Patents Assigned to Cassella Aktiengellschaft
  • Substituted 3-aminosydnone imines
    Patent number: 5179206
    Abstract: Substituted 3-aminosydnone imines of the formula I ##STR1## and their pharmacologically acceptable acid addition salts, in which R.sup.1 denotes e.g. hydrogen;R.sup.2 denotes e.g. an alkyl radical;at least two of the radicals R.sup.3, R.sup.4, R.sup.5 and R.sup.6 denote alkyl radicals and the others denote hydrogen, are prepared by cyclization of a compound of the formula II ##STR2## and, if appropriate, subsequent acylation, and have useful pharmacological properties.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: January 12, 1993
    Assignee: Cassella Aktiengellschaft
    Inventors: Eckard Kujath, Christian Baumgartner, Karl Schonafinger, Rudi Beyerle, Melitta Just, Helmut Bohn, Jorg Ostrowski
  • Substituted 1,2,3,4-oxatriazolium-5-olates, a process for their preparation and their use
    Patent number: 5091398
    Abstract: The 1,2,3,4-oxatriazolium-5-olates of the formula I ##STR1## in which R.sup.1 denotes, for example, (C.sub.2 to C.sub.4)alkyl,R.sup.2 and R.sup.3 denotes (C.sub.1 to C.sub.4)alkyl have useful pharmacological properties.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: February 25, 1992
    Assignee: Cassella Aktiengellschaft
    Inventors: Karl Schonafinger, Helmut Bohn, Rudi Beyerle, Melitta Just