Process for preparation of carbostyril derivatives

Abstract

Abstract PURPOSE: Carbostyril derivatives of formula I(where R 1 and R 2 are H or lower alkyl; R 3 is H, lower alkyl or lower alkanol; R 4 and R 5 are H, 1W5C alkyl, aralkyl, clcoloalkyl, or R 4 and R 5 together may form a heterocyclic ring with the adjacent N or with N or O; the carbon-carbon linkage at the 3 and 4 positions is a single or double bond). COPYRIGHT: (C)1977,JPO&Japio

Inventors

• 👤 Shiro Yoshizaki
• 👤 Shigeharu Tamada
• 👤 Kaoru Tanimura
• 👤 Kazuyuki Nakagawa

Bibliographic Details