Patents Examined by Patrica L. Morris
  • Patent number: 6395683
    Abstract: The invention relates to new heterocyclylbenzonitriles of the general formula (I) in which R1, R2, R3 and Het have the meanings given in the description, new processes and new intermediate products for their preparation and their use as herbicides.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: May 28, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Mark-Wilhelm Drewes, Roland Andree, Kurt Findeisen, Wilhelm Haas, Andreas Lender, Karl-Heinz Linker, Otto Schallner, Markus Dollinger, Hans-Joachim Santel
  • Patent number: 5808084
    Abstract: Benzylidene intermediates, useful in the preparation of dihydropyridines such as nifedipine and amlodipine, are formed by reaction of a ketocarboxylic adid ester with an aldehyde in the presence of a catalytic amount of dimethylamine acetate.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: September 15, 1998
    Assignee: Pfizer, Inc.
    Inventor: Rafael Arguelles
  • Patent number: 5734049
    Abstract: The present invention relates to novel processes for preparing intermediates of the formula I ##STR1## and to novel intermediates thereof which are useful in the preparation of inhibitors of enkephalinase and angiotensin converting enzyme.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: March 31, 1998
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Gary A. Flynn, Michael J. Genin, Douglas W. Beight
  • Patent number: 4921529
    Abstract: New 2-hydroxyethyl-azole derivatives of the formula ##STR1## in which R represents optionally substituted phenyl,X represents hydrogen or halogen andY represents hydrogen or halogen, and acid addition salts and metal salt complexes thereof,as well as the use of the novel compounds as fungicides and plant growth regulants.New intermediates for the synthesis of the novel 2-hydroxyethyl-azole derivatives.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: May 1, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Lantzsch, Brandes Wilhelm, Gerd Hansller, Paul Reinecke, Klaus Lurssen
  • Patent number: 4820334
    Abstract: A 1,2,4-triazole-3-carboxamide compound represented by the formula (I): ##STR1## wherein R represents a straight-chain or branched-chain saturated (C.sub.2 -C.sub.10)alkyl group which is unsubstituted or substituted by fluorine atom(s); a cyclic saturated (C.sub.3 -C.sub.10)alkyl group which is unsubstituted or substituted by fluorine atom(s); a straight-chain, branched-chain or cyclic unsaturated (C.sub.3 -C.sub.10)-alkyl group which is unsubstituted or substituted by fluorine atom(s); a group represented by the formula (II): ##STR2## wherein R.sup.1 represents a halogen atom, a (C.sub.1 -C.sub.3)alkyl group, a (C.sub.1 -C.sub.3)alkoxy group or a fluorine-substituted (C.sub.1 -C.sub.3)alkyl group, m is an integer of from 0 to 5 and n is 0 or 1; a straight-chain or branched-chain saturated (C.sub.1 -C.sub.8)alkoxy(C.sub.2 14 C.sub.10)alkyl group; a straight-chain or branched-chain unsaturated (C.sub.1 -C.sub.8)alkoxy(C.sub.2 -C.sub.10)alkyl group; a phenoxy(C.sub.2 -C.sub.6)alkyl group; an aralkoxy(C.sub.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: April 11, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takafumi Shida, Shiro Yamazaki, Hiroyasu Shinkawa