Patents Examined by Anton H. Sutto
  • Patent number: 4929746
    Abstract: Organic esters of chlorine-containing or bromine-containing phosphorus acids and BIS-GMA, as well as organic esters of phosphorus acids having chlorine or bromine bonded directly to phosphorus, the organic radical of said esters containing at least one polymerizable functional group. Also described are dental liner, restorative, composite, and adhesive compositions containing such organic esters, as well as methods for using such compositions to repair or veneer dental tissue.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: May 29, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James E. Bunker
  • Patent number: 4929549
    Abstract: Novel 5-carbamoylthieno[2,3-b]thiophene-2-sulfonamides and derivatives thereof are prepared in reactions of 5-methoxycarbonylthieno-[2,3-b]thiophene-2-sulfonamide with alkylamines, alkoxyalkylamines and hydroxyalkylamines. These compounds are useful for the treatment of elevated intraocular pressure in compositions including ophthalmic drops and inserts.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: May 29, 1990
    Assignee: Merck & Co., Inc.
    Inventors: George D. Hartman, John D. Prugh
  • Patent number: 4929745
    Abstract: Phosphorus compounds having at least one chlorine, bromine or iodine bonded directly to phosphorus are transhalogenated with fluorine by reaction with a hydrogen fluoride salt of a pyridine-type nitrogen base, e.g. pyridine hydrofluoride in an inert solvent.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: May 29, 1990
    Assignee: Ehtyl Corporation
    Inventors: Kestutis A. Keblys, Meng-Sheng Ao, Lester P. J. Burton
  • Patent number: 4927814
    Abstract: The present invention provides disphosphonates of the general formula: ##STR1## wherein R.sub.1 is a straight-chain or branched, saturated or unsaturated aliphatic hydrocarbon radical of 1-9 carbon atoms which is optionally substituted by phenyl or cyclohexyl, R.sub.2 is cyclohexyl or cyclohexylmethyl, benzyl or a straight-chained or branched, saturated or unsaturated aliphatic hydrocarbon of 4 to 18 carbon atoms which is optionally substituted by phenyl or oxygen wherein the oxygen can be esterified or etherified, R.sub.3 is hydrogen or a straight-chain or branched alkyl of 1-4 carbon atoms, X is a straight-chain or branched alkylene chain of 1-6 carbon atoms and Y is hydrogen, hydroxyl or an amino group optionally substituted by alkyl radicals of 1-6 carbon atoms; as well as the pharmacologically acceptable salts thereof.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: May 22, 1990
    Assignee: Boehringer Mannheim GmbH
    Inventors: Rudi Gall, Elmar Bosies
  • Patent number: 4927935
    Abstract: A compound of the formula I ##STR1## where A is nitro, amino, halocarbonyl or halosulfonyl, R is hydrogen, halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkanoylamino, hydroxyl, C.sub.1 -C.sub.4 -alkoxy phenoxy which is unsubstituted by methyl or chloro, mercapto, C.sub.1 -C.sub.4 -alkylthio, phenylthio which is unsubstituted or substituted by ethyl, fluoro, or methoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, phenoxycarbonyl which is unsubstituted or substituted by isopropyl, bromo, or methoxy, carbamoyl, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl which is unsubstituted or substituted by ethyl, chloro, or isopropoxy, sulfamoyl or trifluoromethyl or is C.sub.1 -C.sub.4 -alkyl which may be substituted by hydroxyl, C.sub.1 -C.sub.4 -alkoxy or halogen, and X and Y are each, independently of one another, halogen, hydroxysulfonyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: May 22, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Hackenberger, Manfred Patsch
  • Patent number: 4925954
    Abstract: A vat dye based on monobromofluoranthene is prepared by a process in which monobromofluoranthene which contains no more than 7% of dibromofluoranthene is reacted with 1-amino-4-benzoylaminoanthraquinone, the reaction product is condensed at from 50.degree. to 70.degree. C. in 83-88% strength sulfuric acid to give the carbazole compound, and the latter is then further brominated to a bromine content of from 20 to 23% by weight.The dyes obtained by the novel process are very useful for dyeing cotton.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: May 15, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Patsch, Gerhard Epple, Helmut Flohr, Helmut Degen, Uwe Nahr
  • Patent number: 4925941
    Abstract: A quinoxaline is oxidized by means of hydrogen peroxide in an inert solvent medium in the presence of water and of a catalyst selected from selenium and selenium compounds.The process applies to the preparation of substituted and unsubstituted 2,3-dihydroxyquinoxalines.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: May 15, 1990
    Assignee: Interox (Societe Anonyme)
    Inventors: Paul Deschrijver, Jean-Pierre Ganhy
  • Patent number: 4925846
    Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R.sub.1 is thiazol-2-yl optionally substituted by 1 or 2 alkyl of 1 to 3 carbon atoms optionally substituted by one or more fluorine or --COOAlk, Alk is alkyl of 1 to 3 carbon atoms, R.sub.2 and R.sub.3 are individually selected from the group consisting of hydrogen, alkyl of 1 to 3 carbon atoms and alkenyl of 2 to 5 carbon atoms or R.sub.2 and R.sub.3 together form alkylene of 3 to 5 carbon atoms, X is oxygen or sulfur and R.sub.4 is alkyl of 1 to 3 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having minor tranquillizing activity and useful for the treatment of obesity and cognitive impairment.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: May 15, 1990
    Assignee: Roussel Uclaf
    Inventors: Robert M. J. Deacon, Roger J. Gillespie, Colin R. Gardner, Wilfred R. Tully
  • Patent number: 4925983
    Abstract: This invention describes nitrogen containing compounds which are boronated in the presence of a protic material such as water or an alcohol or mixtures thereof.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: May 15, 1990
    Assignee: The Lubrizol Corporation
    Inventor: Thomas F. Steckel
  • Patent number: 4925955
    Abstract: This invention relates to a process for resolving (.+-.)-cis-1-ethyl-1,3,4,9-tetrahydro-4-(phenylmethyl)pyrano[3,4-b]indole- 1-acetic acid (pemedolac) usinig brucine to obtain the corresponding (1S,4R)-eutomer. Said eutomer is useful as an analgesic.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: May 15, 1990
    Assignee: American Home Products Corporation
    Inventors: Andre A. Asselin, Jean Schmid
  • Patent number: 4924024
    Abstract: Compounds which are useful as inhibitors of cholesterol biosynthesis and thus as hypocholesterolemic agents are provided which have the structure ##STR1## wherein Q is ##STR2## or a bond; Z is --(CH.sub.2).sub.n -- or --(CH.sub.2).sub.p --CH.dbd.CH--(CH.sub.2).sub.m --, wherein n is 1 to 5; p is 0, 1 or 2; m is 0, 1 or 2;R, R.sup.1 and R.sup.1a are the same or different and are H, lower alkyl or a metal ion; andR.sup.2 and R.sup.3 may be the same or different and are H or halogen.New intermediates used in preparing the above compounds and method for preparing same, pharmaceutical compositions containing such compounds and a method for using such compounds to inhibit cholesterol biosynthesis are also provided.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: May 8, 1990
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Scott A. Biller
  • Patent number: 4924023
    Abstract: A process for regioselectively preparing phosphorylated cyclitols, in particular phosphorylated inositols such as myo-inositol 1,4,5-tris(phosphate) and myo-inositol 1,3,4,5-tetrakis(phosphate). Novel cyclitols produced by means of this process are also described.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: May 8, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frank W. Hobbs, James L. Meek
  • Patent number: 4923872
    Abstract: The present invention is novel derivatives of pyrrolo[3,2-d]pyrimidines and pharmaceutical compositions and methods of use therefor. The derivatives are inhibitors of purine nucleoside phosphorylase selectively cytotoxic to T-cells but not to B-cells in the presence of 2'-deoxyguanosine and, therefore, are for use in the treatment of autoimmune diseases, gout, psoriasis or rejection of transplantation.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: May 8, 1990
    Assignee: Warner-Lambert Co.
    Inventors: Catherine R. Kostlan, Jagadish C. Sircar
  • Patent number: 4923861
    Abstract: Novel 6-[2-[2-(substituted amino)-3-quinolinyl]-ethenyl and ethyl]tetrahydro-4-hydroxypyran-2-ones and/or oxides and the corresponding dihydroxy ring opened acids and esters are described, as well as methods for the preparation and pharmaceutical compositions of same, which are useful as inhibitors of the enzyme 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMG-CoA reductase) and are thus useful hypolipidemic and hypocholesterolemic agents.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: May 8, 1990
    Assignee: Warner-Lambert Company
    Inventors: Joseph A. Picard, Drago R. Sliskovic
  • Patent number: 4923996
    Abstract: The invention relates to rhodium complexes of the formula[A--O--(CH.sub.2 CH.sub.2 O).sub.n --A].sup.2+ 2 X.sup.- Iaand[A--O--(CH.sub.2 CH.sub.2 O).sub.m --CH.sub.3 ].sup.+ X.sup.-Ibin whichn=5-1,000,m=5-250,X.sup.- denotes a tetrafluoroborate, hexafluorophosphate or per-chlorate anion,A denotes a radical of the formula ##STR1## (en).sub.2 denotes two molecules of a monoolefin or one molecule of a diolefinAr denotes phenyl or phenyl which is substituted by one or two alkyl groups having 1 or 2 carbon atoms andR.sup.1 denotes an arylene or alkylene bridge, and their use for the preparation of L-phosphinothricin and its derivatives by enantioselective catalytic hydrogenation of 2,3-dehydrophosphinothricin (derivatives).
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: May 8, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolf-Dieter Muller, Hans-Jerg Kleiner
  • Patent number: 4921991
    Abstract: Phosphonic diesters, capable of being employed as intermediates for making herbicides, having the formula ##STR1## in which R denotes a hydrogenolyzable group; preferably an arylalkyl group,R.sup.1 denotes a hydrolyzable group,R.sup.2 denotes a hydrogen atom or hydrolyzable group such as those defined for R.sup.1.Preparation of the compounds of the formula (I) from phosphites, formaldehyde and N-substituted glycine esters.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: May 1, 1990
    Inventor: Guy Lacroix
  • Patent number: 4922006
    Abstract: The process for the preparation of L-phosphinothricine (derivatives) by homogeneous asymmetric hydrogenation of 2,3-dehydrophospinothricine (derivatives) by means of suitable ruthenium, rhodium or iridium catalysts.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: May 1, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hans-Joachim Zeiss
  • Patent number: 4921992
    Abstract: Amide compounds useful as additives in lubricating fluids as extreme pressure/antiwear agents are produced on a manufacturing scale. The amides are produced by simultaneously adding together and reacting a phosphorus-containing acid and aqueous acrylamide. Substantially equal molar amounts of the phosphorus-containing acid and the aqueous acrylamide are added together with sufficient cooling to maintain the reaction at a temperature below 50.degree. C. After isolation, the reaction product obtained is preferably further reacted with a coupling agent, preferably paraformaldehyde.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: May 1, 1990
    Assignee: The Lubrizol Corporation
    Inventors: Paul E. Adams, Darryl W. Kinzer
  • Patent number: 4921961
    Abstract: The invention is novel 2-carbamoylnicotinic and 3-quinolinecarboxylic acids and esters which are intermediate compounds for the preparation of 2-(2-imidazolin-2-yl)pyridine and quinoline herbicides.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: May 1, 1990
    Assignee: American Cyanamid Company
    Inventor: Marinus Los
  • Patent number: 4921939
    Abstract: Substituted guanidines and ethanamidines are provided as high potency sweetening agents.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: May 1, 1990
    Assignee: Universite Claude Bernard -Lyon 1
    Inventors: Claude Nofre, Jean M. Tinti, Farroudja Ouar Chatzopoulos