A cephalosporin compound of the formula (I):
wherein X and Y may be the same or different and are a hydrogen or halogen atom; Z is a hydrogen or halogen atom, -CH=CH₂, -CH=CH-CH₃, -OR¹, -SR² or -CH₂W in which R¹ and R² are a lower alkyl group and W is a hydrogen atom or a nucleophilic residue, its pharmaceutically acceptable salt, a process for preparing the same and their antibacterial composition.
Antibacterial hydroxyarylpiperazinocephalosporins of the formula: ##STR1## wherein R.sup.1 is amino or acylamino; R.sup.2 is H or methoxy; R.sup.3 is alkyl; R.sup.4 is --(P--C--Q).sub.n --, where P and Q each are H, alkyl or OH, or P and Q combine to form oxo, and n is 0 or 4; R.sup.5 is substituted or unsubstituted hydroxyaryl; R.sup.6 has a negative charge and is COO, or an anion in combination with an optionally protected carboxy; and X is O, S or S.fwdarw.O; an antibacterial preparation containing the same; a method for killing bacteria and preventing or treating bacterial infection by using the same; and syntheses of the cephalosporins are provided.
Novel cephem compound, method for producing the same and anti-bacterial agent
申请人:MEIJI SEIKA KABUSHIKI KAISHA
公开号:EP0349340A2
公开(公告)日:1990-01-03
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:
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.