3-Acylamino-1-carboxymethyloxy (or thio) carbonyl-2-azetidinones

Claim 1

A compound having the formula ##STR55## or a pharmaceutically acceptable ester or basic salt thereof, wherein Z 1 and Z 2 are each independently oxygen or sulfur; R 1 is an acyl group derived from a carboxylic acid; R 2 is hydrogen or methoxy; R 3 and R 4 are the same or different and each is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, substituted phenyl or a 4, 5, 6 or 7-membered heterocycle, or one of R 3 and R 4 is hydrogen and the other is azido, halomethyl, dihalomethyl, trihalomethyl, alkoxycarbonyl, 2-phenylethenyl, 2-phenylethynyl, --CH 2 X 1 , carboxyl, --S--X 2 , --O--X 2 , ##STR56## or ##STR57## wherein X 1 is azido, amino, hydroxy, carboxyl, alkoxycarbonyl, alkanoylamino, phenylcarbonylamino, (substituted phenyl)carbonylamino, alkylsulfonyloxy, phenylsulfonyloxy, (substituted phenyl)-sulfonyloxy, phenyl, substituted phenyl, cyano, ##STR58## --S--X 2 or --O--X 2 ; X 2 is alkyl, substituted alkyl, phenyl, substituted phenyl, phenylalkyl, (substituted phenyl)alkyl, alkanoyl, phenylalkanoyl, (substituted phenyl)alkanoyl, phenylcarbonyl, (substituted phenyl)carbonyl, or heteroarylcarbonyl; one of X 3 and X 4 is hydrogen and the other is hydrogen or alkyl, or X 3 and X 4 when taken together with the carbon atom to which they are attached form a cycloalkyl group; X 5 is formyl, alkanoyl, phenylcarbonyl, (substituted phenyl)carbonyl, phenylalkylcarbonyl, (substituted phenyl)alkylcarbonyl, carboxyl, alkoxycarbonyl, aminocarbonyl, (substituted amino)carbonyl, or cyano; A is --CH═CH--, --(CH 2 ) n --, --CH 2 --O--, --CH 2 --NH-- or --CH 2 --S--CH 2 --; n is 0, 1 or 2; and X 6 and X 7 are the same or different and each is hydrogen, alkyl, phenyl or substituted phenyl, or X 6 is hydrogen and X 7 is amino, substituted amino, acylamino or alkoxy, or X 6 and X 7 when taken together with the nitrogen atom to which they are attached form a 4, 5, 6 or 7-membered heterocycle; and R 5 and R 6 are the same or different and each is hydrogen, alkyl, alkenyl, alkynyl, phenyl, substituted phenyl, cycloalkyl or a 4, 5, 6 or 7-membered heterocycle, or R 5 and R 6 together with the carbon atom to which they are attached are cycloalkyl or a 4, 5, 6 or 7-membered heterocycle, or ═CX 8 X 9 wherein X 8 and X 9 are the same or different and each is hydrogen, alkyl, phenyl or substituted phenyl, or one of R 5 and R 6 is hydrogen and the other is halomethyl, dihalomethyl, trihalomethyl, alkoxycarbonyl, alkenyl, alkynyl, 2-phenylethenyl, 2-phenylethynyl, carboxyl, --CH 2 --X 1 , --S--X 2 , --O--X 2 , or ##STR59## wherein the terms "alkyl" and "alkoxy" refer to groups having 1 to 10 carbon atoms; the terms "cycloalkyl" and "cycloalkenyl" refer to groups having 3, 4, 5, 6 or 7 carbon atoms: the term "substituted alkyl" refers to alkyl groups substituted with one or more azido, amino, halogen, hydroxy, carboxy, cyano, alkoxycarbonyl, aminocarbonyl, alkanoyloxy, alkoxy, phenyloxy, (substituted phenyl)oxy, mercapto, alkylthio, phenylthio, (substituted phenyl)thio, alkylsulfinyl, or alkylsulfonyl groups; the terms "alkanoyl", alkenyl" and "alkynyl" refer to groups having 2 to 10 carbon atoms; the term "substituted phenyl" refers to a phenyl group substituted with 1, 2 or 3 amino, halogen, hydroxyl, trifluoromethyl, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, aminocarbonyl, or carboxyl groups; the term "heteroaryl" refers to pyridinyl, furanyl, pyrrolyl, thienyl, 1,2,3-triazolyl, 1,2,4-triazolyl, imidazolyl, thiazolyl, thiadiazolyl, pyrimidinyl, oxazolyl, triazinyl, or tetrazolyl, or one of the above groups substituted with one or more halogen, hydroxy, nitro, amino, cyano, trifluoromethyl, alkyl of 1 to 4 carbons, alkoxy of 1 to 4 carbons, alkylsulfonyl, phenyl, substituted phenyl, 2-furfurylideneamino, or substituted alkyl, wherein the alkyl group has 1 to 4 carbons, groups; the term "a 4,5,6 or 7-membered heterocycle" refers to pyridinyl, furanyl, pyrrolyl, thienyl 1,2,3-triazolyl, 1,2,4-triazolyl, imidazolyl, thiazolyl, thiadiazolyl, pyrimidinyl, oxazolyl, triazinyl, tetrazolyl, azetinyl, oxetanyl, thietanyl, piperidinyl, piperazinyl, imidazolidinyl, oxazolidinyl, pyrrolidinyl, tetrahydropyrimidinyl, dihydrothiazolyl or hexahydroazepinyl or to one of the above groups substituted with one or more oxo, halogen, hydroxy, nitro, amino, cyano, trifluoromethyl, alkyl of 1 to 4 carbons, alkoxy of 1 to 4 carbons, alkylsulfonyl, phenyl, substituted phenyl, 2-furfurylideneamino, or substituted alkyl, wherein the alkyl group has 1 to 4 carbons, groups; the term "substituted amino" refers to a group having the formula --NY 1 Y 2 wherein Y 1 is hydrogen, alkyl, phenyl, substituted phenyl, phenylalkyl or (substituted phenyl)alkyl, and Y 2 is alkyl, phenyl, substituted phenyl, phenylalkyl, (substituted phenyl)alkyl, hydroxy, cyano, alkoxy, phenylalkoxy, or amino.