Stereocontrolled acetoxyazetidinone process

Details Stereocontrolled acetoxyazetidinone process Stereocontrolled acetoxyazetidinone process

C - Chemistry, Metallurgy

07

D

260/111

C07D 499/00 (2006.01) C07D 205/08 (2006.01) C07D 499/88 (2006.01) C07F 7/10 (2006.01) C07F 7/18 (2006.01)

Patent

CA 1261318

ABSTRACT A novel stereocontrolled process is disclosed for converting 6-aminopenicillanic acid to an optically active azetidinone of the formula Image wherein R" is a hydroxy-protecting group by use of a 6,6-dihalo- anhydropenicillin or 6,6-bis(phenylselenyl)anhydropenicillin intermediate.

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