Patents Examined by D. B. Springer
  • Patent number: 4707488
    Abstract: The compounds of this invention are 1-phenylalkyl-2-mercaptotetrazole compounds which are dopamine-.beta.-hydroxylase inhibitors.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: November 17, 1987
    Assignee: Smithkline Beckman Corporation
    Inventors: Carl Kaiser, Lawrence I. Kruse
  • Patent number: 4707483
    Abstract: 1-Phenyl-3-benzazepine compounds are useful in treating gastrointestinal motility disorders. A particular compound of this invention is 8-hydroxy-3-methyl-1-phenyl-7-phenylthio-2,3,4,5-tetrahydro-1H-3-benzazepi ne.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: November 17, 1987
    Assignee: Smithkline Beckman Corporation
    Inventors: William E. Bondinell, Thomas Wen-Fu Ku, Herbert S. Ormsbee, III
  • Patent number: 4705866
    Abstract: A process for the preparation of N-brominated or N-chlorinated phenylmaleimide by reacting maleic anhydride and a brominated or chlorinated aniline compound at temperatures of from about 100.degree. C. to about 210.degree. C. in the presence of tin containing catalyst compound and optionally an inert solvent.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: November 10, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Robert G. Gastinger
  • Patent number: 4703053
    Abstract: Novel benzothiophene and benzofuran derivatives having antiallergic activity are described as well as a method of manufacture, pharmaceutical compositions, and methods of use therefor. The disclosure describes the use of derivatives for prevention of the release of mediators including histamine and leukotrienes from basophils and mast cells, and prevent respiratory burst in neutrophils providing activity useful in cardiovascular disorders as well as in antiinflammatory, psoriasis, and antimigraine treatment.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: October 27, 1987
    Assignee: Warner-Lambert Company
    Inventors: David T. Connor, Wiaczeslaw A. Cetenko, Paul C. Unangst, Elizabeth A. Johnson
  • Patent number: 4701534
    Abstract: 2-Benzyl-7,7-dimethyl-6,8-dioxa-2-aza-spiro[3,5]nonane of the formula ##STR1## and a process for the preparation of that compound, which compound is useful as an intermediate in the preparation of 3-carboxy azetidine.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: October 20, 1987
    Assignee: Shell Oil Company
    Inventors: Ronald F. Mason, Gary Scholes, Jan W. van Reijendam
  • Patent number: 4698429
    Abstract: Substituted 8-hydroxyquinoline metal extractants having a cyclic hydrocarbon substituent at either the 5 and 7 or only the 7 position are described.
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: October 6, 1987
    Assignee: Henkel Corporation
    Inventors: Kent S. Kokko, Phillip L. Mattison
  • Patent number: 4696943
    Abstract: (S)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide, its preparation and pharmaceutical compositions containing the same. It can be prepared either by reacting (S)-alpha-ethyl-2-oxo-1-pyrrolidineacetic acid successively with an alkyl haloformate and with ammonia, or, by cyclizing an (S)-2-aminobutanamide of the formula X--CH.sub.2 CH.sub.2 --Y--NHCH(C.sub.2 H.sub.5)CONH.sub.2 wherein Y is a --CH.sub.2 -- radical when X represents a ZOOC-- radical and Y is a --CO-- radical when X represents a HalCH.sub.2 -- radical, Z being a C.sub.1 -C.sub.4 alkyl radical and Hal a halogen atom.This laevorotatory enantiomer has been found to have significantly higher protective activity against hypoxia and ischemia than the corresponding racemate.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: September 29, 1987
    Assignee: U C B Societe Anonyme
    Inventors: Jean Gobert, Jean-Pierre Geerts, Guy Bodson
  • Patent number: 4696942
    Abstract: (R)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide, its preparation and pharmaceutical compositions containing the same. It can be prepared either by reacting (R)-alpha-ethyl-2-oxo-1-pyrrolidineacetic acid successively with an alkyl haloformate and with ammonia, or, by cyclizing an (R)-2-amino-butanamide of the formula X--CH.sub.2 CH.sub.2 --Y--NHCH(C.sub.2 H.sub.5)CONH.sub.2 wherein Y is a --CH.sub.2 -- radical when X represents a ZOOC-- radical and Y is a --CO-- radical when X represents a HalCH.sub.2 -- radical, Z being a C.sub.1 -C.sub.4 alkyl radical and Hal a halogen atom. This dextrorotatory enantiomer has been found to have significantly higher mnemic activity and lower toxicity than the corresponding racemate.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: September 29, 1987
    Assignee: UCB Societe Anonyme
    Inventors: Jean Gobert, Corneliu Giurgea, Jean-Pierre Geerts, Guy Bodson
  • Patent number: 4686300
    Abstract: Polyfluoro .gamma.-ketoester compounds are obtained by reaction of ethylenic monoolefins, a metal or quaternary ammonium cyanide, and a fluoroester. These compounds, which have a general formula R.sub.F C(O)CFYCF.sub.2 CO.sub.2 R.sup.1, can be copolymerized directly with fluorinated ethylenic monoolefins, or further reacted to form vinyl ether and allyl ether derivatives which may also be copolymerized with ethylenic comonomers, forming solid, moldable copolymers with useful properties determined by the nature of pendant functional groups R.sub.F.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: August 11, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Carl G. Krespan
  • Patent number: 4686218
    Abstract: 6-Chloro-3-methyl-1H-2,3,4,5-tetrahydro-3-benzazepine-N-oxide is prepared by mild oxidation of the corresponding amine. It has been found to have prolonged .alpha..sub.2 -antagonistic or antihypertensive activity.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: August 11, 1987
    Assignee: SmithKline Beckman Corporation
    Inventors: Robert M. DeMarinis, Kenneth M. Straub
  • Patent number: 4684662
    Abstract: The invention relates to compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and represent alkyl or aryl or together form a C chain and R.sup.3 denotes alkyl or aryl, a process for their preparation and their use.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: August 4, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rainer Henning, Hansjorg Urbach
  • Patent number: 4683229
    Abstract: Selective alpha-adrenoceptor antagonists having the Formula: ##STR1## which are useful to produce alpha.sub.3 -selective adrenoceptor antagonism, pharmaceutical compositions including these antagonists, and methods of using these antagonists to selectively antagonize alpha.sub.3 adrenoceptor mediated activity in mammals.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: July 28, 1987
    Assignee: SmithKline Beckman Corporation
    Inventors: Robert M. Demarinis, Francis R. Pfeiffer
  • Patent number: 4681940
    Abstract: There are disclosed compounds of the formula ##STR1## wherein X is N or CR.sup.2Y is O, S, NR.sup.2, CHR.sup.2 or C(R.sup.2).sub.2 when n=0, or N or CR.sup.2 when n=1;p is 0-3;R.sup.1 is ##STR2## R.sup.2 is hydrogen or lower alkyl; R.sup.3 is hydrogen, lower alkyl, phenyl, thienyl, furyl, pyridyl, ##STR3## --C(R.sup.4).sub.3 or --(CH.sub.2).sub.p COOR.sup.2 ; R.sup.4 is halo;Z is O or S;and the pharmaceutically acceptable salts thereof, and their use in the treatment of luekotriene-mediated naso-bronchial obstructive airpassageway conditions, such as allergic rhinitis, allergic bronchial asthma and the like, in psoriasis, ulcerative colitis, rheumatoid arthritis as well as in other immediate hypersensitivity reactions.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: July 21, 1987
    Assignee: American Home Products Corporation
    Inventors: John H. Musser, Reinhold H. W. Bender
  • Patent number: 4680414
    Abstract: The invention relates to novel substituted-3-(2,3-dihydro-1H-inden-5-yl)-4-hydroxy-1H-pyrrole-2,5-diones, their analogs and their salts. These compounds are synthesized by methods selected from a number of synthetic routes depending on the particular structure, choice of intermediate or preferred reaction sequence. The compounds are useful for the treatment and prevention of injury to the brain and of edema due to head trauma, stroke (particularly ischemic), arrested breathing, cardiac arrest, Reye's syndrome, cerebral thrombosis, cerebral embolism, cerebral hemorrhage, cerebral tumors, encephalomyelitis, spinal cord injury, hydrocephalus, post-operative brain injury trauma, edema due to cerebral infections and various brain concussions.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: July 14, 1987
    Assignee: Merck & Co., Inc.
    Inventors: Edward J. Cragoe, Jr., Otto W. Woltersdorf, Jr.
  • Patent number: 4680299
    Abstract: Phenylquinolinecarboxylic acids and derivatives thereof, such as 2-(2'-fluoro-1,1'-biphenyl-4-yl)-6-fluoro-3-methyl-4-quinolinecarboxylic acid, or a sodium or potassium salt thereof, are useful as tumor inhibiting agents.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: July 14, 1987
    Assignee: E.I. Du Pont de Nemours and Company
    Inventor: David P. Hesson
  • Patent number: 4680404
    Abstract: Bicyclic fused benzenoid compounds of the formula ##STR1## and pharmaceutically acceptable cationic and acid addition salts thereof, where M is O, CH.sub.2 or NR.sub.6 ; R.sub.6 is hydrogen, formyl, carbobenzyloxy or certain carboalkoxyalkyl, alkanoyl, alkyl, aralkyl or aralkylcarbonyl groups;A' is:(1) A where one of A and B is hydrogen such that when A is hydrogen, B is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 1 or 2; when B is hydrogen, A is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 0 or 1, when taken together A and OR.sub.1 form a lactone or certain derivatives thereof;(2) A' is ##STR2## (3) A' is Q.sub.3 ; Q is CO.sub.2 R.sub.7, COR.sub.8, C(OH)R.sub.8 R.sub.9, CN, CONR.sub.12 R.sub.13, CH.sub.2 NR.sub.12 R.sub.13, CH.sub.2 NHCOR.sub.14, CH.sub.2 NHSO.sub.2 R.sub.17 or 5-tetrazoyl;Q.sub.3 is ##STR3## 5-tetrazolyl, CH.sub.2 CONHCOR.sub.7, COOH or certain ester, amide, carboximido or sulfonimido derivatives thereof, CONHOH, CONHCONH.sub.2, or COCH.sub.2 Q.sub.4 and Q.sub.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: July 14, 1987
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence S. Melvin, Jr.
  • Patent number: 4675335
    Abstract: Pharmaceutical compounds are described of the formula ##STR1## in which R.sup.1 is (i) R.sup.4 O(CH.sub.2 CH.sub.2 O).sub.n (CH.sub.2).sub.m --, where R.sup.4 is hydrogen or C.sub.1-5 alkyl, n is 0 or 1 to 5 and m is 1 to 7, or (ii) R.sup.5 --X-- where R.sup.5 is a polar group and X is a C.sub.6-20 alkylene or a C.sub.6-20 alkenylene radical containing from 1 to 3 double bonds, R.sup.2 is a group of the formula A--B-- where A is --COOH or ##STR2## where R.sup.6 is hydrogen or a protecting group, and B is C.sub.1-6 alkylene, and R.sup.3 is --COOH or ##STR3## where R.sup.7 is hydrogen or a protecting group; or a salt or ester thereof.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: June 23, 1987
    Assignee: Lilly Industries Limited
    Inventors: Stephen R. Baker, William J. Ross
  • Patent number: 4675333
    Abstract: There are described compounds of the formula ##STR1## in which R.sup.1 is hydrogen or C.sub.1-6 alkyl, R.sup.2 is hydrogen, C.sub.1-6 alkyl or C.sub.3-6 alkenyl, R.sup.3 is hydrogen or C.sub.1-6 alkyl, R.sup.4 is hydrogen or an N-protecting group, n is 2, 3, 4 or 5, and X is oxygen, sulphur or --CH.sub.2 --, provided that when X is --CH.sub.2 -- n is 0; and salts thereof. The compounds in which R.sup.4 is hydrogen have pharmaceutical activity.
    Type: Grant
    Filed: December 5, 1984
    Date of Patent: June 23, 1987
    Assignee: Lilly Industries Limited
    Inventors: David J. Steggles, John P. Verge
  • Patent number: 4675334
    Abstract: Compounds of formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently selected from H, OH, C.sub.1 -C.sub.4 alkyl, R.sub.4 --CO and halogen, where R.sub.4 is C.sub.1 -C.sub.4 alkyl; R.sub.5 and R.sub.6 are each independently selected from H, C.sub.1 -C.sub.4 alkyl and optionally-substituted phenyl; R.sub.7 is an alkylene group having from 1 to 4 carbon atoms, optionally containing a substituted or unsubstituted phenyl group; p is 0 or 1; and Z is a 1H-tetrazol-5-yl or a --CN group; and salts thereof, may be prepared by reacting a compound of formula. ##STR2## with a compound of formula ##STR3## wherein R.sub.1 -R.sub.7 are as defined in claim 1, in an organic solvent at a temperature in the range of 40.degree.-120.degree. C.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: June 23, 1987
    Assignee: Lilly Industries Limited
    Inventors: David J. Steggles, John P. Verge
  • Patent number: 4675339
    Abstract: The present invention relates to a spherical amino acid having an average particle size of about 1 mm or below and a process for the preparation thereof.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: June 23, 1987
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yoshimi Inoue, Mamoru Seki, Mamoru Katagiri, Hiroaki Nishiyama, Zenji Ogawa