Patents Examined by M. S. Howard
  • Patent number: 4988385
    Abstract: Compounds of the general formula ##STR1## in which R.sup.1 and R.sup.2 each independently represents an alkyl group, Z represents a nitrogen atom or a group CH unsubstituted or substituted by a substituent X, m is 0 or an integer from 1 to 4, the or each Y represents a halogen atom, n is 0 or an integer from 1 to 5, and the or each X represents a halogen atom or a group selected from alkyl, haloalkyl, cyanoalkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, cyano, nitro, alkylsulphonyl, alkylsulphinyl, and sulphonamido, have been found to have herbicidal activity.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: January 29, 1991
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Terence Gilkerson, Robert W. Shaw
  • Patent number: 4981993
    Abstract: The invention concerns new polyfunctional ethylenic monomers of the general formula (I): ##STR1## where R=cyano, substituted or unsubstituted acyl, substituted or unsubstituted alkoxycarbonyl or substituted or unsubstituted aryloxycarbonyl; R.sub.1 and R.sub.2 each represent --CHR.sub.3 R.sub.4 where R.sub.3 and R.sub.4 may be identical or different and represent H or an alkyl, alkenyl or aralkyl group. R.sub.1 and R.sub.2 may, alternatively, together form a radical --CH.sub.2 --(CR.sub.5 R.sub.6).sub.n --CHR.sub.7 where n=0 or 1 and R.sub.5, R.sub.6 and R.sub.7 may be identical or different and represent H or CH.sub.3.Particular monomers are: 2-cyano-4,4-dimethoxy-3-hydroxy-1-butene; 2-cyano-4,4-dibutoxy-3-hydroxy-1-butene; 4,4-dibutoxy-2-ethoxycarbonyl-3-hydroxy-1-butene; 2-butoxycarbonyl-4,4-dibutoxy-3-hydroxy-1-butene; 4,4-dimethoxy-2-hydroxythoxycarbonyl-1-butene; 4,4-dimethoxy-2-dimethylaminoethoxycarbonyl -3-hydroxy-1-butene; and 4,4-dimethoxy-2-ethoxycarbonyl-3-hydroxy-1-butene.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: January 1, 1991
    Assignee: Societe Francaise Hoechst
    Inventors: Didier Wilhelm, Alain Blanc
  • Patent number: 4981990
    Abstract: The invention relates to a process for the preparation of 4-phenylpyrrole derivatives of the formula I ##STR1## wherein R.sub.n, R.sub.1 and R.sub.2 are as defined in claim 1, which comprises reacting a phenacylamine of formula II ##STR2## with a compound of formula IIIT--CH.dbd.CH--R.sub.1 (III)to give an intermediate of formula IV ##STR3## and cyclizing said intermediate, in the presence of a base, to give the compound I.Important intermediates and novel final products are also described.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: January 1, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Pierre Martin
  • Patent number: 4975433
    Abstract: A compound of the formula: ##STR1## wherein: R and R.sub.1 may be the same or different and are selected from the group consisting of H; cycloalkyl groups having up to 10 carbon atoms; or straight or branched chain alkyl, alkenyl or alkynyl of 1 to 10 carbon atoms;R.sub.2 and R.sub.3 together with the nitrogen atom to which they are bonded form a pyrrolidine, piperidine, N-methyl piperazine, piperazine or morpholine ring;or a non-toxic pharmaceutically acceptable salt, adduct, oxide or other derivative thereof; and pharmaceutical compositions adapted for topical administration to a human or non-human animal and methods of topically administering the compositions to humans and non-human animals.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: December 4, 1990
    Assignee: University of Florida
    Inventor: Kenneth B. Sloan
  • Patent number: 4970309
    Abstract: This invention relates to a novel method of synthesizing di- and triarylmethane dye precursor compounds possessing a thiolactone ring-closing moiety, from the corresponding lactones.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: November 13, 1990
    Assignee: Polaroid Corporation
    Inventor: Patrick F. King
  • Patent number: 4968830
    Abstract: Halogen substituted aromatic compounds of the formula ##STR1## wherein Y is selected from the group CO.sub.2 H, COF, COCl, COBr, CF.sub.3, CN, NCO, or F, and X and X' are independently hydrogen or a halogen selected from the group F-, Cl- and Br-, at least one of X and X' being halogen; may be prepared by the liquid phase reaction of a brominating agent, at temperatures below about 190.degree. Celsius, with a correspondingly substituted cyclohexene or cyclohexadiene.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: November 6, 1990
    Assignee: Occidental Chemical Corporation
    Inventor: David Y. Tang
  • Patent number: 4968813
    Abstract: Certain new chemical compounds are derivatives of 4H-thiopyran-1,1-dioxides, and are useful as electron-transport agents in electrophotographic elements.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: November 6, 1990
    Assignee: Eastman Kodak Company
    Inventors: Norman G. Rule, Teh-Ming Kung
  • Patent number: 4963580
    Abstract: Position-4 and/or position-6 substituted 5-hydroxy-2,3-dihydrobenzothiophenes and analogs of the following general structural formula (I) are disclosed: ##STR1## These compounds are found to be potent inhibitors of leukotriene biosynthesis.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: October 16, 1990
    Assignee: Merck & Co., Inc.
    Inventors: Robert A. Zambias, Milton L. Hammond
  • Patent number: 4960904
    Abstract: Cyclic sulphates of formula: ##STR1## are prepared by oxidation of a cyclic sulphite of formula: ##STR2## with a hypohalite of an alkali or alkaline-earth metal and a catalytic quantity of a ruthernium derivative (RuO.sub.2, RuCl.sub.3). In formulae (I) and (II), R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are identical or different and each represents hydrogen, halogen, alkyl, alkoxy, aryl, aryloxy or alkoxycarbonyl.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: October 2, 1990
    Assignee: Rhone-Poulenc Sante
    Inventors: Pierre Le Roy, Bernadette Mandard-Cazin
  • Patent number: 4960768
    Abstract: Novel fungicidally active acyloxythiophene-carboxamides of the formula ##STR1## in which R.sup.1 represents alkyl, alkoxyalkyl, alkylthioalkyl, fluoroalkyl, cyanoalkyl, alkenyl, alkinyl or cycloalkyl,R.sup.2 represents alkyl or optionally substituted phenyl,R.sup.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: October 2, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Daum, Gerd Hanssler
  • Patent number: 4960758
    Abstract: The present invention relates to .beta.-D-phenylthioxyloside compounds selected from the group consisting of:(i) the .beta.-D-phenylthioxylosides of the formula: ##STR1## in which: R.sub.1 and R.sub.2, which can be identical or different, which represent a hydrogen atom or a trifluoromethy or cyano group,A represents CHOH or CO andY represents a hydrogen atom or an acyl group; and(ii) epimers thereof when A is CHOH.The said .beta.-D-phenylthioxyloside compounds are useful in therapy as antithrombotics.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: October 2, 1990
    Assignee: Fournier Innovation et Synergie
    Inventors: Soth Samreth, Francois Bellamy, Jean Millet
  • Patent number: 4959385
    Abstract: This invention relates to thioformamide derivatives of the formula: ##STR1## wherein R represents alkyl, Ar represents optionally substituted phenyl, Y represents an ethylene or methylene radical or a valency bond, and n represents 0 or 1, bioprecursors thereof and pharmaceutically acceptable salts thereof which possess useful pharmacological properties, processes for their preparation and compositions containing them.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: September 25, 1990
    Assignee: May & Baker Limited
    Inventors: David C. Cook, Terance W. Hart, Iain M. McLay, Malcolm N. Palfreyman, Roger J. Walsh, Jean-Claude Aloup
  • Patent number: 4958026
    Abstract: The disclosure relates to novel dopamine derivatives of general Formula I ##STR1## wherein A is a substituted phenyl residue of the structure ##STR2## wherein R.sup.1 and R.sup.2, being identical or different, mean hydrogen, C.sub.1-15 -alkyl and allyl,D is ##STR3## R.sub.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl, CF.sub.3, NH.sub.2 E is ##STR4## X is OH, NH.sub.2, ##STR5## and NH--SO.sub.2 --CF.sub.3, if Y=OH, Y is OH, NH.sub.2, ##STR6## NH--SO.sub.2 --CF.sub.3 and NH--SO.sub.2 --CH.sub.3, if X=OH, but wherein X and Y do not simultaneously mean OH, with R.sup.3 being C.sub.1-4 -alkyl, andZ is H or OH, and, if Z means the hydroxy group, the residue A can also be present in the tautomeric basic form,and their acid addition salts, their preparation, and use as medicinal agents having antihypertensive activity.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: September 18, 1990
    Assignee: Schering Aktiengesllschaft
    Inventors: Klaus Schoellkopf, Rudolf Albrecht, Manfred Lehmann, Gertrud Schroeder
  • Patent number: 4958021
    Abstract: Benzopyran derivatives of the formula ##STR1## where X is the radical ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and also the ring A have defined meanings are used in pressure- or heat-sensitive layers.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: September 18, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Guentner, Udo Mayer, Andreas Oberlinner
  • Patent number: 4946968
    Abstract: Alkali metal salts of 2-pyrrolidone-5-carboxylic acid (pyroglutamic acid) are prepared by heating the corresponding alkali metal salt of glutamic acid to a temperature between its melting point and 270.degree. C. until the water liberated by the intramolecular condensation (cyclocondensation) has been completely eliminated.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: August 7, 1990
    Assignee: Degussa Aktiengesellschaft
    Inventors: Hans-Peter Krimmer, Karlheinz Drauz, Hans Remmel
  • Patent number: 4946860
    Abstract: Disclosed are novel benzothiopyranyl derivatives as 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors useful as antihypercholesterolemic agents represented by the formula: ##STR1## their corresponding dihydroxy acids, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: August 7, 1990
    Assignee: Rorer Pharmaceutical Corporation
    Inventors: Robert L. Morris, Jeffrey N. Barton
  • Patent number: 4939280
    Abstract: 4-Oxaaldehydes of the formula ##STR1## are prepared by catalytic isomerization of 1,3-dioxanes by a process in which a 1,3-dioxane of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.4 and R.sup.5 are identical or different and are each hydrogen, a straight-chain or branched alkyl, alkenyl or alkynyl radical of not more than 18 carbon atoms, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, aralkyl or alkenylaryl radical of 5 to 16 carbon atoms or a heterocyclic radical, and furthermore R.sup.1 and R.sup.2 and/or R.sup.4 and R.sup.5 together with the carbon atom to which they are bonded may form a cycloalkane, a cycloalkene or a heterocyclic structure, and the stated radicals may furthermore carry substituents which are inert under the reaction conditions, and R.sup.3 is hydrogen or straight-chain or branched alkyl, is isomerized using a phosphate as a catalyst.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: July 3, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Hoelderich, Franz Merger, Helmut Lermer
  • Patent number: 4939136
    Abstract: The invention relates to new anellated indole derivatives of general formula 2, ##STR1## wherein p1 R.sub.0 is alkyl or alkoxy having 1-4 C-atoms, phenylalkoxy having 1-3 C-atoms in the alkoxy group, hydroxy, halogen, trifluoromethyl, trifluoromethoxy, trifluoromethylthio, or a group R.sub.7 S(O).sub.p, wherein R.sub.7 is alkyl having 1-4 C-atoms and p has the value 0, 1 or 2, or R.sub.0 is a group R.sub.8 R.sub.9 N, R.sub.8 R.sub.9 N--CO--CH.sub.2 -- or R.sub.8 R.sub.9 --N--CO wherein R.sub.8 and R.sub.9 are hydrogen or alkyl having 1-4 C-atoms or R.sub.8 R.sub.9 N forms a saturated 5- or 6-membered ring and n has the value 0, 1 or 2, Z together with the carbon atom and nitrogen atom to which Z is bound and the intermediate carbon atom, forms a heterocyclic group consisting of 5-8 ring atoms, in which, in addition to the nitrogen atom already present, a --CO--group or a second hetero atom from the group N, O, S, S-O or SO.sub.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: July 3, 1990
    Assignee: Duphar International Research B.V.
    Inventors: Hans H. Haeck, Derk Hamminga, Ineke Van Wijngaarden, Wouter Wouters
  • Patent number: 4937253
    Abstract: This invention relates to ester prodrugs for alkanoic acid compounds useful as leukotriene antagonists, and pharmaceutical compositions containing such ester prodrug compounds. This invention also relates to methods of treating diseases in which leukotrienes are a factor by administration of an effective amount of the above compounds or compositions.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: June 26, 1990
    Assignee: SmithKline Beecham Corporation
    Inventors: John G. Gleason, Ralph F. Hall, John F. Newton, Kathleen A. Phipps, Joanne Smallheer
  • Patent number: 4925658
    Abstract: Aromatic esters and thioesters have the formula ##STR1## wherein X represents oxygen or sulfur,R.sub.1 represents --CH.sub.2 OH, --CH(OH)--CH.sub.3, --COOR.sub.5 or ##STR2## R.sub.5 represents hydrogen, lower alkyl, lower alkenyl, monohydroxyalkyl or polyhydroxyalkyl,r' and r" represent hydrogen, lower alkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or benzyl optionally substituted, the residue of an amino acid or aminated sugar, or taken together form a heterocycle,R.sub.2 represents .alpha.,.alpha.'-disubstituted alkyl having 4-12 carbon atoms or mono- or polycyclic cycloalkyl having 5-12 carbon atoms whose carbon linking carbon is trisubstituted,R.sub.3 represents hydrogen, lower alkyl, or --Si(CH.sub.3).sub.2 R'.sub.3 wherein R'.sub.3 represents lower alkyl, andR.sub.4 represents hydrogen or lower alkyl, andthe salts of these aromatic esters and thioesters of formula (I) when R.sub.5 represents hydrogen.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: May 15, 1990
    Assignee: Centre International De Recherches dermatologiques (CIRD)
    Inventors: Braham Shroot, Jacques Eustache, Jean-Michel Bernardon