3-HETEROTHIOMETHYL UREIDO CEPHALOSPORINS

Details 3-HETEROTHIOMETHYL UREIDO CEPHALOSPORINS 3-HETEROTHIOMETHYL UREIDO CEPHALOSPORINS

1977-02-02

1978-11-28

Daus, Donald G.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 26, 544 28, 544 30, 544 4, 424246, 424245, C07D50156, C07D50154, A61K 31545

Patent

active

041277163

ABSTRACT:
L-Isomer compounds of the formula ##STR1## wherein R.sub.1 is phenyl, thienyl or furyl; R.sub.4 represents certain heterocyclic groups; R.sub.3 is hydrogen, lower alkyl, phenyl-lower alkyl, substituted phenyl-lower alkyl, diphenyl-lower alkyl, tri(lower alkyl)stannyl, tri(lower alkyl)silyl, a salt forming ion, or the group ##STR2## wherein R is lower alkyl, phenyl, phenyl-lower alkyl, or substituted phenyl and phenyl-lower alkyl are disclosed. These compounds are useful as antibacterial agents.

REFERENCES:
patent: 3641021 (1972-02-01), Ryan, Jr.
patent: 3757015 (1973-09-01), Crast, Jr.
patent: 3759904 (1973-09-01), Crast, Jr.
patent: 3796801 (1974-03-01), Guarini et al.
patent: 3813388 (1974-05-01), Crast, Jr.
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patent: 3860591 (1975-01-01), Breuer
patent: 3867380 (1975-02-01), Dunn et al.
patent: 3926985 (1975-12-01), Breuer
patent: 3996217 (1976-12-01), Breuer et al.
patent: 4088815 (1978-05-01), Brewer et al.
patent: 4088816 (1978-05-01), Treuner et al.

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