Abstract: A compound of structural Formula I: ##STR1## or pharmaceutically acceptable salts thereof wherein: each n is independently 1 to 3; Y is chosen from a-n as defined herein; wherein each occurrence of said C.sub.1-6 alkyl may be substituted with one or more F, Cl, Br, I, OR.sup.1, CO.sub.2 R.sup.1, CN, SR.sup.1, or R.sup.1 (where R.sup.1 is a hydrogen or C.sub.1-4 alkyl); X and Z are independently C.sub.1-6 alkyl, C.sub.3-12 cycloalkyl or hydrogen, or X and Z form a C.sub.0-3 bridging group, preferably X and Z are hydrogen; U, V and W are independently C.sub.1-6 alkyl, F, Cl, Br, hydrogen or a C.sub.1-6 alkyl substituted with one or more of F, Cl, Br or I, preferably U and V are F and W is hydrogen; R is hydrogen, C.sub.1-12 alkyl, C.sub.3-12 cycloalkyl, C.sub.1-6 alkoxy, C.sub.1-6 alkyl substituted with one or more F, Cl, Br, I or OH; and q is 0 to 4 inclusive.

Abstract: A novel class of phenyloxazolidinone antibacterial agents which have, as their salient structural feature, an appended substituted tropone moiety, are described. Intermediates and processes for the preparation of these antibiotics are also disclosed. These compounds are useful antibacterial agents to eradicate or control susceptible organisms. ##STR1## wherein R.sup.4 is oxygen substituted heptatrienyl and R.sup.1, R.sup.2, and R.sup.3 are as defined herein.

Abstract: A quinolone compound of Formula (I) ##STR1## as defined herein having antibacteria properties, pharmaceutical compositions containing the quinoline compound and method for treating bacterial infections in animals including humans.

Abstract: A quinolone compound of Formula (I) ##STR1## as defined herein having antibacteria properties, pharmaceutical compositions containing the quinoline compound and method for treating bacterial infections in animals including humans.

Abstract: This invention presents novel 2-azetidinone compounds of the formula ##STR1## wherein R.sub.10 and R.sub.15 are the same or different and are (a) hydrogen, (b) (C.sub.1 -C.sub.12) alkyl, (c) (C.sub.2 -C.sub.8) alkenyl, (d) (C.sub.2 -C.sub.8) alkynyl, (e) --CH.sub.2 OCOCH.sub.2 NHR.sub.4, (f) --CH.sub.2 OCO.sub.2 R.sub.30, (g) --CH.sub.2 F, or (h) --CHF.sub.2 ; wherein R.sub.4 is hydrogen or --COH; wherein R.sub.30 is (C.sub.1 -C.sub.8)alkyl; wherein R.sub.20 is an acyl group derived from a carboxylic acid; wherein A is oxygen or sulfur; and wherein R.sub.70 is (a) hydrogen, (b) (C.sub.1 -C.sub.8) alkyl, (c) phenyl, (d) --OH, or (e) --SH; where each member of b or c may optionally be substituted by 1 to 2 substituents selected from the group consisting of halogen, hydroxy, and amino.These compounds are useful as antibacterial agents to eradicate or control susceptible microbes. Intermediates and processes for making these compounds are also disclosed.

Abstract: This invention presents novel 2-azetidinone compounds which are useful as antibacterial agents to eradicate or control susceptible microbes of the formula ##STR1## wherein R.sub.401 and R.sub.402 are the same or different and are (a) hydrogen, (b) (C.sub.1 -C.sub.12) alkyl (c) (C.sub.2 -C.sub.8) alkenyl, (d) (C.sub.2 -C.sub.8) alkynyl, (e) (C.sub.3 -C.sub.10) cycloalkyl, (f) phenyl optionally substituted with from one to 3 substituents selected from the group consisting of halogen, hydroxy, amino, nitro, (C.sub.1 -C.sub.4) alkyl, and (C.sub.1 -C.sub.4) alkoxy, (g) benzyl optionally substituted with from one to 3 substituents selected from the group consisting of halogen, hydroxy, amino, nitro, (C.sub.1 -C.sub.4) alkyl, and (C.sub.1 -C.sub.4) alkoxy, (h) --CH.sub.2 --O--CO--CH.sub.2 --NHR.sub.420, (i) --CH.sub.2 --O--CO.sub.2 --R.sub.430, (j) --CH.sub.2 F, or (k) --CHF.sub.2 ; wherein R.sub.420 is (a) hydrogen, (b) --COH, or (c) --CO--O--C(CH.sub.3).sub.3 ; wherein R.sub.430 is (C.sub.1 -C.sub.8) alkyl, --(CH.