The Carbonyl Is In A -coo- Group Patents (Class 546/318)
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Patent number: 6165236Abstract: A poly(oxyalkylene)pyridyl or piperidyl ester having the formula: ##STR1## or a fuel-soluble salt thereof; wherein A is a nitrogen-containing ring selected from the group consisting of 3-pyridyl, 4-pyridyl, 3-piperidyl and 4-piperidyl; R.sub.1 and R.sub.2 are independently hydrogen or lower alkyl having 1 to about 6 carbon atoms and each R.sub.1 and R.sub.2 is independently selected in each --O--CHR.sub.1 --CHR.sub.2 -- unit; R.sub.3 is hydrogen, alkyl having 1 to about 100 carbon atoms, phenyl, aralkyl having about 7 to about 100 carbon atoms or alkaryl having about 7 to about 100 carbon atoms; x is an integer from 0 to 4; and n is an integer from about 5 to about 100.The poly(oxyalkylene)pyridyl and piperidyl esters of the present invention are useful as fuel additives for the prevention and control of engine deposits.Type: GrantFiled: June 2, 1999Date of Patent: December 26, 2000Assignee: Chevron Chemical Company LLCInventor: Richard E. Cherpeck
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Patent number: 6110970Abstract: This invention relates to nitrogen-containing oxyalkylene diester compositions for treating disease conditions including cancer and other proliferative diseases. The nitrogen-containing oxyalkylene diesters are represented by the formula ##STR1## where the nitrogen-containing group is R.sub.3 and includes particular alkyl, alkenyl, cycloalkyl, aryl, aralkyl, heterocycloalkyl or heteroaryl groups, which have nitrogen-containing substituents, such as amines, amides, or nitrogen heteroatoms.Type: GrantFiled: March 11, 1997Date of Patent: August 29, 2000Assignees: Beacon Laboratories, Inc., Mor Research Applications, Ltd., Bar-Ilan UniversityInventors: Abraham Nudelman, Ada Rephaeli
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Patent number: 6090824Abstract: Compounds of formula I ##STR1## wherein Q.sup.1, Q.sup.2, Q.sup.3, and Q.sup.4 have any of the meanings given in the specification, their N-oxides, and their pharmaceutically acceptable salts are nonpeptide antagonists Substance P and NKA, useful for the treatment of asthma, etc. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.Type: GrantFiled: November 14, 1996Date of Patent: July 18, 2000Assignee: Zeneca LimitedInventors: Peter R. Bernstein, Bruce T. Dembofsky
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Patent number: 6045720Abstract: A compound expressed by the following formula (1) and a liquid crystalline composition with using it are provided: ##STR1## wherein, either one of rings A, B and C denotes ##STR2## remaining two of them denote each independently ##STR3## R denotes an alkyl group or an alkoxy group with 4-16 carbon atoms, R* denotes ##STR4## in which, R.sub.1 denotes CH.sub.3, CF.sub.3, CH.sub.2 F or CHF.sub.2, R.sub.2 denotes an alkyl group with 1-10 carbon atoms and m denotes 2-12.The said compound exhibits a ferroelectric liquid crystalline phase and an antiferroelectric liquid crystalline phase by itself.Type: GrantFiled: December 4, 1998Date of Patent: April 4, 2000Assignee: Chisso CorporationInventors: Ryushi Shundo, Shinichi Saito, Eiji Okabe, Hideo Saito
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Patent number: 6022974Abstract: A process for the production of 2-chloro-5-chloromethylpyridine of the formula: ##STR1## starting from 6-hydroxynicotinic acid of the formula: ##STR2## In this way 6-hydroxynicotinic acid is reacted with an acid chloride to 6-hydroxynicotinoyl chloride of the formula: ##STR3## The latter is then catalytically hydrogenated with hydrogen to 6-hydroxy-5-hydroxymethylpyridine of the formula: ##STR4## The latter is then catalytically hydrogenated with hydrogen to 2-hydroxy-5-hydroxymethylpyridine of the formula: ##STR5## which is then chlorinated to the end product according to formula I.Type: GrantFiled: May 11, 1993Date of Patent: February 8, 2000Assignee: Lonza Ltd.Inventors: Oleg Werbitzky, Philipp Studer
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Patent number: 5919792Abstract: This invention relates to certain novel compounds and derivatives thereof, their synthesis, and their use as vitronectin receptor antagonists. The vitronectin receptor antagonist compounds of the present invention are .alpha.v.beta.3 antagonists, .alpha.v.beta.5 antagonists or dual .alpha.v.beta.3/.alpha.v.beta.5 antagonists useful for inhibiting bone resorption, treating and preventing osteoporosis, and inhibiting restenosis, diabetic retinopathy, macular degeneration, angiogenesis, atherosclerosis, inflammation and tumor growth.Type: GrantFiled: October 28, 1997Date of Patent: July 6, 1999Assignee: Merck & Co., Inc.Inventors: Mark E. Duggan, George D. Hartman, William F. Hoffman, Nathan C. Ihle
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Patent number: 5892050Abstract: There is provided a single vessel process for the preparation of a pyridine dicarboxylate compound of formula I ##STR1## via the sequential condensation of an alkyl vinyl ether with Vilsmeier reagent, oxalacetate and an ammonia source.Type: GrantFiled: January 28, 1998Date of Patent: April 6, 1999Assignee: American Cyanamid CompanyInventor: Robert Francis Doehner, Jr.
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Patent number: 5869676Abstract: The present invention relates to improved, efficient chemical syntheses of 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (3-AP) and 3-amino-4-methylpyridine-2-carboxaldehyde thiosemicarbazone (3-AMP).Type: GrantFiled: May 15, 1997Date of Patent: February 9, 1999Assignee: Vion Pharmaceuticals, Inc.Inventors: ChuanSheng Niu, Jun Li, Xiuyan Li, Terrence W. Doyle, Shu-Hui Chen
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Patent number: 5861419Abstract: The invention encompasses the novel compound of Formula I as well as a method of treating COX-2 mediated diseases comprising administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound of Formula I. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of COX-2 mediated diseases comprising compounds of Formula I.Type: GrantFiled: July 11, 1997Date of Patent: January 19, 1999Assignee: Merck Frosst Canad, Inc.Inventors: Daniel Dube, Richard Friesen, Rejean Fortin, Zhaoyin Wang, Jacques Yves Gauthier
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Patent number: 5747422Abstract: Substituted 2-phenylpyridines I ##STR1## where substituents have the meaning described in the specification and their use as herbicides; for the desiccation/defoliation of plants.Type: GrantFiled: July 3, 1997Date of Patent: May 5, 1998Assignee: BASF AktiengesellschaftInventors: Peter Schafer, Gerhard Hamprecht, Elisabeth Heistracher, Ralf Klintz, Hartmann Konig, Helmut Walter, Karl-Otto Westphalen, Ulf Misslitz
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Patent number: 5739342Abstract: The present invention relates to an improved process for the preparation of nicotinic acids represented by the following structural formula (I): ##STR1## which are prepared by reacting a nicotinic amide compound having the formula: ##STR2## under acidic conditions with a nitrite salt. In the process of the invention have the groups R.sup.1, R.sup.2, and R.sup.3, in the compounds are independently selected from the group consisting of hydrogen, and halogen atoms and R.sup.4 is selected from the group consisting of hydrogen, lower alkyl and aryl. The process provides the nicotinic acid compounds in improved yields.Type: GrantFiled: March 3, 1997Date of Patent: April 14, 1998Assignee: Abbott LaboratoriesInventors: Padam N. Sharma, Marazban H. Vandrevala
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Patent number: 5716971Abstract: Pyridine derivatives of the formula ##STR1## wherein the ring A stands for an optionally further substituted benzene ring; the ring B stands for an optionally substituted pyridine ring; Q stands for hydroxyl group, or OQ.sup.1 or Q.sup.1 wherein Q.sup.1 stands for an optionally substituted aliphatic hydrocarbon group; and n denotes 0 or 1, or their salts, which have potassium.channel opening activity and are useful as therapeutic agents of circulatory diseases such as angina pectoris, hypertension, etc.Type: GrantFiled: August 9, 1996Date of Patent: February 10, 1998Assignee: Takeda Chemical Industries, Ltd.Inventors: Mitsuru Shiraishi, Toshifumi Watanabe
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Patent number: 5708175Abstract: A process for producing 4-trifluoromethylnicotinic acid of the formula (VIII) or its salt: ##STR1## which comprises (i) a first step of reacting a halide of the formula (I):CF.sub.3 COHal (I)wherein Hal is a halogen atom, with a compound of the formula (II):CH.sub.2 .dbd.CHOR.sup.1 (II)wherein R.sup.1 is an alkyl group, in the presence of a base to obtain a 4-alkoxy-1,1,1-trifluoro-3-buten-2-one of the formula (III):CF.sub.3 CO--CH.dbd.CH--OR.sup.1 (III)wherein R.sup.1 is as defined above, and reacting this compound with ammonia to obtain 4-amino-1,1,1-trifluoro-3-buten-2-one of the formula (IV): ##STR2## and (ii) a second step of subjecting the 4-amino-1,1,1-trifluoro-3-buten-2-one obtained in the first step and a compound of the formula (V):ACO.sub.2 R.sup.2 (V)wherein R.sup.2 is an ester-forming residue, and A is (R.sup.3 O)CH.dbd.CH-- or (R.sup.3 O).sub.2 CHCH.sub.2 --, wherein R.sup.Type: GrantFiled: May 16, 1996Date of Patent: January 13, 1998Assignee: Ishihara Sangyo Kaisha Ltd.Inventors: Toru Koyanagi, Tetsuo Yoneda, Fumio Kanamori, Shigehisa Kanbayashi, Toyoshi Tanimura, Noriyuki Horiuchi
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Patent number: 5691366Abstract: A new nitro compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each lower alkyl or lower alkoxy(lower)-alkyl, or ##STR2## is cyclized to form ##STR3## X is --O--, --S-- or --NH--, m is an integer 0 or 1, andR.sup.3 is carbamoyl, lower alkylcarbamoyl, lower alkanoyl, di-lower alkylaminosulfonyl, lower alkylsulfonyl, oxamoyl or a group of the formula: --(Y).sub.n --R.sup.4 wherein Y is --CO--, --SO.sub.2 --, --COCH.sub.2 -- or ##STR4## n is an integer of 0 or 1, and R.sup.4 is heterocyclic group which is optionally substituted with one or more substituents selected from lower alkyl, lower alkoxy, phenyl, carbamoyl, halogen, amino, lower alkylthio, hydroxy, lower alkylsulfonylamino and carbamoylmethyl, and pharmaceutically acceptable salt thereof, which are useful as vasodilators.Type: GrantFiled: October 31, 1995Date of Patent: November 25, 1997Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Masayuki Kato, Shigetaka Nishino, Mitsuko Hamano, Hisashi Takasugi
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Patent number: 5659042Abstract: The present invention provides a method of preparation of ethyl 6-halonicotinate, wherein said halo is chloro or iodo, which comprises reacting the 6-halonicotinic acid with triethyl orthoacetate, to yield the ethyl-6-halonicotinate.Type: GrantFiled: October 25, 1994Date of Patent: August 19, 1997Assignee: AllerganInventors: Samuel J. Gillett, Michael E. Garst, Alan T. Johnson
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Patent number: 5605915Abstract: Compounds of the formula ##STR1## wherein the symbols have the meaning defined in the specification.Type: GrantFiled: May 31, 1996Date of Patent: February 25, 1997Assignee: AllerganInventors: Vidyasagar Vuligonda, Richard L. Beard, Alan T. Johnson, Min Teng, Tae K. Song, Roshantha A. Chandraratna
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Patent number: 5604227Abstract: The present invention relates to pyridazino[4,5-b]quinolines, and pharmaceutically useful salts thereof, which are excitatory amino acid antagonists and which are useful when such antagonism is desired such as in the treatment of neurological disorders. The invention further provides pharmaceutical compositions containing pyridazino[4,5-b]quinolines as active ingredient, and methods for the treatment of neurological disorders.Type: GrantFiled: April 13, 1995Date of Patent: February 18, 1997Assignee: Imperial Chemical Industries PLCInventors: Thomas M. Bare, Richard B. Sparks
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Patent number: 5599814Abstract: The present invention relates to pyridazino[4,5-b]quinolines, and pharmaceutically useful salts thereof, which are excitatory amino acid antagonists and which are useful when such antagonism is desired such as in the treatment of neurological disorders. The invention further provides pharmaceutical compositions containing pyridazino[4,5-b]quinolines as active ingredient, and methods for the treatment of neurological disorders.Type: GrantFiled: April 24, 1995Date of Patent: February 4, 1997Assignee: Imperial Chemical Industries, PLCInventors: Thomas M. Bare, Richard B. Sparks
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Patent number: 5591756Abstract: This invention relates to a compound of the formula: ##STR1## or a pharmaceutically acceptable salt thereof wherein X is oxygen, sulfur, --CH.dbd.CH--, or --CH.dbd.N--;wherein R.sup.1 is --CO.sub.2 R.sup.2 or tetrazole;wherein R.sup.2 is hydrogen, alkyl of 1 to 6 carbons or a pharmaceutically acceptable cation;wherein R is an alkyl of from 1 to 20 carbons, --(CH.sub.2).sub.p CF.sub.3 or --(CH.sub.2).sub.q R.sup.3 wherein R.sup.3 is alkoxy, phenoxy or alkoxy substituted phenoxy wherein the alkoxy group has from 1 to 8 carbons;wherein p and q are integers from 0 to 20;wherein n is 0 or 1; andwherein m is 0, 1, 2, or 3.Type: GrantFiled: May 19, 1995Date of Patent: January 7, 1997Assignee: G. D. Searle & Co.Inventors: Stevan W. Djuric, Richard A. Haack, Julie M. Miyashiro
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Leukotriene-B.sub.4 antagonists, process for their production and their use as pharmaceutical agents
Patent number: 5559134Abstract: The invention relates to leukotriene-B.sub.4 antagonists of formula I ##STR1## in which n represents a whole number from 2 to 5,X represents a direct bond, 1 to 6 methylene units, an ortho-, meta- or para-substituted phenyl ring or a meta- or para-substituted pyridine ring,Y represents a bond to a hydrogen atom and simultaneously to a hydroxy group, a double-bound oxygen atom or --O--CH.sub.2 --CH.sub.2 --O--,R.sub.1 and R.sub.2 represent the radical OH, --O--(C.sub.1 -C.sub.4)--alkyl, O--(C.sub.3 -C.sub.6)--cycloalkyl, --O--(C.sub.6 -C.sub.10)--aryl, --O--(C.sub.7 -C.sub.12)--aralkyl, O--(CH.sub.2)--CO-- (C.sub.6 -C.sub.10)--aryl or the radical NHR.sub.3 with R.sub.3 meaning hydrogen, (C.sub.1 -C.sub.4)--alkyl, (C.sub.3 -C.sub.6)--cycloalkyl or (C.sub.7 -C.sub.12)--aralkyl as well as their salts with physiologically compatible bases and their cyclodextrin clathrates.Type: GrantFiled: March 23, 1995Date of Patent: September 24, 1996Assignee: Schering AktiengesellschaftInventors: Bernd Buchmann, Werner Skuballa, Josef Heindl, Wolfgang Fr ohlich, Roland Ekerdt, Claudia Giesen -
Patent number: 5534635Abstract: It has been found that pyridine-2-carboxamides of the formula ##STR1## wherein R is amino or a residue convertible into amino, and pharmaceutically usable acid addition salts of that carboxamide in which R is amino can be prepared in a simple manner and in good yield by reacting 2,5-dichloropyridine in the presence of a palladium-phosphine catalyst with an alkyne of the formulaR.sup.1 --C.tbd.CH IIIwherein R.sup.1 is hydrogen, lower-alkyl, trimethylsilyl or the group --(R.sup.2)(R.sup.3)--COH and R.sup.2 and R.sup.3 each independently are hydrogen or lower-alkyl or together are cyclopentyl or cyclohexyl,oxidizing the resulting alkyne to give 5-chloropyridine-2-carboxylic acid and reacting this acid or a reactive functional derivative thereof with an amino compound of the formulaor with carbon monoxide and an amino compound of formula VI or with carbon monoxide and a lower alkanol which is optionally mixed with water and reacting the resulting acid or the resulting ester with an amino compound of formula VI.Type: GrantFiled: September 12, 1994Date of Patent: July 9, 1996Assignee: Hoffmann-La Roche Inc.Inventors: Michelangelo Scalone, Peter Vogt
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Patent number: 5527921Abstract: Peroxycarboxylic ester photoinitiators derived from aromatic nitrogen containing heterocyclic carboxylic acids are described. The heterocyclic aromatic ring may contain additional nitrogen atoms, be fused with another aromatic ring system, be substituted with an additional peroxycarboxylic ester group and/or be substituted with an electron group having a Hammett sigma value greater than 0.1. The peroxycarboxylic ester photoinitiators have been found to be useful in photopolymerizable compositions and photosensitive elements.Type: GrantFiled: March 21, 1995Date of Patent: June 18, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Jeanne E. Haubrich
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Patent number: 5520828Abstract: Novel fabric conditioners based on pyridine carboxylic acid esters or amides are described. The compounds are effective fabric conditioners and are biodegradable. Compositions including the compounds and a method of using the compositions are also described.Type: GrantFiled: January 30, 1995Date of Patent: May 28, 1996Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Shang-Ren Wu, Eddie N. Gutierrez
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Patent number: 5508293Abstract: Disclosed are pyridinecarboximidamides having a vasodilating effect (hypotensive activity or antianginal activity), and acid adduct salts thereof. ##STR1## wherein when R.sup.1 represents an alkyl, hydroxyalkyl, carboxyl, amino, acylamino, alkylamino, dialkylamino, aralkylamino, alkylsulfonamide, bisalkylsulfonylamino or hydroxyl group, R.sup.2 represents a hydrogen atom and R.sup.3 represents a nitroxyl, 2-chlorophenyl or phenyl group; andwhen R.sup.1 represents a hydrogen atom, R.sup.2 represents an alkyl, hydroxyalkyl, carboxyl, amino, acylamino, alkylamino, dialkylamino, aralkylamino, alkylsulfonamide, bisalkylsulfonylamino or hydroxyl group and R.sup.3 represents a nitroxyl, 2-chlorophenyl or phenyl group.There is also disclosed the use of the compounds represented by the formula (I) for antihypertensive or antianginal purpose.Type: GrantFiled: September 27, 1994Date of Patent: April 16, 1996Assignee: Kirin Beer Kabushiki KaishaInventors: Hideki Okawara, Tatsuo Nakajima, Nobuyuki Ogawa, Tomoko Kashiwabara, Soichiro Kaneta
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Patent number: 5502194Abstract: A process for the preparation of a 2-halogeno-pyridine of the formula ##STR1## in which X represents halogen andY represents halogen, nitro, formyl, cyano, carboxyl, carbamoyl, alkyl, halogenoalkyl, alkoxyalkyl, dialkoxyalkyl, alkoxycarbonyl, alkylaminocarbonyl or dialkylaminocarbonyl,which comprises in a first stage reacting a pyridine 1-oxide of the formula ##STR2## with an organic nitrogen base A and an electrophilic compound, optionally in the presence of a diluent, to produce a compound of the formula ##STR3## in which A represents the radical of an organic nitrogen base, andZ.sup.- represents an anion formed from an electrophilic compound,optionally isolating and optionally purifying the compound of the formula (III).Type: GrantFiled: March 31, 1994Date of Patent: March 26, 1996Assignee: Bayer AktiengesellschaftInventors: Eric Rivadeneira, Klaus Jelich
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Patent number: 5495023Abstract: A new nitro compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each lower alkyl or lower alkoxy(lower)alkyl, or ##STR2## is cyclized to form ##STR3## X is --O--, --S-- or --NH--, m is an integer 0 or 1, andR.sup.3 is carbamoyl, lower alkylcarbamoyl, lower alkanoyl, di-lower alkylaminosulfonyl, lower alkylsulfonyl, oxamoyl or a group of the formula: --(Y).sub.n --R.sup.4whereinY is --CO--, --SO.sub.2 --, --COCH.sub.2 -- or ##STR4## n is an integer of 0 or 1, and R.sup.4 is heterocyclic group which is optionally substituted with one or more substituents selected from lower alkyl, lower alkoxy, phenyl, carbamoyl, halogen, amino, lower alkylthio, hydroxy, lower alkylsulfonylamino and carbamoylmethyl, and pharmaceutically acceptable salt thereof, which are useful as vasodilators.Type: GrantFiled: May 3, 1994Date of Patent: February 27, 1996Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Masayuki Kato, Shigetaka Nishino, Mitsuko Hamano, Hisashi Takasugi
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Patent number: 5472687Abstract: Topical pyridine N-oxides, including 3-carboxypyridine N-oxide, niacinamide N-oxide, and .alpha.-(4-pyridyl-1-oxide)-N-t-butylnitrone, are disclosed. The topical compositions have utility in a topical pharmaceutical formulation for the cosmetic treatment of hair loss and the cosmetic stimulation of hair growth.Type: GrantFiled: February 7, 1994Date of Patent: December 5, 1995Inventor: Peter H. Proctor
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Patent number: 5446057Abstract: Substituted tetrahydropyridines and piperidinecarboxylic acids and derivatives thereof are described, as well as methods for the preparation and pharmaceutical composition of same, which muscarinic antagonists are useful as agents for inhibiting gastric acid release, for treating bradycardia, bronchoconstriction, urinary incontinence, atonic conditions of the gut and bladder, Parkinson's disease, dystonias, and Alzheimer's disease.Type: GrantFiled: September 24, 1993Date of Patent: August 29, 1995Assignee: Warner-Lambert CompanyInventors: Corinne E. Augelli-Szafran, Juan C. Jaen, Roy Schwarz, Anthony J. Thomas
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Patent number: 5439925Abstract: Di(aromatic) compounds corresponding to the following formula: ##STR1## in which: Ar represents either ##STR2## n=1 or 2 or: ##STR3## X represents a divalent radical, Z represents O, S or a divalent radical, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent a hydrogen atom or various organic radicals, and the salts of the compounds of formula (I) when R.sub.1 is a carboxylic acid function. Use is in human and veterinary medicine and in cosmetics.Type: GrantFiled: December 16, 1993Date of Patent: August 8, 1995Assignee: Centre International de Recherches Dermatologiques Galderma (Cird Galderma)Inventors: Jean-Michel Bernardon, Willliam R. Pilgrim
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Patent number: 5418245Abstract: Methods of inhibiting cell proliferation in a patient suffering from such disorder comprising the use of a styryl-substituted heteroaryl compound wherein the heteroaryl group is a monocyclic ring with 1 or 2 heteroatoms, or a bicyclic ring with 1 to about 4 heteroatoms, said compound optionally substituted or polysubstituted, with the proviso that when said ring is polysubstituted, the substituents do not have a common point of attachment to said ring, and those compounds wherein no substituent on the heteroaryl group is a carboxy group or an ester group, and pharmaceutical compositions comprising such compounds.Type: GrantFiled: March 17, 1994Date of Patent: May 23, 1995Assignee: Rhone-Poulenc Rorer International (Holdings) Inc.Inventors: Alfred P. Spada, Paul E. Persons
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Patent number: 5401868Abstract: The present invention relates to hitherto unknown intermediate of formula, in which R.sub.1 stands for hydrogen or a straight or branched aliphatic C.sub.1 -C.sub.20 carbon chain or an aryl or aralkyl group, aryl and "ar" meaning an aromatic or heterocyclic, 5- or 6-membered ring substituent containing 1 or 2 hetero atoms selected among O, S and N, R.sup.1 optionally being further substituted, and its chain being interrupted by hetero atoms like oxygen, or by carbonyl group(s); and R.sup.3 stands for hydrogen or C.sub.1 -C.sub.3 alkyl. The present intermediates can be used in a one step method for producing prodrugs of formula, where D-H =drug itself.Type: GrantFiled: February 26, 1992Date of Patent: March 28, 1995Assignee: Leo Pharmaceutical Products Ltd. A/S (Lovens Kemiske Fabrik Productionsaktieselskab)Inventor: Frantz J. Lund
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Patent number: 5393730Abstract: The invention relates to nicotinic acid hydrazone derivatives of formula I: ##STR1## in which the various symbols are as defined in the description, and their use as herbicides or as intermediates in the synthesis of herbicides.Type: GrantFiled: January 12, 1994Date of Patent: February 28, 1995Assignee: Rhone-Poulenc Agriculture Ltd.Inventor: Philip H. G. Smith
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Patent number: 5387747Abstract: The present invention relates to the derivatives of the formula ##STR1## and their tautomeric forms, as well as their addition salts, and to their use in therapeutics, especially for the treatment and prevention of cardiovascular diseases and in particular for the treatment of hypertension, cardiac insufficiency and diseases of the arterial wall, especially atherosclerosis.Type: GrantFiled: April 16, 1993Date of Patent: February 7, 1995Assignee: Laboratoires UpsaInventors: Nicole Bru-Magniez, Timur Gungor, Jean-Marie Teulon
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Patent number: 5385920Abstract: Compounds of formula (I): ##STR1## in which: R.sub.1 and R.sub.2, which are identical or different, represent a higher alkyl or higher alkenyl radical,R.sub.3 represents a pyridyl or pyrazinyl radical,their isomers and their addition salts with a pharmaceutically acceptable acid and medicaments for the reduction of plasma lipids containing the same.Type: GrantFiled: June 9, 1993Date of Patent: January 31, 1995Assignee: Adir et CompagnieInventors: Alex Cordi, Jean-Michel Lacoste, Jacques Duhault, Joseph Espinal, Michelle Boulanger
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Patent number: 5374726Abstract: A process is provided for the preparation of 10-deazaaminopterins and 5,10- and 8,10-dideazaaminopterins starting from the corresponding homoterephthalic acid diester coupling the corresponding dicarboxylic acid diester having the formula: ##STR1## with the corresponding diaminopterin 6-methylene halide having the formula: ##STR2## thereby forming a pteroic acid diester having the formula: ##STR3## hydrolysing the two ester groups to form the corresponding carboxylic acid groups, and then monodecarboxylating the diacid, thereby removing the carboxylic acid group attached to the carbon alpha to the A group and forming a pteroic acid.Type: GrantFiled: March 9, 1993Date of Patent: December 20, 1994Inventors: Joseph I. DeGraw, William T. Colwell, James R. Piper
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Patent number: 5336681Abstract: A derivative of general formula: ##STR1## wherein Y is --SO.sub.2 -- or ##STR2## (i) R.sup.1 and R.sup.2, which may the same or different, each represent, (1) --H, (2) C1-16 alkyl or (3) the formula: --X--A-- (R.sup.4)n wherein X is single-bond, --SO.sub.2 --, C1-4 alkylene, C1-4 alkylene substituted by --COOH or ##STR3## --A-- is a pyridyl or pyrrolyl ring, n is 1.about.5, R.sup.4 is 1 --H or C1-8 alkyl, 2 C1-14 alkoxy, 3 C1-6 alkylthio, 4 --OH, halogen, --NO.sub.2 or trihalomethyl, 5 the formula: --NR.sup.41 R.sup.42 wherein R.sup.41 and R.sup.42 each represents halogen or C1-4 alkyl, 6 tetrazole, 7 --SO.sub.3 H or --CH.sub.2 OH, 8 the formula: --SO.sub.2 NR.sup.41 R.sup.42 9 the formula: --Z.sup.41 --COOR.sup.43 wherein Z.sup.41 is single-bond, C1-4 alkylene or C2-4 alkenylene, R.sup.Type: GrantFiled: October 13, 1992Date of Patent: August 9, 1994Assignee: Ono Pharmaceutical Co., Ltd.Inventors: Katsuhiro Imaki, Yoshinobu Arai, Tadao Okegawa
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Patent number: 5324840Abstract: Compounds that provide non-teratogenic effects and lack irritation to the skin are shown in the formula below where the partially drawn ring signifies an aromatic ring which may be carbocyclic or heteroaromatic, 6-membered or 5-membered, and may be condensed with another ring. R.sub.1 is lower alkyl, Cl, Br, or I, R.sub.2 is H, lower alkyl, Cl, Br, or I, and R.sub.3 is lower alkyl, Cl, Br, I, or is an ether, thioether, ester, thioester, amine or substituted amine group.Type: GrantFiled: June 11, 1992Date of Patent: June 28, 1994Assignee: Allergan, Inc.Inventor: Roshantha A. S. Chandraratna
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Patent number: 5318994Abstract: Compounds of the formula: ##STR1## in which: A represents ##STR2## R represents linear or branched lower alkyl, R.sub.1 represents hydrogen or linear or branched lower alkyl, andR.sub.2 represents aryl or lower arylalkyl or aryl or lower arylalkyl substituted by lower alkyl, lower alkoxy, trifluoromethyl, or halogen, aryl means phenyl or naphthyl, as well as optical isomers, epimers and diastereoisomers and addition salts thereof with a pharmaceutically-acceptable acid, lower alkyl and lower alkoxy having 1 to 6 carbon atoms inclusive, andmedicaments containing the same which are useful for the treatment of disorders of the melatoninergic system.Type: GrantFiled: November 3, 1992Date of Patent: June 7, 1994Assignee: Adir et CompagnieInventors: Jean Andrieux, Raymond Houssin, Said Yous, Beatrice Guardiola, Daniel Lesieur
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Patent number: 5296601Abstract: A process for producing a carboxylic acid ester, which comprises reacting an organic chloride having at least one chlorine atom on its ring of a substituted or unsubstituted, aromatic or heterocyclic hydrocarbon with carbon monoxide and an amine or an alcohol in the presence of a base by using as catalysts a palladium compound and a phosphine compound represented by the general formula (V):(R).sub.2 P--X--P(R).sub.2 (V)wherein R is an alkyl group or a substituted or unsubstituted phenyl group, and X is an alkylene group having 1 to 6 carbon atoms, ##STR1## or a binaphthyl group.Type: GrantFiled: May 27, 1992Date of Patent: March 22, 1994Assignee: Nihon Nohyaku Co., Ltd.Inventors: Keiji Suto, Masaaki Kudo, Moriharu Yamamoto
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Patent number: 5262387Abstract: Pyridine derivatives of the formulae ##STR1## wherein W, X, Y and Z are each C--R.sup.4, N or N.fwdarw.O, with the proviso that the ring contains only one heteroatom, and the substituents R.sup.1, R.sup.2 and R.sup.3 have the following meanings:R.sup.1 is alkoxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted alkenyl, or substituted or unsubstituted alkynyl,R.sup.2 is hydrogen,R.sup.3 is formyl, 4,5-dihydrooxazol-2-yl or --CO--A--R.sup.5 or --CO--NR.sup.6.sup.R.sup.7, whereR.sup.Type: GrantFiled: November 20, 1991Date of Patent: November 16, 1993Assignee: BASF AktiengesellschaftInventors: Gerhard Hamprecht, Norbert Goetz, Bruno Wuerzer, Karl-Otto Westphalen
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Patent number: 5260323Abstract: 2,4- and 2,5-substituted pyridine-N-oxides are provided which are effective as fibrosuppressives and immunosuppressives. Said compounds are also suitable for the treatment of disorders of the metabolism of collagen and collagen-like substances or the biosynthesis of Clq.Type: GrantFiled: November 19, 1992Date of Patent: November 9, 1993Assignee: Hoechst AktiengesellschaftInventors: Ekkehard Baader, Martin Bickel, Volkmar Gunzler-Pukall
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Patent number: 5256678Abstract: This invention relates to n-pentadecyl nicotinate N-oxide, a hair restorer composition comprising said compound as the active ingredient and a method of hair restoring utilizing said compound.Type: GrantFiled: May 22, 1992Date of Patent: October 26, 1993Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventor: Osamu Nakaguchi
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Patent number: 5250542Abstract: 3,4,4-trisubstitutedpiperidinyl-N-alkylcarboxylates and intermediates for their preparation are provided. These piperidine-N-alkylcarboxylates are useful as peripheral opioid antagonists.Type: GrantFiled: July 17, 1992Date of Patent: October 5, 1993Assignee: Eli Lilly and CompanyInventors: Buddy E. Cantrell, Dennis M. Zimmerman
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Patent number: 5245039Abstract: A process for the optical resolution of racemic 1,4-dihydropyridines, containing isothioureido groups. Salification of racemic isothioureas with optically active acids produces diasteroisomeric mixtures of isothiouronium salts, that, using conventional techniques, are separated in the individual components to give optically pure isothioureides of 1,4-dihydropyridines and salts thereof with conventional acids. Said optically pure 1,4-dihydropyridines can then be subjected to desulphuration and to different transformations to give to other enantiomerically pure and therapeutically useful 1,4-dihydropyridines.Type: GrantFiled: August 14, 1991Date of Patent: September 14, 1993Assignee: Boehringer Mannheim ItaliaInventors: Carmelo A. Gandolfi, Marco Frigerio, Carlo Riva, Andrea Zaliani, Giorgio Long, Roberto D. Domenico
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Patent number: 5238948Abstract: The invention relates to pyridine-2,4- and -2,5-dicarboxylic acid derivatives of the formula I ##STR1## in which R.sup.1, R.sup.2 and X have the meanings given, a process for the preparation of these compounds and their use, in particular in medicaments for influencing the metabolism of collagen and collagen-like substances or the biosynthesis of C1.sub.q.Type: GrantFiled: August 25, 1992Date of Patent: August 24, 1993Assignee: Hoechst AktiengesellschaftInventors: Martin Bickel, Dietrich Brocks, Harald Burghard, Volkmar Gunzler, Stephan Henke, Hartmut Hanauske-Abel
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Patent number: 5235060Abstract: The present invention relates to novel substituted pyridine compounds useful as intermediates in the preparation of herbicidal compounds and the process for the preparation of said pyridine compounds. ##STR1## wherein: R.sup.1 is selected from the group C.sub.1 -C.sub.4 alkyl;R.sup.2 is selected from the group hydrogen, C.sub.1 -C.sub.3 alkyl optionally substituted with methoxy or 1-3 fluorine and C.sub.1 -C.sub.2 alkoxy optionally substituted with 1-3 fluorine;R.sup.3 is selected from the group C.sub.1 -C.sub.3 alkyl substituted with methoxy or 1-3 fluorine;R.sup.4 is selected from the group SO.sub.2 R.sup.5, CO.sub.2 R.sup.5 and C(O)N(R.sup.6).sub.2 ;R.sup.5 is selected from the group C.sub.1 -C.sub.2 alkyl optionally substituted with C.sub.1 -C.sub.2 alkoxy or 1-3 halogens independently selected from the group chlorine and fluorine;R.sup.6 is C.sub.1 -C.sub.2 alkyl;M is selected from the group Li, Na, K, Mg, Ca, NH.sub.4, and alkyl substituted NH.sub.4.Type: GrantFiled: July 11, 1991Date of Patent: August 10, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Charles D. Adams, Greg A. Bullock, George C. Chiang
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Patent number: 5216170Abstract: A compound for promoting livestock production and for controlling obesity in humans and animals, of the formula ##STR1## in which A represents .dbd.CH-- or .dbd.N--,R.sup.0 represents hydrogen or methyl,R.sup.1 and R.sup.3 each independently represents hydrogen, hydroxyl, halogen, cyano, alkyl, halogenoalkyl, hydroxyalkyl, alkoxycarbonyl, aminocarbonyl, mono- and dialkylaminocarbonyl, alkoxy, halogenoalkoxy, halogenoalkylthio, NHSO.sub.2 -alkyl,R.sup.2 represents hydrogen, hydroxyl, alkoxy or the radical --NR.sup.5 R.sup.6,R.sup.4 represents hydrogen, C.sub.1 -C.sub.10 -alkyl which is optionally substituted by hydroxyl, halogen, alkoxy, acyloxy or the radical --NR.sup.7 R.sup.8, or represents the radical COR.sup.9 or the radical --O--Z--R.sup.10,Z represents C.sub.1 -C.sub.10 -alkylene, -alkenylene or alkynylene,R.sup.5 represents hydrogen or alkyl,R.sup.6 represents hydrogen, alkyl, halogenoalkyl or acyl, or R.sup.5 and R.sup.Type: GrantFiled: March 28, 1991Date of Patent: June 1, 1993Assignee: Bayer AktiengesellschaftInventors: Hans Lindel, Werner Hallenbach, Friedrich Berschauer, Heinrich A. Greife, Gernot Klotz
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Patent number: 5204478Abstract: An improved process for the preparation of 2,6-dichloro-5-fluoronicotinoyl chloride is described where a 2,6-dihydroxy-5-fluoronicotinic acid ester is converted in one step using phosphorus oxychloride and a lithium reagent to 2,6-dichloro-5-fluoronicotinoyl chloride and subsequent basic hydrolysis affords 2,6-dichloro-5-fluoronicotinic acid.Type: GrantFiled: August 20, 1992Date of Patent: April 20, 1993Assignee: Warner-Lambert CompanyInventor: Rex A. Jennings
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Patent number: 5198451Abstract: Novel N-substituted azaheterocyclic carboxylic acids and esters thereof in which a substituted alkyl chain forms part of the N-substituent, the compounds thus having the general formula I ##STR1## wherein Y is ##STR2## wherein R.sup.1 and R.sup.2 independently are C.sub.3-8 cycloalkyl phenyl or thienyl all of which may be optionally substituted with halogen, trifluoromethyl, C.sub.1-16 alkyl or C.sub.1-6 alkoxy;s is 1, 2 or 3;x is --CH.sub.2 --, --O-- or ##STR3## -wherein R.sup.3 is hydrogen or C.sub.1-6 -alkyl; r is 2, 3 or 4; R.sup.4 and R.sup.5 each represents hydrogen or may together represent a bond and R.sup.6 is OH or C.sub.1-8 -alkoxy; and pharmaceutically acceptable acid addition salts are potent inhibitors of GABA uptake from the synaptic cleft.Type: GrantFiled: November 20, 1990Date of Patent: March 30, 1993Assignee: Novo Nordisk A/SInventors: Knud E. Andersen, Lars J. Stray Knudsen, Ursula Sonnewald, Per O. Sorensen
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Patent number: 5196045Abstract: A compound having the structural formula ##STR1## wherein: Y is selected from O and S;R.sub.1 and R.sub.4 are independently selected from fluorinated methyl, chlorofluorinated methyl, and C.sub.1 -C.sub.4 alkyl, provided that not both R.sub.1 and R.sub.4 may be C.sub.1 -C.sub.4 alkyl;R.sub.2 is selected from hydrogen, lower alkyl, haloalkyl, alkenyl, alkynyl, haloalkenyl, and a cation;R.sub.3 is selected from C.sub.1 -C.sub.5 alkyl, cycloalkyl, cycloalkylalkyl, hydroxy, and alkoxy; andX is selected from ##STR2## in which R.sub.8 is selected from H, alkyl and CF.sub.3 and R.sub.10 is selected from F, Cl, --OR.sup.1, --SR.sup.1, --NHR.sup.1, --N(R.sup.1).sub.2, phenyl, substituted phenyl, and --P(OR.sup.1).sub.2where R.sup.1 is as defined above; ##STR3## wherein R.sup.1 is as defined above; ##STR4## wherein R.sub.14 and R.sub.15 are independently selected from hydrogen and alkyl; and --N.dbd.C.dbd.O and their use as herbicides.Type: GrantFiled: March 20, 1991Date of Patent: March 23, 1993Assignee: Monsanto CompanyInventors: Len F. Lee, Mark G. Dolson