Method for manufacture of cephalosporin and intermediates thereo

Details Method for manufacture of cephalosporin and intermediates thereo Method for manufacture of cephalosporin and intermediates thereo

1997-12-19

1999-01-05

Richter, Johann

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548253, C01D277587

Patent

active

058565027

ABSTRACT:
This invention relates to reactive derivatives of 2-(2-aminothiazol-4-yl)-2-methoxyimino acetic acid and 1H-tetrazol-1-acetic acid of the following general formula I, ##STR1## wherein ##STR2## as well as to use thereof in the manufacture of cephalosporin antibiotics such as cefotaxime, ceftriaxone and cefazolin.

REFERENCES:
patent: 4152432 (1979-05-01), Heymes et al.
patent: 5037988 (1991-08-01), Meseguer et al.
patent: 5317099 (1994-05-01), Lee et al.
patent: 5716626 (1998-02-01), Sakurai et al.

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