摘要:
Cephalosporin compounds of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and are a hydrogen atom or a lower alkyl group of 1-5 carbon atoms and A is a hydrogen atom or a nucleophilic compound residue or pharmacologically acceptable salts thereof have excellent antibacterial activity against Gram positive and Gram negative microorganisms.
摘要:
Cephalosporin compounds represented by the following formula (I) and pharmaceutically acceptable salts thereof have a broad bactericidal spectrum against various pathogenic bacteria including Psuedomonas aeruginosa and are useful as bactericidal remedies for pathogenic diseases of human and animals: ##STR1## wherein A represents an unsubstituted or substituted pyridylthio group of a formula (I-1); ##STR2## or an unsubstituted or substituted pyridiniumthio group of a formula (I-2): ##STR3## or an unsubstituted or substituted pyridinium group of a formula (I-3); ##STR4## or a 5- or 6-membered heterocyclicthio or bicycloheterocyclicthio group of a formula (I-4):--S--Het (I-4).
摘要:
This is a class of antibacterial compounds of the formula: ##STR1## wherein Y is straight or branched alkyl or alkenyl chain, cycloalkanomethyl of 3-6 carbon atoms, each group being optionally substituted by halogen, or a group ##STR2## wherein n is 0 or an integer of 1-3, A is a group --COR.sup.3 wherein R.sup.3 is hydroxy, a group ##STR3## wherein R.sup.4 and R.sup.5, which may be the same or different, are hydrogen or alkyl of 1-5 carbon atoms, a group ##STR4## or a 5- or 6-membered heterocyclic group containing nitrogen and/or sulfur, and R.sup.1 and R.sup.2, which may be the same or different, are hydrogen, alkyl of 1-5 carbon atoms, or R.sup.1 and R.sup.2 may be combined together to form cycloalkylidene of 3-5 carbon atoms, and Z is a group of the formula: ##STR5## wherein m is 0 or an integer of 3-5, R.sup.6 is hydrogen or alkyl of 1-3 carbon atoms, and R.sup.7, when m is an integer of 3-5, is alkyl of 1-5 carbon atoms, alkenyl, cyclopropyl, a group --(CH.sub.2).sub.p B wherein p is 0 or an integer of 1-3 and B is amino, alkyl-substituted amino, hydroxy, carboxy, carbamoyl, trifluoromethyl, sulfonic acid, sulfonic acid amide, alkylthio or cyano or, when m is 0, is alkyl of 1-5 carbon atoms, which may optionally be substituted by halogen, alkenyl, a group ##STR6## wherein R.sup.8 is hydrogen, alkyl of 1-4 carbon atoms or phenyl, or cyclopropyl, and a salt thereof.
摘要:
Compounds of the general formula (I): ##STR1## and pharmaceutically acceptable salts thereof, in which A, B, C and D each represent --CH.dbd. or --N.dbd., with the proviso that at least one of them is --N.dbd.;X represents --NH--, --O-- or --S--;Y represents --(CH.sub.2).sub.p -- wherein p is an integer from 0 to 4, --C(CH.sub.3).sub.2 --, --CH.sub.2 CH.dbd.CH--, --CH.sub.2 CO--, --CF.sub.2 -- or --CH.sub.2 COCH.sub.2 --;R.sup.1 represents a hydrogen atom, a C.sub.1-4 alkyl group, a halogen atom or a C.sub.1-4 alkoxy group;R.sup.2 represents a hydrogen atom, a hydroxyl group, a saturated or unsaturated C.sub.1-6 alkyl group, a C.sub.1-6 alkoxy group, a carboxyl group, a saturated or unsaturated C.sub.1-12 alkoxycarbonyl group which may be optionally substituted, a cycloalkoxycarbonyl group, a saturated or unsaturated five- or six-membered heterocyclic group containing at least one nitrogen atom optionally with one or more nitrogen and/or oxygen atoms, which may be optionally condensed and/or substituted, --CONR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --OCOR.sup.3 or --NHCONHR.sup.3 wherein R.sup.3 and R.sup.4, which may be the same or different, represent a C.sub.1-6 alkyl group which may be optionally substituted or a cycloalkyl group, andm and n each represent an integer from 0 to 2.
摘要:
A piperidine compound represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a lower alkyl group having from 1 to 4 carbon atoms, a lower alkoxy group having from 1 to 4 carbon atoms, a hydroxymethyl group, --CO.sub.2 R.sup.3, or ##STR2## wherein R.sup.3 represents a hydrogen atom or a lower alkyl group having from 1 to 4 carbon atoms; R.sup.4 represents a hydroxyl group, a lower alkoxy group having from 1 to 4 carbon atoms or --NR.sup.6 R.sup.7 (wherein R.sup.6 and R.sup.7, which may be the same or different, each represent a hydrogen atom or a lower alkyl group having from 1 to 4 carbon atoms); and R.sup.5 represents a hydrogen atom, a lower alkanoyl group having from 1 to 4 carbon atoms, or a chlorobenzoyl group; R.sup.2 represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, a substituted or unsubstituted benzyl group, or a (2,2,6,6-tetramethylpiperidin-1-yl)ethyl group; and n represents 0 or an integer of 1 or 2,and an antiulcer composition containing said piperidine compound.
摘要:
Compounds of the general formula (I): ##STR1## and pharmaceutically acceptable salts thereof, in whichA, B, C and D each represent --CH.dbd. or --N.dbd., with the proviso that at least one of them is --N.dbd.;X represents --NH--, --O-- or --S--;Y represents --(CH.sub.2).sub.p -- wherein p is an integer from 0 to 4, --C(CH.sub.3).sub.2 --, --CH.sub.2 CH.dbd.CH--, --CH.sub.2 CO--, --CF.sub.2 -- or --CH.sub.2 COCH.sub.2 --;R.sup.1 represents a hydrogen atom, a C.sub.1-4 alkyl group, a halogen atom or a C.sub.1-4 alkoxy group;R.sup.2 represnts a hydrogen atom, a hydroxyl group, a saturated or unsaturated C.sub.1-6 alkyl group, a C.sub.1-6 alkoxy group, a carboxyl group, a saturated or unsaturated C.sub.1-12 alkoxycarbonyl group which may be optionally substituted, a cycloalkoxycarbonyl group, a saturated or unsaturated five- or six-memebered heterocyclic group containing at least one nitrogen atom optionally with one or more nitrogen and/or oxygen atoms, which may be optionally condensed and/or substituted, --CONR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --OCOR.sup.3 or --NHCONHR.sup.3 wherein R.sup.3 and R.sup.4, which may be the same or different, represent a C.sub.1-6 alkyl group which may be optionally substituted or a cycloalkyl group, andm and n each represent an integrer from 0 to 2.The compounds are useful in treating ulcers.
摘要:
The invention provides compounds represented by the following formula (I) ##STR1## or a pharmaceutically acceptable salts thereof wherein A represents ##STR2## B represents a carboxy or tetrazolyl group; and X represents --O--, --NH-- or --S(O).sub.t --.The compounds possess angiotensin II antagonism, and may be used as an antihypertensive agent, a therapeutic agent to congestive heart failure, an antianxiety agent and a cognitive enhancing agent.
摘要:
Compounds of the general formula (I): ##STR1## and pharmaceutically acceptable salts thereof, in which A, B, C and D each represent --CH.dbd. or --N.dbd., with the proviso that at least one of them is --N.dbd.;X represents --NH--, --O-- or --S--;Y represents --(CH.sub.2).sub.p -- wherein p is an integer from 0 to 4, --C(CH.sub.3).sub.2 --, --CH.sub.2 CH.dbd.CH--, --CH.sub.2 CO--, --CF.sub.2 -- or --CH.sub.2 COCH.sub.2 --;R.sup.1 represents a hydrogen atom, a C.sub.1-4 alkyl group, a halogen atom or a C.sub.1-4 alkoxy group;R.sup.2 represents a hydrogen atom, a hydroxyl group, a saturated or unsaturated C.sub.1-6 alkyl group, a C.sub.1-6 alkoxy group, a carboxyl group, a saturated or unsaturated C.sub.1-12 alkoxycarbonyl group which may be optionally substituted, a cycloalkoxycarbonyl group, a saturated or unsaturated five- or six-membered heterocyclic group containing at least one nitrogen atom optionally with one or more nitrogen and/or oxygen atoms, which may be optionally condensed and/or substituted, --CONR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --OCOR.sup.3 or --NHCONHR.sup.3 wherein R.sup.3 and R.sup.4, which may be the same or different, represent a C.sub.1-6 alkyl group which may be optionally substituted or a cycloalkyl group, andm and n each represent an integer from 0 to 2.
摘要:
Disclosed is a novel cephem compound which is either one of a cis- or trans-isomer or a mixture of the cis-and trans-isomers, represented by the following general formula (I) and a pharmacologically acceptable salt thereof: ##STR1## wherein all of the substituents are as defined hereinbefore. Also disclosed are a process for producing the above compound and its use as an anti-bacterial agent comprising the same.
摘要:
Compounds of formulae (II), (III), (IV) and (V) or salts thereof are intermediates for pharmacologically active tricyclic benzazepine and benzothiazepine derivatives, ##STR1## wherein R represents hydrogen, alkyl, phenylalkyl, or a protective group of a triazole ring, R.sup.1 -R.sup.5 represent hydrogen, alkyl, alkenyl, alkoxy, amino, oxim or hydroxyl, and R.sup.41 represents hydrogen, C.sub.1-6 alkyl which may be optionally substituted, or a protective group for a carboxyl group.