Inventor

MASUGI TAKASHI

51 patents

Patents

50 patents

US4409214AOct 11, 1983

7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO84 citations97

US4559334ADec 17, 1985

7-Substituted-3-vinyl-3-cephem compounds and processes for production of the same

FUJISAWA PHARMACEUTICAL CO89 citations96

US4487767ADec 11, 1984

7-[Amino or carboxy substituted oxyimino]-3-[amino or alkoxy substituted heterocyclic thiomethyl] cephalosporin derivatives

FUJISAWA PHARMACEUTICAL CO39 citations96

US4462999AJul 31, 1984

7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO30 citations96

US4423213ADec 27, 1983

7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO33 citations96

US4409215AOct 11, 1983

7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO35 citations96

US4366153ADec 28, 1982

7-[Substituted oximinoacetamido]-3-[hydroxy alkyltetrazolo]cephalosporin derivatives

FUJISAWA PHARMACEUTICAL CO37 citations93

US5026695AJun 25, 1991

7-acylamino-3-substituted cephalosporanic acid derivatives

FUJISAWA PHARMACEUTICAL CO11 citations82

US4904652AFeb 27, 1990

7-acylamino-3-substituted cephalosporanic acid derivatives

FUJISAWA PHARMACEUTICAL CO10 citations82

US4585860AApr 29, 1986

7-acylamino-3-vinylcephalosporanic acid derivatives useful for treatment of infectious diseases in human beings and animals

FUJISAWA PHARMACEUTICAL CO25 citations82

US4487927ADec 11, 1984

3-Phosphonium and 3-phosphoranylidenecephems

FUJISAWA PHARMACEUTICAL CO13 citations82

US4298529ANov 3, 1981

Alkoxyimino dioxy butyric acid derivatives

FUJISAWA PHARMACEUTICAL CO26 citations82

US4279818AJul 21, 1981

Syn-isomers of 7-[2-alkoxyimino-2-(2-amino-thiazol-4-yl)acetamido]-3-[nitrobenzoyl-, or benzoyl-oxymethyl]-3-cephem-4-carboxylic acid

FUJISAWA PHARMACEUTICAL CO12 citations82

US4705851ANov 10, 1987

Process for the preparation of 3-phosphoniummethyl-3-cephem compounds

FUJISAWA PHARMACEUTICAL CO21 citations80

US5110921AMay 5, 1992

7-acylamino-3-vinylcephalosporanic acid derivatives

FUJISAWA PHARMACEUTICAL CO5 citations74

US4960889AOct 2, 1990

7-acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO3 citations74

US4731443AMar 15, 1988

7-acylamino-3-vinylcephalosporanic acid derivatives

FUJISAWA PHARMACEUTICAL CO7 citations74

US4609730ASep 2, 1986

7-[substituted imino-2-(2-aminothiazol-4-yl)-acetamido]-3(2,2-dihalovinyl or ethynyl)-3-cephem-4-carboxylic acid (syn isomers), having antimicrobial activities

FUJISAWA PHARMACEUTICAL CO15 citations74

US4487768ADec 11, 1984

Cephem compounds

FUJISAWA PHARMACEUTICAL CO16 citations74

US4363807ADec 14, 1982

Cepham compounds

FUJISAWA PHARMACEUTICAL CO17 citations74

US4354022AOct 12, 1982

Process for preparing 3-methylenecepham compounds or a salt thereof

FUJISAWA PHARMACEUTICAL CO13 citations74

US4331664AMay 25, 1982

Syn isomer of 7-[2-cyclo(lower) alkoxyimino-2-(2-amino-or substituted aminothiazol-4-yl)acetamido]-3-lower alkanoyloxymethyl or heterocyclicthiomethyl-3-cephem-4-carboxylic acid compounds

FUJISAWA PHARMACEUTICAL CO7 citations74

US4316019AFeb 16, 1982

Preparation of syn-isomer of 3-alkanoyloxymethyl-7-(2-alkoxyimino-2-thiazolylacetamido-3-cephem-4-carboxylic acid compounds

FUJISAWA PHARMACEUTICAL CO5 citations74

US4304770ADec 8, 1981

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO12 citations74

US4246405AJan 20, 1981

Method for preparation of β-lactam compound

FUJISAWA PHARMACEUTICAL CO19 citations74

US4143166AMar 6, 1979

7[(2-Hydroxyamino-2-disubstituted phenyl-acetamido)-]3-heterocyclicthio-3-cephem-4-carboxylic acids

FUJISAWA PHARMACEUTICAL CO11 citations74

US5252731AOct 12, 1993

Cephalosporin intermediates

FUJISAWA PHARMACEUTICAL CO3 citations63

US5079369AJan 7, 1992

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO3 citations63

US4877873AOct 31, 1989

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO1 citations63

US4871860AOct 3, 1989

Syn-isomer of 3,7-disubstituted-3-cephem-4-caroxylic acid compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO3 citations63

US4804752AFeb 14, 1989

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO5 citations63

US4594446AJun 10, 1986

2-alkoxyimino-3,3-dialkoxy-butyrates and derivatives

FUJISAWA PHARMACEUTICAL CO2 citations63

US4544653AOct 1, 1985

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO1 citations63

US4493833AJan 15, 1985

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds

FUJISAWA PHARMACEUTICAL CO2 citations63

US4371531AFeb 1, 1983

Cephalosporin compounds

FUJISAWA PHARMACEUTICAL CO2 citations63

US4364943ADec 21, 1982

Syn-isomer of 7-[2-alkoxyimino-2-(2-amino-alkanoylamino-or haloalkanoylamino-thiazol-4-yl) acetamids]-3-[hexanoyl-, or phenylalkanoyl-oxymethyl or benzothiazolylthiomethyl]-3-cephem-4-carboxylic acid

FUJISAWA PHARMACEUTICAL CO4 citations63

US4242510ADec 30, 1980

Cephalosporin compounds and processes for the preparation thereof

FUJISAWA PHARMACEUTICAL CO3 citations63

US5594132AJan 14, 1997

7-acylamino-3-substituted cephalosporanic acid derivatives

FUJISAWA PHARMACEUTICAL CO0 citations52

US4719206AJan 12, 1988

Cephem compounds

FUJISAWA PHARMACEUTICAL CO1 citations52

US4518774AMay 21, 1985

3-Cephem intermediates

FUJISAWA PHARMACEUTICAL CO0 citations52

US4500709AFeb 19, 1985

Thiinyl and oxothiolyl derivatives

FUJISAWA PHARMACEUTICAL CO0 citations52

US4473566ASep 25, 1984

7-(α, α-Disubstituted-acetamido)-3-substituted-3-cephem-4-carboxylic acids

FUJISAWA PHARMACEUTICAL CO0 citations52

US4431643AFeb 14, 1984

Syn-isomer of 3-substituted-7-[2-cyclopentyloxyimino-2-(2-aminothiazol-4-yl)-acetamido]-3

FUJISAWA PHARMACEUTICAL CO1 citations52

US4379922AApr 12, 1983

Cepham compounds

FUJISAWA PHARMACEUTICAL CO1 citations52

US4254117AMar 3, 1981

7-(α,α-Disubstituted-acetemido)-3-substituted-3-cephem-4-carboxylic acids

FUJISAWA PHARMACEUTICAL CO0 citations52

Showing the top 50 of 51 patents by PatentIndex Score.

MASUGI TAKASHI

Patents

7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof

7-Substituted-3-vinyl-3-cephem compounds and processes for production of the same

7-[Amino or carboxy substituted oxyimino]-3-[amino or alkoxy substituted heterocyclic thiomethyl] cephalosporin derivatives

7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof

7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof

7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof

Cephem compounds

Cephem compounds

Syn 7-oxoimino substituted derivatives of cephalosporanic acid

Cephem compounds

3-Substituted-7-substituted alkanamido-3-cephem-4-carboxylic acid compounds

7-[Substituted oximinoacetamido]-3-[hydroxy alkyltetrazolo]cephalosporin derivatives

7-acylamino-3-substituted cephalosporanic acid derivatives

7-acylamino-3-substituted cephalosporanic acid derivatives

7-acylamino-3-vinylcephalosporanic acid derivatives useful for treatment of infectious diseases in human beings and animals

3-Phosphonium and 3-phosphoranylidenecephems

Alkoxyimino dioxy butyric acid derivatives

Syn-isomers of 7-[2-alkoxyimino-2-(2-amino-thiazol-4-yl)acetamido]-3-[nitrobenzoyl-, or benzoyl-oxymethyl]-3-cephem-4-carboxylic acid

Process for the preparation of 3-phosphoniummethyl-3-cephem compounds

7-acylamino-3-vinylcephalosporanic acid derivatives

7-acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof

7-acylamino-3-vinylcephalosporanic acid derivatives

7-[substituted imino-2-(2-aminothiazol-4-yl)-acetamido]-3(2,2-dihalovinyl or ethynyl)-3-cephem-4-carboxylic acid (syn isomers), having antimicrobial activities

Cephem compounds

Cepham compounds

Process for preparing 3-methylenecepham compounds or a salt thereof

Syn isomer of 7-[2-cyclo(lower) alkoxyimino-2-(2-amino-or substituted aminothiazol-4-yl)acetamido]-3-lower alkanoyloxymethyl or heterocyclicthiomethyl-3-cephem-4-carboxylic acid compounds

Preparation of syn-isomer of 3-alkanoyloxymethyl-7-(2-alkoxyimino-2-thiazolylacetamido-3-cephem-4-carboxylic acid compounds

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

Method for preparation of β-lactam compound

7[(2-Hydroxyamino-2-disubstituted phenyl-acetamido)-]3-heterocyclicthio-3-cephem-4-carboxylic acids

Cephalosporin intermediates

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

Syn-isomer of 3,7-disubstituted-3-cephem-4-caroxylic acid compounds and processes for the preparation thereof

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

2-alkoxyimino-3,3-dialkoxy-butyrates and derivatives

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereof

Syn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds

Cephalosporin compounds

Syn-isomer of 7-[2-alkoxyimino-2-(2-amino-alkanoylamino-or haloalkanoylamino-thiazol-4-yl) acetamids]-3-[hexanoyl-, or phenylalkanoyl-oxymethyl or benzothiazolylthiomethyl]-3-cephem-4-carboxylic acid

Cephalosporin compounds and processes for the preparation thereof

7-acylamino-3-substituted cephalosporanic acid derivatives

Cephem compounds

3-Cephem intermediates

Thiinyl and oxothiolyl derivatives

7-(α, α-Disubstituted-acetamido)-3-substituted-3-cephem-4-carboxylic acids

Syn-isomer of 3-substituted-7-[2-cyclopentyloxyimino-2-(2-aminothiazol-4-yl)-acetamido]-3

Cepham compounds

7-(α,α-Disubstituted-acetemido)-3-substituted-3-cephem-4-carboxylic acids