Cephalosporin compounds

Details Cephalosporin compounds Cephalosporin compounds

1977-07-12

1982-05-11

Rizzo, Nicholas S.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 27, 424246, 544 21, C07D50136

Patent

active

043294545

ABSTRACT:
Compounds of the formula ##STR1## in which R is hydrogen or an acyl group, R.sub.1 is hydrogen or lower alkyl, and R.sub.2 is hydrogen, an alkali metal cation, or a readily removable ester forming group, are active antibiotics or intermediates thereto.

REFERENCES:
patent: 4018921 (1977-04-01), Gleason
patent: 4039535 (1977-08-01), Cooper
patent: 4091211 (1978-05-01), Montavon et al.

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