Abstract: Compounds of the formula: ##STR1## wherein ##STR2## is a quaternized, monocyclic or bicyclic heteroaryl group, substituted by an acid moiety, and their preparation and use as antibiotics are disclosed.

Abstract: This invention relates to a method of treating bacterial infections with 4-oxo-4H-quinolizine-3-carboxylic acids and derivatives thereof. This invention further relates to pharmaceutical compositions that are useful in the treatment of bacterial infections.

Abstract: This invention relates to acetylenic cyclic carbonates that are useful in the treatment of fungal diseases and hypercholesterolemic conditions.

Abstract: This invention relates to acetylenic esters that are useful in the treatment of fungal diseases and hypercholesterolemic conditions.

Abstract: The compounds of the following structural formula (I) ##STR1## are 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) synthase inhibitors and useful as antihypercholesterolemic agents for the treatmet of disease in which the inhibition of cholesterol biosynthesis would be useful, such as arteriosclerosis, hyperlipidemia and familial hypercholesterolemia.

Abstract: Carbapenems having the formula: ##STR1## wherein ##STR2## is mono- or bicyclic quaternary heteroaryl, their preparation and antibiotic use are disclosed.

Abstract: Carbapenems having the formula: ##STR1## wherein: R.sup.1 is H;R.sup.4 and R.sup.5 are independently H, CH.sub.3 --, CH.sub.3 CH.sub.2 --, (CH.sub.3).sub.2 CH--, HOCH.sub.2 --, CH.sub.3 CH(OH)--, (CH.sub.3).sub.2 C(OH)--, FCH.sub.2, F.sub.2 CH--, F.sub.3 C--, CH.sub.3 CH(F)--, CH.sub.3 CF.sub.2 --, (CH.sub.3).sub.2 C(F)--; X is --S--, --SO--, --SO.sub.2 --, --O-- or --NH; L is a bridging group comprising substituted or unsubstituted C.sub.1 --C.sub.4 straight, C.sub.2 -C.sub.6 branched or C.sub.3 -C.sub.7 cycloalkyl groups wherein the substituents are selected from C.sub.1 -C.sub.6 alkyl, O--C.sub.1 -C.sub.6 alkyl, S--C.sub.1 -C.sub.6 alkyl, CF.sub.3, N(C.sub.1 -C.sub.6 alkyl).sub.2 ; Y is a carboxy-containing substituent; Het is internally alkylated heteroarylium, ##STR2## or externally alkylated heteroarylium, ##STR3## their preparation and antibiotic use are disclosed.

Abstract: Carbapenems and 1-methylcarbapenems having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently H, CH.sub.3, CH.sub.3 CH.sub.2 --, (CH.sub.3).sub.2 CH--, HOCH.sub.2, CH.sub.3 CH(OH)--, (CH.sub.3).sub.2 C(OH)--, FCH.sub.2 --, F.sub.2 CH, F.sub.3 C--, CH.sub.3 CH(F)--, CH.sub.3 CF.sub.2 --, or (CH.sub.3).sub.2 C(F)--;R.sup.3 is H-- or CH.sub.3 ;L isa bridging group comprising substituted or unsubstituted C.sub.1 -C.sub.4 straight, C.sub.2 -C.sub.6 branched or C.sub.3 -C.sub.7 cycloalkyl groups wherein the substituents are selected from C.sub.1 -C.sub.6 alkyl, O--C.sub.1 -C.sub.6 alkyl, S--C.sub.1 -C.sub.6 alkyl, CF.sub.3, N(C.sub.1 -C.sub.6 alkyl).sub.2 ;N.sup.+ is a quaternary, monocyclic or bicyclic substituted or unsubstituted, heteroaryl group containing (a) when monocyclic, up to 3 heteroatoms and up to 6 total ring atoms, or (b) when bicyclic, up to 5 heteroatoms and 9-10 ring atoms, which is optionally substituted with one or more groups;their preparation and antibiotic use are disclosed.

Abstract: 3-Phosphonate carbapenems of the Formula: wherein R.sup.1 is hydrogen, alkyl, amino, --NHCO-alkyl, hydroxy, alkoxy, halo, hydroxyalkyl, carboxyl or trifluoromethyl; R.sup.2 is alkyl, substituted alkyl, heterocyclic or substituted heterocyclic; R.sup.3 is hydrogen, alkyl or substituted alkyl; and M is a metal cation of H.sup.+ are disclosed. The compounds are useful as antibiotics.

Abstract: Disclosed is the antibiotic 6-(1-hydroxyethyl)-2-substituted-thio-3-tetrazolyl-1-carbadethiapen-2-em and its pharmaceutically acceptable salts (I): ##STR1## wherein Z is C.sub.1 -C.sub.3 alkylamino, C.sub.1 -C.sub.3 alkylguanidino, C.sub.1 -C.sub.3 alkylamidino, or heterocycloalkyl and, M=H, a synthetically useful cation, or pharmaceutically acceptable cation. Such compounds as well as their pharmaceutically acceptable salts are useful as antibiotics. Also disclosed are processes for the preparation of such compounds; novel intermediates; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Abstract: Disclosed are substituted 1-azabicyclo [3.2.0]-hept-6-en-2-one-7-carboxylic acids (I) and their pharmaceutically acceptable salts and esters which are useful as antibiotics. ##STR1## wherein R is hydrogen, and, inter alia, unsubstituted and substituted alkyl, aryl, aralkyl; R.sup.8 is, inter alia, unsubstituted and substituted alkyl, alkenyl, aryl, and aralkyl. Also disclosed are processes for the preparation of such compounds; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Abstract: Disclosed are 3-amido-6-substituted thio-1-azabicyclo[3.2.0]hept-6-en-2-one-7-carboxylic acids (I) and their pharmaceutically acceptable salts and esters which are useful as antibiotics ##STR1## wherein: R is NH.sub.2, R.sup.1 NH, R.sup.1 is acyl; and R.sup.8 is inter alia, unsubstituted and substituted alkyl, alkenyl, aryl, and aralkyl.Also disclosed are processes for the preparation of such compounds; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Abstract: Disclosed are 6-amidocyclonocardicins (I) and their pharmaceutically acceptable salts and esters which are useful as antibiotics ##STR1## wherein: R is NH.sub.2, R.sup.1 NH, R.sup.1 is acyl. Also disclosed are processes for the preparation of such compounds; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Abstract: Disclosed are 6-(1-hydroxyethyl)cyclonocardicins (I) and their pharmaceutically acceptable salts and esters which are useful as antibiotics. ##STR1## Also disclosed are processes for the preparation of such compounds; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.