Cephem derivative

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

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544 21, 544 22, 544 23, 544 25, 544 28, 544133, 548194, C07D50156

Patent

active

042787939

ABSTRACT:
Cephem derivatives of the general formula ##STR1## in which the R.sub.2 O group is in the syn-position, a process for their manufacture and pharmaceutical formulations which are active against bacterial infections and contain these compounds.

REFERENCES:
patent: 4098888 (1978-07-01), Ochiai et al.
patent: 4166115 (1979-08-01), Takaya et al.
patent: 4202893 (1980-05-01), Heymes et al.

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