Title:
CURAVARIC ACID DERIVATIVE * PRODUCTION THEREOF AND COMPOSITION
Document Type and Number:
Japanese Patent JPS5455593
Kind Code:
A
Abstract:
This invention provides the compounds of the formula (I): and salts and esters thereof, wherein R1 is a hydrogen atom or a lower alkyl, aryl or aralkyl group, R2 and R3 are independently hydrogen, aryl, aralkyl, lower alkyl or substituted lower alkyl, or R3 is joined to R1 to form a 4-, 5-, or 6- membered ring or is joined to R2 to form a 5- or 6- membered ring. The compounds have beta -lactamase inhibitory and antibacterial properties. The invention also provides a process for their preparation, and pharmaceutical compositions containing them.
Inventors:
TOOMASU TOREFUOO HAWAASU
ERITSUKU HANTO
ERITSUKU HANTO
Application Number:
JP11646478A
Publication Date:
May 02, 1979
Filing Date:
September 20, 1978
Export Citation:
Assignee:
BEECHAM GROUP LTD
International Classes:
A61K31/42; A61P31/04; C07C271/22; C07D205/085; C07D503/00; (IPC1-7): A61K31/42; C07D498/04