3-substituted-7-[5-substitute d-2-thiazolyl)amino]-8-oxo-5-thia-

Details 3-substituted-7-[5-substitute d-2-thiazolyl)amino]-8-oxo-5-thia- 3-substituted-7-[5-substitute d-2-thiazolyl)amino]-8-oxo-5-thia-

1986-10-20

1988-07-26

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540227, 540229, C07D50118, A61K 31545

Patent

active

047601400

ABSTRACT:
Compounds of the formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl(C.sub.1 -C.sub.3), vinyl, acetyloxy or ##STR2## wherein R.sub.3 is hydrogen or alkyl(C.sub.1 -C.sub.6); R.sub.2 is hydrogen or diphenylmethyl and A is R.sub.4 --C, where R.sub.4 is acetyl or benzoyl, are useful as intermediates in the preparation of biologically active cephalosporin derivatives.

REFERENCES:
patent: 4463173 (1984-07-01), Jung
patent: 4665065 (1987-05-01), Miyake et al.

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