Cephalosporin compounds and processes for the preparation thereo

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent

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424246, 544 25, 544 28, C07D50156

Patent

active

042425107

ABSTRACT:
Cephalosporin compounds of the formula (I): ##STR1## wherein R.sup.1 is a group of the formula: ##STR2## in which X is sulfur, oxygen or substituted or unsubstituted imino,

REFERENCES:
patent: 4095021 (1978-06-01), Bradshaw et al.
patent: 4098888 (1978-07-01), Ochiai et al.

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