申请人:Roussel Uclaf
公开号:US04439433A1
公开(公告)日:1984-03-27
Novel oximes of the syn isomers of 7-[2-(2-amino-4-thiazolyl)-acetamido]ceph-3-eme-4-carboxylic acid compounds of the fomrula ##STR1## wherein B is --(CH.sub.2).sub.n' --R.sub.5, n' is an integer from 1 to 4, R.sub.5 is ##STR2## R.sub.6 and R.sub.7 are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and when taken together with the nitrogen to which they are attached are selected from the group consisting of phthalimido and 1-pyridinyl, R.sub.1 is selected from the group consisting of chloro, CH.sub.3 O--, alkyl and alkylthio of 1 to 5 carbon atoms, cycloalkyl of 3 to 5 carbon atoms, --CH.sub.2 --S--R.sub.12, acetoxymethyl, carbamoyloxymethyl and ##STR3## R.sub.12 is selected from the group consisting of 2-oxo-(3H)-thiazolin-4-yl-carbonyl, 3-methyl-1,2-oxazol-5-yl-carbonyl, acyl of an alkanoic acid of 2 to 4 carbon atoms and a nitrogen heterocycle, Alka is alkyl of 1 to 4 carbon atoms and A is selected from the group consisting of hydrogen, --NH.sub.4, alkali metal, alkaline earth metal, magnesium, a non-toxic, pharmaceutically acceptable organic amine and easily cleaved ester and their non-toxic, pharmaceutically acceptable acid addition salts; having antibacterial activity and novel intermediates therefore.
合成的新型对映异构体氧肟化合物,化学式为##STR1##其中B为--(CH.sub.2).sub.n' --R.sub.5,n'为1至4的整数,R.sub.5为##STR2##R.sub.6和R.sub.7分别选自氢和1至4个碳原子的烷基,当与它们连接的氮一起时,选自邻苯二甲酰亚胺和1-吡啶基,R.sub.1选自氯,CH.sub.3 O--,1至5个碳原子的烷基和烷硫基,3至5个碳原子的环烷基,--CH.sub.2 --S--R.sub.12,乙酰氧甲基,氨基甲酰氧甲基和##STR3##R.sub.12选自2-氧代-(3H)-噻唑烷-4-基羰基,3-甲基-1,2-噁唑-5-基羰基,2至4个碳原子的烷酸酰基和氮杂环,Alka为1至4个碳原子的烷基,A选自氢,--NH.sub.4,碱金属,碱土金属,镁,无毒、药用可接受的有机胺和易于水解的酯及其无毒、药用可接受的酸盐;具有抗菌活性及其新型中间体。