing norbenzomorphan, the central intermediate step in the preparation of pharmaceutically useful benzomorphan derivatives of general formula 1 ##STR1## especially (-)-(1R,5S,2"R)-3'-hydroxy-2-(2-methoxypropyl)-5,9,9-trimethyl-6,7-benzomo rphan or ?(-)-(2R,6S,2'R)-3-(2-methoxypropyl)-6,11,11-trimethyl-1,2,3,4,5,6 -hexahydro-2,6-methano-benzo?.alpha.!oxacin-9-ol! (BIII 277).Type: GrantFiled: May 1, 1998Date of Patent: August 31, 1999Assignee: Boehringer Ingelheim KGInventors: Matthias Grauert, Herbert Merz, Hanfried Baltes
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Patent number: 5945538Abstract: There are provided ammonium oxazole intermediates of formula I and amino oxazolium intermediates of formula II, useful in the manufacture of insecticidal arylpyrrole compounds.Type: GrantFiled: June 27, 1997Date of Patent: August 31, 1999Assignee: American Cyanamid CompanyInventor: Venkataraman Kameswaran
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Patent number: 5942522Abstract: Compounds useful as antihypertensive agents and useful as antiviral agents against DNA-containing viruses, such as herpes group viruses, are disclosed. The compounds are represented by Formula 1.0: ##STR1## and their pharmaceutically acceptable salts and solvates. Pharmaceutical compositions containing compounds represented by Formula 1.0 are disclosed. Methods of treating a viral infection using compounds represented by Formula 1.0 are disclosed. Also disclosed are methods of treating hypertension using compounds of Formula 1.0 wherein R is selected from the group consisting of H, halogen and --C(O)OR.sup.6 ; and R.sup.1 is selected from the group consisting of --OR.sup.14, --O(CH.sub.2).sub.a C(H).sub.3-i Z.sub.i and --O(CH.sub.2).sub.h N(R.sup.15).sub.2.Type: GrantFiled: February 26, 1997Date of Patent: August 24, 1999Assignee: Schering CorporationInventors: Adriano Afonso, Jay Weinstein, Margaret Jevnik Gentles
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Patent number: 5939445Abstract: Novel isoxazolidinedione derivatives of the formula (I) ##STR1## wherein R is an optionally substituted aromatic hydrocarbon, an optionally substituted alicyclic hydrocarbon, an optionally substituted heterocyclic group, an optionally substituted condensed heterocyclic group or a group of the formula ##STR2## R.sub.4 is a hydrogen atom, a lower alkyl or a hydroxy; R.sub.5 is a lower alkyl optionally substituted by hydroxy; and P and Q are each a hydrogen atom or P and Q together form a bond, and pharmaceutically acceptable salts thereof. Said novel isoxazolidinedione derivatives and pharmaceutically acceptable salts thereof have superior hypoglycemic and hypolipidemic actions and are useful for the treatment of diabetes and the complications thereof, as well as therapeutic agents for related diseases such as hyperlipidemia.Type: GrantFiled: January 28, 1998Date of Patent: August 17, 1999Assignee: Japan Tobacco, Inc.Inventor: Hisashi Shinkai
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Patent number: 5939428Abstract: The invention provides a compound of the following formula: ##STR1## wherein R.sup.1 is C.sub.1-6 alkyl; or phenyl;R.sup.2 is hydrogen;an acyl group of the formula --COR.sup.a wherein R.sup.a is C.sub.1-6 alkyl or phenyl; oran acetylalkylcarbonyl group of the formula --CO(CH.sub.2).sub.n COCH.sub.3 wherein n=1-3; andR.sup.3 and R.sup.4 are substituents at different position(s) of the acridine ring (i.e. C-1'-C-8'), and R.sup.3 and R.sup.4 may be the same or different and independently represent:hydrogen;C.sub.1-6 alkyl;C.sub.1-6 alkyloxy;a nitro group;an amino group of the formula --NR.sup.b R.sup.c wherein R.sup.b and R.sup.c may be the same or different and independently represent hydrogen or C.sub.1-6 alkyl;an aminoalkylamino group of the formula --NH(CH.sub.2).sub.n NR.sup.d R.sup.e wherein R.sup.d and R.sup.e may be the same or different and independently represent hydrogen, C.sub.1-6 alkyl, a hydroxyalkyl group of the formula --(CH.sub.2).sub.n OH wherein n=1-3, or C.sub.Type: GrantFiled: May 4, 1998Date of Patent: August 17, 1999Assignee: National Health Research InstitutesInventors: Tsann-Long Su, Ting-Chao Chou, Felicia Y.-H. Wu, Cheng-Wen Wu
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Patent number: 5936095Abstract: Disclosed are compounds of the formula: ##STR1## wherein: T is NH, O, or S;X is hydrogen, hydroxyl, lower alkyl, or an optionally substituted amide;the W ring is an optionally substituted aryl or heteroaryl group; and ##STR2## represents an optionally substituted benzo group or an optionally substituted 5, 6, 7, or 8 membered ring.These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs of agonists, antagonists or inverse agonists for GABAa brain receptors. These compounds are useful in the diagnosis and treatment of anxiety, sleep and seizure disorders, overdose with benzodiazepine drugs and for enhancement of memory.Type: GrantFiled: June 10, 1997Date of Patent: August 10, 1999Assignee: Neurogen CorporationInventors: Robert W. DeSimone, Charles A. Blum
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Patent number: 5935961Abstract: Compounds with fungicidal properties having formula I ##STR1## wherein W is CH.sub.3 --O--A.dbd.C(-)--CO(V)CH.sub.3 ;A is N or CH;V is O or NH;R.sub.4 and R.sub.5 are independently selected from hydrogen and substituted or unsubstituted alkyl and aryl groups and Q is substituted or unsubstituted aryl groups.Type: GrantFiled: March 30, 1998Date of Patent: August 10, 1999Assignee: Rohm and Haas CompanyInventors: Ronald Ross, Steven Howard Shaber
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Patent number: 5932601Abstract: 2,4-Oxazolidinedione derivative represented by the formula: ##STR1## wherein R stands for an optionally substituted hydrocarbon residue or heterocyclic group; Y stands for a group represented by --CO--, --CH(OH)-- or --NR.sup.3 -- (wherein R.sup.3 stands for an optionally substituted alkyl group); m is 0 or 1; n is 0, 1 or 2; A stands for a C.sub.1-7 divalent aliphatic hydrocarbon group; R.sup.1 stands for hydrogen or an alkyl group; ring E stands for a benzene ring having 1 or 2 substituents; L and M respectively stand for hydrogen, or L and M may optionally be combined with each other to form a bond; with a proviso that the partial formula: ##STR2## does not include the formula: ##STR3## wherein R' stands for an alkyl group; or a salt thereof, which has excellent actions of lowering blood sugar and lipid in blood.Type: GrantFiled: October 30, 1995Date of Patent: August 3, 1999Assignee: Takeda Chemical Industries, Ltd.Inventors: Takashi Sohda, Hiroyuki Odaka, Yu Momose, Mitsuru Kawada
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Patent number: 5932727Abstract: The present invention relates to a process for the preparation of dioxazine derivatives of the formula I ##STR1## in which R.sup.1 is hydrogen or (C.sub.1 -C.sub.8)-alkyl, by ring closure of a compound of the formula II ##STR2## in the presence of a ring-closure agent, wherein the ring-closure agent used is an N-hetarene N-oxide. The compounds of the formula I are used for producing valuable dyes and pigments.Type: GrantFiled: October 16, 1997Date of Patent: August 3, 1999Assignee: Clariant GmbHInventors: Gert Nagl, Wolfgang Bauer, Manfred Urban, Dieter Schnaitmann
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Patent number: 5932588Abstract: Camptothecin compounds having a --CH.sub.2 --L group are effective anti-tumor compounds. These compounds inhibit the enzyme topoisomerase I and DNA of associated topoisomerase I-DNA complexes.Type: GrantFiled: October 8, 1997Date of Patent: August 3, 1999Assignee: Research Triangle InstituteInventors: Monroe E. Wall, Mansukh C. Wani
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Patent number: 5925659Abstract: A compound represented by formula I: ##STR1## is disclosed. The compounds are active primarily against gram negative organisms. Pharmaceutical compositions and methods of treatment are also disclosed.Type: GrantFiled: April 25, 1997Date of Patent: July 20, 1999Assignee: Merck & Co., Inc.Inventors: Arthur A. Patchett, Ravi Nargund, Meng-Hsin Chen, H. Russell Onishi
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Patent number: 5925773Abstract: There are provided ammonium oxazole intermediates of formula I and amino oxazolium intermediates of formula II, useful in the manufacture of insecticidal arylpyrrole compounds.Type: GrantFiled: June 27, 1997Date of Patent: July 20, 1999Assignee: American Cyanamid CompanyInventor: Venkataraman Kameswaran