Cephalosporin compounds and preparation thereof

Details Cephalosporin compounds and preparation thereof Cephalosporin compounds and preparation thereof

C - Chemistry, Metallurgy

07

D

260/302, 260/278

C07D 417/12 (2006.01)

Patent

CA 1246079

- 1 - Abstract The present invention is directed to novel thiazolyl- acetic acid derivatives of the formula: (II) Image wherein R1 is hydrogen or lower alkyl, R4 is a protecting group and n is an integer of 2 or 3, and processes for their preparation. The compounds of formula II are useful as intermediates in the preparation of cephalosporins.

531138

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