Novel cephalosporin compounds represented by formula (I): ##STR1## wherein R.sup.1 represents a lower alkyl group which may optionally have a substituent; each of R.sup.2 and R.sup.3 independently represents a hydrogen atom or hydroxy group; and A represents a hydrogen atom or a residue of nucleophilic compound, and pharmacologically acceptable salts or esters thereof exhibit a potent antibacterial activity against gram positive and gram negative bacteria.
4-pyridone derivatives of Formula I
and pharmaceutically acceptable derivatives thereof, processes for their preparation, pharmaceutical formulations thereof and their use in chemotherapy of certain parasitic infections such as malaria, are provided.
3-Chloro-6-(hydroxymethyl)-2-methyl-5-[4-(4-[(trifluoromethyl)oxy]phenyl}oxy)phenyl]-4(1H)-pyridinone, having the following formula:
is described along with its pharmaceutically acceptable salts, processes for its preparation, pharmaceutical formulations thereof and its uses in treatment of certain parasitic infections such as malaria.
Novel cephalosporin compounds and antibacterial agents
申请人:MEIJI SEIKA KAISHA LTD.
公开号:EP0354576A2
公开(公告)日:1990-02-14
Novel cephalosporin compounds represented by formula (I):
wherein R¹ represents a lower alkyl group which may optionally have a substituent; each of R² and R³ independently represents a hydrogen atom or hydroxy group; and A represents a hydrogen atom or a residue of nucleophilic compound, and pharmacologically acceptable salts or esters thereof exhibit a potent antibacterial activity against gram positive and gram negative bacteria.