Thiazolylacetic acid compounds

Details Thiazolylacetic acid compounds Thiazolylacetic acid compounds

C - Chemistry, Metallurgy

07

D

260/308.5

C07D 277/32 (2006.01) C07D 277/20 (2006.01) C07D 277/34 (2006.01) C07D 277/40 (2006.01) C07D 277/46 (2006.01) C07D 277/48 (2006.01) C07D 417/12 (2006.01)

Patent

CA 1137492

A B S T R A C T The present invention relates to novel thiazolylacetic acid compounds of the formula: Image [V] wherein R1 represents amino or hydroxyl group which may be protected, and B represents Image - or Image where1n R2 represents amino or hydroxyl group which may be protected and R5 represents hydroxyl group which may be protected, or a salt, an ester or a reactive derivative thereof, and to processes for preparing these compounds. The novel thiazolylacetic acid compounds (V) are useful intermediary compounds for preparation of cephem compounds.

315026

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