Thiazole derivatives

Details Thiazole derivatives Thiazole derivatives

1984-01-06

1987-09-22

Lesmes, George F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548190, 548194, 548202, C07D27776, C07D27740

Patent

active

046956395

ABSTRACT:
A novel aminothiazoleacetic acid derivative which is an advantageous synthetic intermediate for .beta.-lactam antibiotics, and its production method and use. Starting with diketene, the production method comprises the following squence of steps. ##STR1## (In the above formulas, R is lower alkyl or phenyl; R.sub.1 and R.sub.2 each are hydrogen or lower alkyl; X and X' each are halogen; W is S or SO.sub.2 ; and W' is OH or ##STR2##

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