Nitrogen Bonded Directly To Ring Carbon Of The Oxazole Ring Patents (Class 548/233)
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Patent number: 4562201Abstract: The present invention relates to new compounds of the formula ##STR1## where X is ##STR2## alkylene, or --S-- where R.sub.1 is hydrogen, alkyl, or aryl; W is hydrogen, hydroxy, amino, alkyloxy, aryloxy, O-alkyl, or O-aralkyl; (Y).sub.A is --CH.sub.2 NR.sub.2 R.sub.3 where R.sub.2 and R.sub.3 may be hydrogen, substituted alkyls, aryls, or together with N form a 5 to 7 membered heterocyclic group; and Ar is a substituted or unsubstituted aryl. These compounds are useful in the treatment of various cardiac arrhythmias.Type: GrantFiled: July 26, 1982Date of Patent: December 31, 1985Assignee: American Hospital Supply CorporationInventors: David M. Stout, William L. Matier
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Patent number: 4548944Abstract: Compounds of the tautomeric formula ##STR1## wherein R, R.sub.1 and R.sub.2, which may be identical to or different from each other, are each hydrogen or alkyl of 1 to 4 carbon atoms;R.sub.3 is straight or branched alkyl, optionally interrupted by heteroatoms such as oxygen, sulfur or nitrogen; straight or branched alkenyl; alkynyl; cyano; cycloalkyl or cycloaliphatic alkyl; a bicyclic group; aryl; or a heterocyclic group; orR.sub.2 and R.sub.3, together with each other and the nitrogen atoms to which they are attached, form a heterocyclic group;R.sub.4 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms; andHet is a substituted or unsubstituted heterocycle containing two or three heteroatoms;tautomers thereof, and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as anti-ulcerogenics.Type: GrantFiled: February 10, 1983Date of Patent: October 22, 1985Assignee: Istituto de Angeli S.p.A.Inventors: Giuseppe Bietti, Enzo Cereda, Arturo Donetti, Piero del Soldato, Antonio Giachetti, Rosamaria Micheletti
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Patent number: 4525477Abstract: 2,3-Unsaturated nitrogen-containing heterocyclic compounds with a 3-nitro group and a 2-heterocyclyl alkylamino group. The alkyl group of 2-position substituents is preferably interrupted by sulfur or oxygen. The compounds of the invention are preferably dihydropyrroles or tetrahydropyrridines or pyrimidines. The compounds of the invention are histamine H.sub.2 -receptor antagonists.Type: GrantFiled: April 25, 1983Date of Patent: June 25, 1985Assignee: Smith Kline & French Laboratories LimitedInventors: Michael L. Roantree, Rodney C. Young
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Patent number: 4514571Abstract: A process for the preparation of a urea derivative having the formula: ##STR1## in which A represents a straight- or branched-chain alkyl group having 1-20 carbon atoms, an aryl group, or a heterocyclic group, and each of R.sup.1 and R.sup.2 represents hydrogen, a straight- or branched-chain alkyl group having 1-20 carbon atoms, an alicyclic group, or an aryl groups, which comprises:reacting sodium salt of an N-halogenamide with a quaternary ammonium salt to obtain its addition salt and then,reacting said addition salt with an amine derivative in the absence or presence of an organic solvent.Type: GrantFiled: May 19, 1983Date of Patent: April 30, 1985Assignee: UBE Industries, Ltd.Inventors: Mamoru Nakai, Fumio Iwata, Teruhiko Inoue
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Patent number: 4500343Abstract: 1-Heterocyclic-2-pyrrolidinone analogs, and intermediates thereof, as aquatic and terrestrial herbicides and aquatic algicides. The compounds and intermediates can also be used together with one or more herbicides to provide useful terrestrial herbicidal combinations.Type: GrantFiled: September 30, 1982Date of Patent: February 19, 1985Assignee: Eli Lilly and CompanyInventor: Kenneth W. Burow, Jr.
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Patent number: 4499090Abstract: This invention relates to new N-(5-aminomethyl-2-oxazoline-2-yl)-N'-phenylureas, the method for producing them and their application in therapy, particularly in treating convulsions, rhythm troubles, ulcerous disorders or inflammatory or edematous conditions.The products of this invention have the general formula: ##STR1## wherein R.sub.1 and R.sub.2 independently represent an alkyl radical of C.sub.1 to C.sub.4, or a carbocyclic alkyl radical having 3 or less rings, or a carbocyclic radical having 3 or less rings; R.sub.1 and R.sub.2 can form, with the nitrogen atom to which they are attached, a 4 to 7 member heterocycle containing 1 or 2 nitrogen atoms and 1 or 0 oxygen atoms, said heterocycle can be substituted by R with R being an alkyl radical of C.sub.1 to C.sub.4, allyl, benzyl, pyridyl, phenyl substituted or not by one or more substituents such as halogen, trihalomethyl, alkyl of C.sub.1 to C.sub.4, hydroxy, or alkoxy having a C.sub.1 to C.sub.4 alkyl radical.Type: GrantFiled: October 5, 1983Date of Patent: February 12, 1985Assignee: Societe Cortial, S.A.Inventors: Marie-Helene Creuzet, Claude Feniou, Christian Jarry, Gisele Prat, Henri Pontagnier
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Patent number: 4497812Abstract: This invention relates to new 2-amino-5-aminomethyl-2-oxazolines, the method of preparing them, and their pharmacological properties making possible their application in cardiovascular, psychotropic, antiinflammatory antiallergic, antihistamine, antiH.sub.2 therapy.These new products have the general formula: ##STR1## wherein R.sub.1 and R.sub.2 independently represent an alkyl radical of C.sub.1 to C.sub.4, or a carbocyclic alkyl radical having less than 4 rings, or a carbocyclic radical having less than 4 rings; R.sub.1 and R.sub.2 can form, with the nitrogen atom to which they are attached, a 4 to 7 member heterocycle containing 1 or 2 nitrogen atoms, and either 1 or 0 oxygen atoms. This heterocycle can be substituted by R with R being a lower alkyl, allyl, benzyl, pyridyl, phenyl substituted or not by one or more substituents such as halogen, trifluoromethyl, methyl, methoxy, hydroxy.Type: GrantFiled: October 5, 1983Date of Patent: February 5, 1985Assignee: Societe Cortial, S.A.Inventors: Marie-Helene Creuzet, Claude Feniou, Christian Jarry, Gisele Prat, Henri Pontagnier
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Patent number: 4489084Abstract: Described are oxazolyl (or thiazolyl) hydrazinoalkyl nitrile compounds of the formula ##STR1## wherein R is hydrogen or loweralkyl, R.sub.1 and R.sub.2 independently of one another denote hydrogen, loweralkyl, or phenyl or naphthyl substituted with halo, loweralkyl or loweralkoxy, X is oxygen or sulfur, n and m are each an integer from 0 to 3 inclusive, or pharmaceutically acceptable salts thereof. The compounds are useful as anti-inflammatory agents.Type: GrantFiled: June 30, 1983Date of Patent: December 18, 1984Assignee: Abbott LaboratoriesInventors: Fortuna Haviv, Francis A. J. Kerdesky
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Patent number: 4464374Abstract: The invention relates to a guanidine derivative of the formula: ##STR1## in which W is a 2-6C alkylene chain optionally substituted by 1 or 2 1-4C alkyls; E is O, S, SO, SO.sub.2 or NR.sup.3 in which R.sup.3 is H or 1-6C alkyl; R.sup.1 is H or a straight chain 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls; or R.sup.1 and R.sup.3 are joined to form a morpholine, pyrrolidine, piperidine or piperazine ring; X, P, Y, Q and R.sup.2 are as defined in the specification, and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing process, pharmaceutical compositions and intermediates are also described. The compounds of the formula I are histamine H-2 antagonists.Type: GrantFiled: July 23, 1981Date of Patent: August 7, 1984Assignees: ICI Americas Inc., Imperial Chemical Industries PLCInventors: Tobias O. Yellin, David J. Gilman, Derrick F. Jones, Keith Oldham
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Patent number: 4461903Abstract: Novel antibacterially-active esters of antibiotic nodusmicin. Activity is demonstrated against Staphylococcus aureus, Streptococcus pyogenes, and Sarcina lutea. Thus, these esters can be used in various known environments, using well-known procedures, to eradicate or control susceptible microbes.Type: GrantFiled: June 15, 1981Date of Patent: July 24, 1984Assignee: The Upjohn CompanyInventors: Barney J. Magerlein, Howard A. Whaley
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Patent number: 4440775Abstract: The compounds are novel N-substituted-N'-heterocyclic alkylthioureas, guanidines and 1-nitro-2,2-diaminoethylene compounds which are histamine H.sub.2 -antagonists.Type: GrantFiled: June 18, 1982Date of Patent: April 3, 1984Assignee: Smith Kline & French Laboratories LimitedInventors: Graham J. Durant, Charon R. Ganellin, Geoffrey R. Owen, Rodney C. Young
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Patent number: 4436912Abstract: Cephalosporin broad spectrum antibiotics possessing a 7.beta.-[2-[(2-aminooxazol)-4-yl]-2-(substituted oximino)]acetamido side chain and a variety of substituents at the 3-position of the cephalosporins are claimed. Also claimed are intermediates in the synthesis of the above cephalosporin antibiotics.Type: GrantFiled: September 13, 1982Date of Patent: March 13, 1984Assignee: Eli Lilly and CompanyInventor: William J. Wheeler
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Patent number: 4430499Abstract: Cephalosporin broad spectrum antibiotics possessing a 7.beta.-[2-[(2-aminooxazol)-4-yl]-2-(substituted oximino)acetamido side chain and a variety of substituents at the 3-position of the cephalosporins are claimed. Also claimed are intermediates in the synthesis of the above cephalosporin antibiotics.Type: GrantFiled: September 8, 1981Date of Patent: February 7, 1984Assignee: Eli Lilly and CompanyInventor: William J. Wheeler
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Patent number: 4414211Abstract: 5-Membered, 6-membered and 7-membered heterocyclic derivatives of guanidine having hypoglycemic activity.Type: GrantFiled: March 14, 1980Date of Patent: November 8, 1983Assignee: McNeilab, Inc.Inventor: Chris R. Rasmussen
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Patent number: 4409216Abstract: A compound, with hypoglycaemic activity, having formula (II) or a pharmaceutically acceptable acid addition salt thereof: ##STR1## wherein X represents oxygen or sulphur;R.sup.1 R.sup.2 are the same or different and represent hydrogen, halogen, C.sub.1-6 alkyl, phenyl, benzyl,C.sub.3-6 cycloalkyl, carbo-C.sub.1-6 alkoxy or C.sub.1-6 carboxy or R.sup.1 and R.sup.2 represent the remaining members of a benzene ring;R.sup.3 represents hydrogen, C.sub.1-6 alkyl, phenyl or benzyl;R.sup.4 represents hydrogen or C.sub.1-6 alkyl;R.sup.5 represents C.sub.1-6 alkyl, phenyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl, and C.sub.1-6 alkoxy; or benzyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl and C.sub.1-6 alkoxy; or R.sup.4 and R.sup.5 together represent the remaining members of a 5- or 6- membered ring optionally containing an oxygen, sulphur or additional nitrogen atom and being optionally substituted with C.sub.1-6 alkyl; andR.sup.Type: GrantFiled: April 11, 1980Date of Patent: October 11, 1983Assignee: Beecham Group LimitedInventor: Barrie C. C. Cantello
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Patent number: 4407808Abstract: 3-Nitro-2-substituted aminopyrroles are histamine H.sub.2 -receptor antagonists. The 2- position substituent is a fully-unsaturated heterocyclyl alkyl group preferably with alkyl group interrupted by sulfur or oxygen. The 4- and 5- positions of the pyrrole ring can also be substituted.Type: GrantFiled: January 28, 1982Date of Patent: October 4, 1983Assignee: Smith Kline & French Laboratories LimitedInventors: Michael L. Roantree, Rodney C. Young
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Patent number: 4396621Abstract: Oxothia compounds, especially 2-oxo-2,3-dihydro-benzo[b]-thiophene compounds of the formula ##STR1## in which Ph represents an optionally substituted 1,2-phenylene radical, X represents oxygen or sulphur, R.sub.1 represents an organic radical bonded via a carbon atom and R.sub.2 denotes hydrogen or an optionally substituted hydrocarbon radical of aliphatic character, and their salts are useful as peripheral analgetics and/or as antiphlogistic uricosuric and/or thrombolytic agents.Type: GrantFiled: November 7, 1980Date of Patent: August 2, 1983Assignee: Ciba-Geigy CorporationInventors: Raymond Bernasconi, Pier G. Ferrini, Richard Goschke, Jacques Gosteli
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Patent number: 4388316Abstract: Broad spectrum cephalosporin antibiotics represented by the formula, ##STR1## pharmaceutical compositions of the antibiotics, and a method for treating infections are provided. In the formula, R is 2-aminooxazol-4-yl, 5-amino-1,2,4-oxadiazol-3-yl or 5-aminoisoxazol-3-yl; R' is eg. C.sub.1 -C.sub.4 alkyl; R.sub.1 is H, NH.sub.2, chloro, C.sub.1 -C.sub.4 NH--, (C.sub.1 -C.sub.4).sub.2 N--, etc. The antibiotics are best prepared by reacting a pyrazine with a 3-iodomethyl cephalosporin.Type: GrantFiled: October 2, 1981Date of Patent: June 14, 1983Assignee: Eli Lilly and CompanyInventors: William H. W. Lunn, William J. Wheeler
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Patent number: 4382932Abstract: Broad spectrum cephalosporin antibiotics represented by the formula ##STR1## wherein R is a 3-aminoisoxazol-5-yl, 2-aminooxazol-4-yl, or a 5-amino-1,2,4-oxadiazol-3-yl group; R.sub.1 is isoquinolinium or substituted isoquinolinium; and R' is C.sub.1 -C.sub.4 alkyl, an N-substituted carbamoyl group, or a carboxy-substituted alkyl or cycloalkyl group; and the pharmaceutically acceptable non-toxic salts thereof; are prepared by the reaction of a 3-iodomethyl cephalosporin, having the above 2-(amino-substituted heterocyclic)-2-oximinoacetyl side chain, with isoquinoline or a substituted isoquinoline. Pharmaceutical formulations of the antibiotics and a method for treating bacterial infections with the antibiotics are provided.Type: GrantFiled: September 8, 1981Date of Patent: May 10, 1983Assignee: Eli Lilly and CompanyInventors: William H. W. Lunn, William J. Wheeler
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Patent number: 4382929Abstract: The invention provides compounds of the general formula (I) ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in which one of R.sub.1 and R.sub.2 represents hydrogen, halogen or a C.sub.1-4 alkyl group which may be optionally substituted by hydroxy or C.sub.1-4 alkoxy, and the other represents the group R.sub.4 R.sub.5 NAlk-- in which R.sub.4 represents hydrogen, C.sub.1-10 alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, heteroaralkyl, trifluoroalkyl, or alkyl substituted by hydroxy, alkoxy, amino, alkylamino, dialkylamino or cycloalkyl, and R.sub.5 represents hydrogen or a C.sub.1-4 alkyl group or R.sub.4 and R.sub.5 may, together with the nitrogen atom to which they are attached, form a 5 to 10 membered ring which may be saturated or may contain at least one double bond, may be unsubstituted or may be substituted by one or more C.sub.Type: GrantFiled: October 23, 1980Date of Patent: May 10, 1983Assignee: Glaxo Group LimitedInventors: John Bradshaw, Duncan B. Judd, Barry J. Price, John W. Clitherow
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Patent number: 4382931Abstract: Broad spectrum cephalosporin antibiotics represented by the formula ##STR1## are provided. In the formula, R represents a 2-aminooxazol-4-yl, 5-amino-1,2,4-oxadiazol-3-yl, or 5-aminoisoxazol-3-yl heterocyclic group; R' is hydrogen, C.sub.1 -C.sub.4 alkyl, a carboxy-substituted alkyl or cycloalkyl group or a C.sub.1 -C.sub.4 alkyl ester or carboxy-protecting ester derivative thereof; or an N-substituted carbamoyl group; and R.sub.1 and R.sub.2 are independently hydrogen or a substituent group, eg. halo, hydroxy, amino, carbamoyl, alkyl, or trifluoromethyl. The antibiotics are useful in a method for treating bacterial infections and can be formulated into pharmaceutical formulations for such use.Type: GrantFiled: September 8, 1981Date of Patent: May 10, 1983Assignee: Eli Lilly and CompanyInventors: William H. W. Lunn, William J. Wheeler
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Patent number: 4380641Abstract: 1-(2,6-disubstituted benzoyl)-3-(4-alkoxycarbonyl-5-oxazolyl)ureas useful as insecticides.Type: GrantFiled: October 26, 1981Date of Patent: April 19, 1983Assignee: Eli Lilly and CompanyInventor: Emily J. Canada
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Patent number: 4378366Abstract: This invention relates to trifluorethylamines and to a process for producing the same.These trifluorethylamines are substituted on the nitrogen atom with a lower alkyl or a cyclo lower alkyl radical.They are endowed with interesting pharmacological properties.Type: GrantFiled: August 24, 1981Date of Patent: March 29, 1983Assignee: Science Union et CieInventors: Charles Malen, Pierre Roger, Michel Laubie
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Patent number: 4375472Abstract: Amidinosulphonic acid derivatives carrying an unsaturated nitrogen heterocycle-containing substituent, representative of which are N-methyl-N'[2-(5-methyl-4-imidazolylmethylthio)- ethyl] amidinosulphonic acid and N-methyl-N'-[2-(3-chloropyrid-2-ylmethylthio) ethyl] amidinosulphonic acid, are histamine H.sub.2 -receptor antagonists.Type: GrantFiled: November 24, 1980Date of Patent: March 1, 1983Assignee: Smith Kline & French Laboratories LimitedInventors: Graham J. Durant, Rodney C. Young, Zev Tashma
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Patent number: 4372963Abstract: Bisamidines carrying one unsaturated nitrogen heterocyclo-containing substituent, representative of which i; 1-[N'-(2-(5-methyl-4-imidazolyl)methylthio)ethyl)guanidino]-8-[N'-methylgu anidino]octane, are histamine H.sub.2 -antagonists.Type: GrantFiled: March 27, 1981Date of Patent: February 8, 1983Assignee: Smith Kline & French Laboratories LimitedInventors: Graham J. Durant, Peter D. Miles
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Patent number: 4342765Abstract: Guanidine derivatives which are histamine H-2 antagonists and which inhibit gastric acid secretion. These derivatives have the formula: ##STR1## in which X is oxygen or sulphur;Y is nitrogen or a CH radical;n is 1, 2, 3 or 4;m is 0 or 1;R.sup.1 is, for example, hydrogen or alkyl of 1-6 carbons; andR.sup.2 is, for example, ##STR2## and are characterized by the guanidino and cycloalkyl substituents which are attached directly to the heterocyclic ring.Type: GrantFiled: January 16, 1980Date of Patent: August 3, 1982Assignee: Imperial Chemical Industries LimitedInventors: Derrick F. Jones, Keith Oldham
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Patent number: 4328169Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of an alkylene oxide derivative and alkali metal compound. Water can also be present and/or the reaction may be carried out in an inert organic diluent.Type: GrantFiled: October 27, 1980Date of Patent: May 4, 1982Assignee: Emery Industries, Inc.Inventor: Allen L. Hall
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Patent number: 4328168Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of a cyclic polyether compound and alkali metal compound. Water can also be present and/or the reaction may be carried out in an inert organic diluent.Type: GrantFiled: October 27, 1980Date of Patent: May 4, 1982Assignee: Emery Industries, Inc.Inventor: Richard G. Fayter, Jr.
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Patent number: 4319026Abstract: A class of novel compounds is disclosed which has utility as plant growth regulators, having the general formula: ##STR1## in which X is O or S,Y is one of the group: ##STR2## R is H or CH.sub.3, Q is phenyl or chlorophenyl whenQ' is hydrogen, or Q and Q' together may form the remainder of a benzene ring.Type: GrantFiled: August 14, 1980Date of Patent: March 9, 1982Assignee: Gulf Oil CorporationInventors: Loren W. Hedrich, Natu R. Patel, Joel L. Kirkpatrick
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Patent number: 4315019Abstract: This invention relates to novel substituted aryl lower alkamine and more precisely to arylmethylamine, the methyl group of which is substituted with one more polyfluoromethyl radicals.This invention also relates to the process for producing said compounds.The resulting compounds have pharmacological utility and may be used as a drug in human and veterinary medicine.Type: GrantFiled: August 18, 1980Date of Patent: February 9, 1982Assignee: Science Union et CieInventors: Charles Malen, Pierre Roger, Michel Laubie
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Patent number: 4315020Abstract: Certain phenyl amines have been prepared wherein the "methyl" carbon is substituted with a polyfluoroalkyl radical. The compounds form acid addition salts, exist in resolvable stereoisomeric forms, and are useful for treating hypertension. Formulations for human and veterinary medicine are described, as well as methods of use.Type: GrantFiled: October 15, 1980Date of Patent: February 9, 1982Assignee: Science Union et CieInventors: Charles E. Malen, Pierre Roger, Michel Laubie
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Patent number: 4315009Abstract: The guanidine derivative has the formula: ##STR1## where X is O or S: Y is N, CH or CCH.sub.3 : m is 0 or 1: R.sup.1 is hydrogen and R.sup.2 cyano, trifluoroacetyl, C.sub.1-6 alkanoyl, 4,5-dihydro-4-oxothiazol-2-yl or A-B where A is 3,4-dioxocyclobutene-1,2-diyl or C.dbd.Z where Z is oxygen, sulphur, NCN, NNO.sub.2, CHNO.sub.2, NCONH.sub.2, C(CN).sub.2, NCOR.sup.6, NCO.sub.2 R.sup.6, NSO.sub.2 R.sup.6 or NR.sup.7 where R.sup.6 is C.sub.1-6 alkyl and R.sup.7 is hydrogen or C.sub.1-6 alkyl and B is C.sub.1-6 alkyl, alkoxy or alkylthio or NR.sup.8 R.sup.9 where R.sup.8 and R.sup.9 are hydrogen, C.sub.1-10 alkyl, C.sub.3-10 -alkenyl, alkynyl or alkoxyalkyl, C.sub.2-6 (primary hydroxy)alkyl, or, when R.sup.9 is hydrogen, R.sup.8 is 2-[[5-dimethylaminomethylfuran-2-yl]methylthio]-ethylamino or R.sup.8 and R.sup.9 are together a 5- or 6-membered non-aromatic ring optionally containing an additional N or O; or R.sup.1 and R.sup.2 are together imidazolidin-2-ylidene: R.sup.3 is hydrogen or fluorine: R.sup.Type: GrantFiled: January 18, 1979Date of Patent: February 9, 1982Assignee: Imperial Chemical Industries LimitedInventors: Derrick F. Jones, Keith Oldham
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Patent number: 4277485Abstract: The compounds are ethylene derivatives which are inhibitors of histamine activity, in particular, inhibitors of H-2 histamine receptors. A compound of this invention is 1-nitro-2-methylamino-2-[2-((4-methyl-5-imidazolyl)methylthio)-ethylamino] ethylene.Type: GrantFiled: February 4, 1980Date of Patent: July 7, 1981Assignee: Smith Kline & French Laboratories LimitedInventors: Graham J. Durant, John C. Emmett, Charon F. Ganellin, Hunter D. Prain
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Patent number: 4266944Abstract: Described are acyl glycine oxazolines of the formula: ##STR1## where R is lauryl, C.sub.11 H.sub.23, oleyl or stearyl; and R' is hydrogen or lower alkyl. Also disclosed are motor fuel compositions in the gasoline boiling range containing a corrosion-inhibiting and detergent amount of the above compounds.Type: GrantFiled: December 17, 1979Date of Patent: May 12, 1981Assignee: Texaco Inc.Inventor: Rodney L. Sung
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Patent number: 4267345Abstract: Certain arylmethyl amines have been prepared wherein the "methyl" carbon is substituted with a polyfluoroalkyl radical. The compounds form acid addition salts, exist in resolvable stereoisomeric forms, and are useful for treating hypertension. Formulations for human and veterinary medicine are described, as well as methods of use.Type: GrantFiled: April 19, 1979Date of Patent: May 12, 1981Assignee: Science Union et CieInventors: Charles E. Malen, Pierre Roger, Michel Laubie
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Patent number: 4252739Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yields. The process involves reacting an alkylating agent and an activated methylene compound in the presence of an onium compound, an alkali metal compound and water, which while only necessary in trace amounts can be present in substantial quantities.Type: GrantFiled: August 20, 1979Date of Patent: February 24, 1981Assignee: Emery Industries, Inc.Inventors: Richard G. Fayter, Jr., John F. White, Eugene G. Harris
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Patent number: 4250173Abstract: A compound, with hypolgycaemic activity, having formula (II) or a pharmaceutically acceptable quaternary ammonium or acid addition salt thereof: ##STR1## wherein X represents oxygen or sulphur; n.sub.7 represents zero or 1;R.sup.7 represents hydrogen or C.sub.1-6 alkyl;R.sup.1 and R.sup.2 are the same or different and represent hydrogen, C.sub.1-6 alkyl, phenyl, benzyl, or C.sub.3-6 cycloalkyl;R.sup.3 represents hydrogen, C.sub.1-6 alkyl, phenyl or benzyl;R.sup.4 represents hydrogen or C.sub.1-6 alkyl;R.sup.5 represents C.sub.1-6 alkyl, phenyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl, and C.sub.1-6 alkoxy; or benzyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl and C.sub.1-6 alkoxy; or R.sup.4 and R.sup.5 together represent the remaining members of a 5- or 6-membered ring optionally containing an oxygen, sulphur or additional nitrogen atom and being optionally substituted with C.sub.1-6 alkyl, carboxy or C.sub.Type: GrantFiled: November 14, 1979Date of Patent: February 10, 1981Assignee: Beecham Group LimitedInventor: Barrie C. C. Cantello
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Patent number: 4240797Abstract: Spin labels, especially dianionic aromatic spin labels which can bind to the first specific high-affinity bilirubin-binding site on serum albumin, and which are quantitatively displaceable into solution from said site in the presence of bilirubin, can be used in an assay for bilirubin-binding capacity. In the assay, an excess of spin label is mixed with the serum albumin or serum and is titrated with standard bilirubin. ESR spectroscopy indicates a change in the rate of spin label release with addition of bilirubin, giving a value indicative of bilirubin-binding capacity. Novel dianionic aromatic spin labels are also disclosed.Type: GrantFiled: October 18, 1977Date of Patent: December 23, 1980Assignee: The Governing Council of the University of TorontoInventor: Jen C. Hsia
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Patent number: 4241072Abstract: Organic chemical compounds based upon the urea molecule are disclosed which have potent gastric secretion inhibitory properties. The urea is substituted with a heterocyclic ring which may be substituted with one or more loweralkyl groups. The urea is also substituted with loweralkyl and a lower-alkylamino loweralkyl group. The compounds have profound effects on the inhibition of gastric secretions in the gastro-intestinal tract, and compositions for such uses are also disclosed.Type: GrantFiled: January 18, 1979Date of Patent: December 23, 1980Assignee: Merck & Co., Inc.Inventor: William A. Bolhofer
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Patent number: 4230865Abstract: The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-thioureas and ureas which are inhibitors of histamine activity.Type: GrantFiled: September 8, 1978Date of Patent: October 28, 1980Assignee: Smith Kline & French Laboratories LimitedInventors: Graham J. Durant, John C. Emmett, Charon R. Ganellin
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Patent number: 4228291Abstract: The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-guanidines which are inhibitors of histamine activity.Type: GrantFiled: October 4, 1978Date of Patent: October 14, 1980Assignee: Smith Kline & French Laboratories LimitedInventors: Graham J. Durant, John C. Emmett, Charon R. Genellin
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Patent number: 4216219Abstract: Novel compounds are described of the formula ##STR1## where R is C.sub.2-6 alkyl, R.sup.1 and R.sup.2 are hydrogen or C.sub.1-4 alkyl and n is 3 to 6. The compounds are useful in the prophylactic treatment of immediate hypersensitivity diseases including asthma.Type: GrantFiled: February 7, 1979Date of Patent: August 5, 1980Assignee: Lilly Industries LimitedInventors: William J. Ross, Alec Todd
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Patent number: 4175131Abstract: A class of novel 2-oxazolyl ureas and carbamates having anti-allergic activity are described together with methods of making such compounds and pharmaceutical compositions containing the active compounds of the invention.Type: GrantFiled: December 27, 1977Date of Patent: November 20, 1979Assignee: Lilly Industries LimitedInventors: William J. Ross, Alex Todd, John P. Verge
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Patent number: T104903Abstract: Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated: ##STR1## wherein: X is ##STR2## Y.sup.1 and Y.sup.2 individually represent hydrogen or an aromatic nucleus or together represent the atoms completing a fused aromatic nucleus;Z is ##STR3## R is hydrogen or lower alkyl of from 1 to 5 carbon atoms; and R.sup.1 is hydrogen or methyl.Type: GrantFiled: February 7, 1984Date of Patent: December 4, 1984Inventors: Roger Lok, John P. Freeman, William H. Baum