3-aryl-pyrrolidine-2,4-diones

US5142065A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reiner Fischer · Monheim, DE
• Hermann Hagemann · Leverkusen, DE
• Andreas Krebs · Odenthal, DE
• Albrecht Marhold · Leverkusen, DE
• Klaus Lurssen · Wittlich, DE
• Robert R. Schmidt · Cologne, DE
• Hans-Joachim Santel · Leverkusen, DE
• Benedikt Becker · Mettmann, DE
• Klaus Schaller · Wuppertal, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: Jun 5, 1991
• Grant date: Aug 25, 1992
• Expiry date: Jun 5, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An acylamino ester of the formula ##STR1## wherein X is C.sub.1-6 alkyl, or halogen, PA0 Y is hydrogen, C.sub.1-6 alkyl, halogen, or C.sub.1-3 halogenalkyl, PA0 Z is C.sub.1-6 alkyl, or halogen, PA0 n is 0 to 3, PA0 provided that when n is O,Y is not hydrogen, and PA0 R.sup.3 is C.sub.1-6 alkyl.