Patents Examined by E. B. Magrab
  • Patent number: 4880802
    Abstract: For treatment of disorders of the central nervous system, the cardiovascular system or the intestinal tract, the new substituted basic 2-aminotetralins of the formula ##STR1## in which R.sup.1 represents hydrogen or alkyl,R.sup.2 represents hydrogen, alkyl or acyl, andR.sup.3 represents quinuclidine or a group of the formula --(CH.sub.2).sub.a --R.sup.4, --CH.sub.2 --CH.dbd.CH--(CH.sub.2).sub.b --R.sup.4, --CH.sub.2 --C.tbd.(CH.sub.2).sub.b --R.sup.4, ##STR2## wherein a denotes a number from 1 to 10,b denotes a number 0, 1, 2, 3 or 4,d denotes a number 2 or 3, andX denotes oxygen, sulphur, or NR.sup.5,and their salts.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Schohe, Thomas Glaser, Jorg Traber, George S. Allen
  • Patent number: 4876270
    Abstract: Novel substituted .alpha.,.alpha.-diphenylethylene derivatives of formula I ##STR1## in which R.sub.1 and R.sub.4 independently of one another each represents hydrogen, hydroxy, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.3 -alkoxy substituted by from 1 to 7 halogen atoms, alkoxyalkoxy having a total of from 2 to 6 carbon atoms, C.sub.3 -C.sub.5 -alkenyloxy or C.sub.3 -C.sub.5 -alkynyloxy;R.sub.2 and R.sub.3 independently of one another each represents hydrogen, halogen, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.5 -alkoxy or nitro; orR.sub.1 and R.sub.2 together represent a radical --O--CH.sub.2 --O-- or --O--CH.sub.2 --CH.sub.2 --O--;R.sub.5 and R.sub.6 independently of one another each represents hydrogen, halogen or methyl;R.sub.7 and R.sub.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: October 24, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Hans-Rudolf Waespe
  • Patent number: 4876271
    Abstract: Novel substituted thieno[3,2-b]thiophene-2-sulfonamides are prepared by novel synthetic processes. These compounds are useful for the treatment of elevated intraocular pressure in compositions including ophthalmic drops and inserts.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: October 24, 1989
    Assignee: Merck & Co., Inc.
    Inventors: George D. Hartman, John D. Prugh
  • Patent number: 4874876
    Abstract: The present invention provides a process for the preparation of 2-(2-thienyl)-ethylamine and derivatives thereof having the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or taken together form a phenyl ring.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: October 17, 1989
    Assignee: Occidental Chemical Corporation
    Inventors: Neil J. O'Reilly, Henry C. Lin
  • Patent number: 4873241
    Abstract: 2-Amino-N-(2-phenylindan-2-yl)acetamides of the following formula are provided ##STR1## wherein, a=0 to 3,R.sub.1, R.sub.2 and R.sub.3 are independently selected from hydrogen and methyl,R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.5 is selected from hydrogen, C.sub.1 -C.sub.4 alkyl, cyclopropyl and (aminomethyl)carbonyl, orR.sub.4 and R.sub.5 taken together with the nitrogen atom to which they are attached from a heterocyclic ring selected from pyrrolidinyl, piperidinyl and morpholinyl, orR.sub.3 and R.sub.4 taken together with the carbon atom and nitrogen atom to which they are respectively attached form a heterocyclic ring selected from pyrrolidinyl and piperidinyl, andR.sub.6 is selected from hydrogen, halogen, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, C.sub.1 -C.sub.4 alkyl and combinations thereof.The compounds have antiepileptic or antihypoxia activity.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: October 10, 1989
    Assignee: Fisons Corporation
    Inventors: James J. Napier, Ronald C. Griffith
  • Patent number: 4871855
    Abstract: An osmium-catalyzed method of addition to an olefin. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, water, and aamine oxide and an osmium-containing compound are combined. In the method of asymmetric oxyamination of the present invention, an olefin, a chiral ligand, an organic solvent, water, an amine derivative and an osmium-containing compound are combined. In the method of asymmetric diamination of the present invention, an olefin, a chiral ligand, an organic solvent, a metallo-chloramine derivative or an amine derivative and an osmium-containing compound are combined. In one embodiment, an olefin, a chiral ligand which is a dihydroquinidine derivative or a dihydroquinine derivative, acetone, water, N-methyl morpholine N-oxide and osmium tetroxide are combined to effect asymmetric dihydroxylation of the olefin.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: October 3, 1989
    Assignee: Massachusetts Institute of Technology
    Inventors: Istvan E. Marko, K. Barry Sharpless
  • Patent number: 4870098
    Abstract: This invention encompasses compounds of Formula I ##STR1## and the pharmaceutically acceptable salts and geometrical and optical isomers thereof wherein:Alk is alkylene or hydroxyalkylene containing 1-6 carbon atoms;Ar is 5,6,7,8-tetrahydro-1-naphthalenyl or phenyl optionally substituted with one or more substituents selected from lower alkyl containing 1 to 6 carbon atoms, hydroxy, lower alkoxy containing 1 to 6 carbon atoms, or lower alkanoyl containing 1 to 6 carbon atoms;R is hydrogen and lower alkyl containing 1 to 6 carbon atoms;X, Y, and Z are each independently O or S with S optionally oxidized to S.dbd.O;m is an integer from 0 to 3;n is an integer from 0 to 5.The compounds are useful as anti-allergy agents and anti-inflammatory agents.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: September 26, 1989
    Assignee: G. D. Searle & Co.
    Inventors: Michael A. Stealey, Richard M. Weier