Inventor
LEANZA WILLIAM J
21 patents
Patents
21 patentsUS4194047AMar 18, 1980
Substituted N-methylene derivatives of thienamycin
MERCK & CO INC90 citations96
US4309438AJan 5, 1982
N-Alkyl-N-iminomethyl derivatives of thienamycin
MERCK & CO INC29 citations92
US5985844ANov 16, 1999
Homoerythromycin A derivatives modified at the 4"-and 8A-positions
MERCK & CO INC40 citations91
US5606030AFeb 25, 1997
Coconjugates of OMPC, HIV related peptides and anionic moieties
MERCK & CO INC18 citations83
US5274122ADec 28, 1993
Acidic derivatives of homocysteine thiolactone
MERCK & CO INC9 citations74
US4610823ASep 9, 1986
Process for preparing substituted 2-thioxopenams and 2-substituted thiopenems
MERCK & CO INC8 citations74
US4235917ANov 25, 1980
N-Alkyl-N-acyl derivatives of thienamycin
MERCK & CO INC14 citations74
US4235920ANov 25, 1980
N-Alkylated derivatives of thienamycin
MERCK & CO INC18 citations74
US4226870AOct 7, 1980
O-, N- and carboxyl derivatives of thienamycin
MERCK & CO INC13 citations74
US4150145AApr 17, 1979
N-alkylated derivatives of thienamycin sulfoxide and sulfone
MERCK & CO INC16 citations74
US4675317AJun 23, 1987
2-unsaturated alkylthio-pen-2-em-3-carboxylic acids
MERCK & CO INC12 citations73
US4748162AMay 31, 1988
6-substituted-2-carbaminidoyl-pen-2-em-3-carboxylic acids
MERCK & CO INC4 citations63
US4650794AMar 17, 1987
6-(1-hydroxyethyl)-2-carbamimidoyl-pen-2-em-3-carboxylic acids
MERCK & CO INC6 citations63
US4397861AAug 9, 1983
N- And carboxyl derivatives of thienamycin
MERCK & CO INC3 citations63
US4208330AJun 17, 1980
O-Derivatives of thienamycin
MERCK & CO INC2 citations63
US3931150AJan 6, 1976
Probenecidoxymethyl and 1-ethyl esters of ampicillin
MERCK & CO INC2 citations63
US4713451ADec 15, 1987
Crystalline dimethyliminothienamycin
MERCK & CO INC6 citations62
US4335043AJun 15, 1982
Substituted N-methylene derivatives of thienamycin
MERCK & CO INC3 citations62
US4232030ANov 4, 1980
Substituted N-methylene derivatives of thienamycin sulfoxide and sulfone
MERCK & CO INC3 citations62
US4839352AJun 13, 1989
N-acyl derivatives of thienamycin
MERCK & CO INC4 citations61
US4311704AJan 19, 1982
Substituted N-methylene derivatives of thienamycin
MERCK & CO INC0 citations41