Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1976-05-20
1977-09-13
Rizzo, Nicholas S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
424246, 544 28, C07D50120
Patent
active
040481611
ABSTRACT:
Cephalosporin antibiotics of the formula ##STR1## in which, for example, R is phenyl, hydroxyphenyl, halophenyl, thienyl, or furyl; R.sub.1 is hydrogen, carbamoyloxy, acetoxy, a lower alkyl substituted 1H-tetrazol-5-ylthio or 1,3,4-thiadiazol-5-ylthio group; and R.sub.2 is hydrogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, chloro, bromo, or fluoro; are highly active broad spectrum antibiotics especially useful in the treatment of infections attributable to the gram-negative microorganisms.
REFERENCES:
patent: 3867380 (1975-02-01), Dunn et al.
Lunn William H. W.
Mason Edward V.
Eli Lilly and Company
Martens, Jr. William C.
Rizzo Nicholas S.
Smith Everet F.
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