Penam derivatives

Details Penam derivatives Penam derivatives

1987-10-21

1989-04-11

Rizzo, Nicholas S.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

514196, 540313, 540314, C07D49976, A61K 3143

Patent

active

048207012

ABSTRACT:
Antibacterial agents have the formula (I) or are pharmaceutically acceptable salts or in vivo hydrolysable esters thereof: ##STR1## wherein R.sup.3 is phenyl, substituted phenyl, cyclohexenyl, cyclohexadienyl or an optionally substituted 5- or 6-membered heterocyclic ring containing up to three hetero atoms selected from oxygen, sulphur or nitrogen, R.sup.4 is hydrogen or formamido, R.sup.5 is hydrogen, C.sub.1-6 alkyl, substituted alkyl, aryl or aralkyl, R.sup.6 and R.sup.7 are the same or different and represent hydrogen, C.sub.1-6 alkyl, substituted alkyl, halogen, amino, phenyl, substituted phenyl, hydroxyl or C.sub.1-6 alkoxy or R.sup.6 and R.sup.7 form the residue of an optionally substituted 5- or 6-membered carbocyclic ring or a 5- or 6- membered heterocyclic ring containing up to three hetero atoms selected from oxygen, sulphr or nitrogen, and X represents ##STR2## or tautomers thereof wherein R.sup.8 and R.sup.9 are the same or different and each represents hydroxy, or protected hydroxy.

REFERENCES:
patent: 4183850 (1980-01-01), Darby et al.
patent: 4539149 (1985-09-01), Milner
patent: 4609652 (1986-09-01), Milner

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