Patents Represented by Law Firm Sprugn, Horn, Kramer & Woods
  • Amino-esters of dihydropyridines useful for improving circulation in patients
    Patent number: 5063239
    Abstract: Circulation active compounds of the formula ##STR1## in which R.sup.1 is phenyl or heterocyclyl substituted by nitro, trifluoromethyl or other radicals,R.sup.2 is optionally substituted alkyl or other radicalR.sup.3 and R.sup.5 are hydrogen, methyl or other radicals,R.sup.4 is hydrogen or optionally substituted alkyl,X is from 2 to 15, andR.sup.6 is ##STR2## and physiologically acceptable salts thereof.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: November 5, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eckhard Schwenner, Hartmut Stegelmeier, Stanislav Kazda, Andreas Knorr