2-Lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives

Details 2-Lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives 2-Lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives

1978-06-15

1981-12-29

Rizzo, Nicholas S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544022, 424246, 544 17, C07D50120

Patent

active

043083803

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: 3883517 (1975-05-01), Heusler et al.
patent: 4152433 (1979-05-01), Kamiya et al.

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