Intermediates for cephalosporanic acid derivatives and...

Details Intermediates for cephalosporanic acid derivatives and... Intermediates for cephalosporanic acid derivatives and...

C - Chemistry, Metallurgy

07

D

260/251, 260/295

C07D 213/55 (2006.01) C07D 239/24 (2006.01)

Patent

CA 1146553

ABSTRACT OF THE DISCLOSURE Intermediates of the formula: Image wherein R1 is hydrogen, amino or a protected amino group, and R1 are each hydrogen, halogen, lower alkoxy or aryl- thio, R14 is carboxy or a protected carboxy group, X is lower alkylene or a group of the formula: Image in which R6 is hydrogen or an organic residue which may have suitable substituent(s), and Z is N or CH, or salts thereof, are useful in the preparation of novel cephalosporanic acid derivatives, which in turn have antibacterial activity.

391232

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