Document Type and Number:
Japanese Patent JPH0312072
Kind Code:
B2
Abstract:
A novel stereocontrolled process is disclosed for converting 6-aminopenicillanic acid to an optically active azetidinone of the formula wherein R'' is a hydroxy-protecting group by use of a 6,6-dihaloanhydropenicillin or 6,6-bis(phenylselenyl)anhydropenicillin intermediate.
Inventors:
AREN MAATERU
JAN HOORU DARISU
JAN HOORU DARISU
Application Number:
JP7188085A
Publication Date:
February 19, 1991
Filing Date:
April 04, 1985
Export Citation:
Assignee:
BURISUTORU MAIYAAZU SUKUIBU CO
International Classes:
C07D499/04; C07D205/08; C07D499/86; C07D499/861; C07D499/87; C07D499/88; C07D499/897; C07F7/18
Next Patent: JPH0312073