Process for preparation of 2-lower alkyl-2 or 3-cephem-4-carboxy

Details Process for preparation of 2-lower alkyl-2 or 3-cephem-4-carboxy Process for preparation of 2-lower alkyl-2 or 3-cephem-4-carboxy

1980-12-05

1983-05-24

Rizzo, Nicholas S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 22, 544 21, 424246, 2602391, C07D50104, A61K 31545

Patent

active

043851762

ABSTRACT:
A compound of the formula ##STR1## wherein R.sup.1 is amino or substituted amino, R.sup.2 is carboxy or protected carboxy, R.sup.3 is lower alkyl and X is --S-- or ##STR2## or a pharmaceutically acceptable salt thereof is effective against various microorganisms.

REFERENCES:
patent: 3719672 (1973-03-01), Heusler et al.
patent: 3883517 (1975-05-01), Heusler et al.
patent: 4264597 (1981-04-01), Hashimoto et al.
patent: 4269977 (1981-05-01), Petz et al.
patent: 4308380 (1981-12-01), Kamiya et al.

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