3-Heterothio derivatives of [(alkoxycarbonyl)oxyacetyl]cephalosp

Details 3-Heterothio derivatives of [(alkoxycarbonyl)oxyacetyl]cephalosp 3-Heterothio derivatives of [(alkoxycarbonyl)oxyacetyl]cephalosp

1974-05-10

1976-06-01

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

424246, C07D50120

Patent

active

039608506

ABSTRACT:
3-Heterothio derivatives of [(alkoxycarbonyl)oxyacetyl]cephalosporins which have the formula ##SPC1## tri(lower
Wherein R.sub.1 is hydrogen, lower alkyl, phenyl, phenyl-lower alkyl or certain heterocyclic groups; R.sub.2 is lower alkyl; R.sub.3 is hydrogen, lower alkyl, tri(lower alkyl)silyl, tri(lowe alkyl)stannyl, a salt forming ion, or ##EQU1## R is lower alkyl, phenyl, or phenyl-lower alkyl; R.sub.4 is a five-membered nitrogen and sulfur or oxygen-containing ring system; are useful as antibacterial agents.

REFERENCES:
patent: 3812116 (1974-05-01), Takano et al.
patent: 3839329 (1974-10-01), Breuer et al.
patent: 3846418 (1974-11-01), Treuner et al.

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