Patents Examined by Joseph Paul Brush
  • Novel pyrrolidine-2-(1,3-dicarbonyl) derivatives, a process for their preparation, agents containing them, and their use
    Patent number: 4912128
    Abstract: Novel pyrrolidine-2-(1,3-dicarbonyl) derivatives, a process for their preparation, agents containing them, and their useThe invention relates to pyrrolidine derivatives of the general formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meaning specified in the description, X denotes oxygen, imino or alkylimino,m is 0-5, n is 0-2 and s is 0 or 1, a process for their preparation, agents containing them, and their use.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: March 27, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rainer Henning, Franz Hock, Hansjorg Urbach