Abstract: Compounds of formula I: as well as pharmaceutically acceptable salts therefor and compositions useful as carbapenem antibacterial agents are disclosed.

Abstract: Compounds of formula I are disclosed. as well as pharmaceutically acceptable salts thereof.

Abstract: Compounds of formula I: as well as pharmaceutically acceptable salts thereof useful as carbapenam antibacterial agents are disclosed wherein X is CR2R2, NR2, or O.

Abstract: The present invention relates to carbapenem antibacterial agents of formula I: or a pharmaceutically acceptable salt thereof, wherein: R2 represents: in formula I, in which the carbapenem nucleus is substituted at the 2-position with a naphthosultam linked through a CH2 group. The naphthosultam is further substituted with various substituent groups including at least one cationic group.

Abstract: Compounds of formula I are disclosed. ##STR1## as well as pharmaceutically acceptable salts thereof. The naphthosultam is substituted with various substituent groups including at least one cationic group -A-Q-L-B.The carbapenems of the invention are effective against susceptible bacterial organisms, including methicillin resistant Staphylococcus aureus (MRSA), methicillin resistant Staphylococcus epidermidis (MRSE), and methicillin resistant coagulase negative Staphylococci (MRCNS).

Abstract: Carbapenems substituted with a naphthosultam at position 2 and linked through a CH.sub.2 group are disclosed. Pharmaceutical compositions and methods of treatment are also included. The naphthosultam is substituted with at least one cationic group --A--Q--L--B. ##STR1## A--Q--L--B represents a side chain wherein in part: A is a C.sub.1-6 alkylene group, straight or branched, and optionally interrupted or terminated by 1-2 of --O--, --S--, NR.sup.a --, --C(O)-- and CH.dbd.CH--Q is ##STR2## L represents a C.sub.1-8 alkylene group, straight or branched, and unsubstituted or substituted with 1-3 R.sup.c groups andB represents ##STR3## The carbapenems of the present invention are useful against gram positive microorganisms, especially methicillin resistant Staphylococci.

Abstract: Compounds of the formula: ##STR1## where R is hydrogen, hydroxyl, alkyl or acyl, R' and R" together are oxo, hydroxyimino or alkoxyimino, and R' and R" independently are hydrogen, hydroxyl, acyloxy, or amino substituted by any of hydrogen, alkylcarbonyl, arylcarbonyl, aralkylcarbonyl, alkoxycarbonyl, aralkoxycarbonyl, alkylsulfonyl or arylsulfonyl, and n is 0 or 1, and the pharmaceutically acceptable salts thereof. The compounds are macrolide antibiotics and are also useful as intermediates to the synthesis of other macrolide antibiotics. Pharmaceutical compositions and methods of their use are also provided for.

Abstract: A method is presented for isomerizing the E-isomer of 9-Deoxo-9-hydroximinoerythromycin A to its corresponding Z-isomer. The Z-isomer is useful as an antibiotic and as an intermediate for the synthesis of other macrolide antibiotics.

Abstract: The present invention relates to carbapenem antibacterial agents in which the carbapenem nucleus is substituted at the 2-position with a naphthosultam linked through a CH.sub.2 group. The naphthosultam is further substituted with various substituent groups including at least one cationic group. The compounds are represented by formula I: ##STR1## Pharmaceutical compositions and methods of use are also included.

Abstract: Carbapenems of the formula: ##STR1## are disclosed as useful antibacterial agents. Pharmaceutical compositions and methods of use are also disclosed.

Abstract: Lactams of the general structural formula: ##STR1## wherein R is hydrogen or C.sub.1-10 alkyl. These compounds are macrolides useful as antibiotics and as intermediates for the synthesis of other macrolide antibiotics.

Abstract: Cyclic iminoethers of the general structural formula wherein one of the R groups is hydrogen and the other R group represents a bond between the oxygen atom at C-6 or C-12 and the imino carbon at C-9; ##STR1## These compounds are macrolides useful as antibiotics and as intermediates for the synthesis of other macrolide antibiotics.