seen framstella new oximderivat of 3 - tiadiazolyl - thiomethyl - 7 - aminotiazolyl - acetamidocefalosporansyraThe compounds correspond to the formula: in which R1 represents hydrogen or certain protective groups, R2 represents certain alkyl radicals, R3 represents C1-C4 alkyl or alkoxy ...
7 \\/ alpha amino omega - (3,4 - metylendioxifenyl) - acylamido \\/ cefalosporansyraderivat 来自 掌桥科研 喜欢 0 阅读量: 6 申请(专利)号: SE19760008160 申请日期: 1976-07-16 公开/公告号: SE7608160L 公开/公告日期: 1977-01-23 ...
seen framstella new oximderivat of 3 - tiadiazolyl - thiomethyl - 7 - aminotiazolyl - acetamidocefalosporansyraThe compounds correspond to the formula: in which R1 represents hydrogen or certain protective groups, R2 represents certain alkyl radicals, R3 represents C1-C4 alkyl or alkoxy ...
Novel syn isomers of 7-(2-amino-4-thiazolyl)-acetamido-cephalosporanic acid compounds of the formula I wherein R is selected from the group consisting of -(CH2)n-S-R2, -CHF2 and -(CH2)n-S-CN, R2 is selected from the group consisting of optionally protonated n is an integer ...
seen framstella new 7 - amino - thiazolyl - acetamido - cefalosporansyraderivatNovel 7-amino-thiazolyl-acetamido-cephalosporanic acid compounds of the formula I wherein R is selected from the group consisting of hydrogen and a group easily removable by acid hydrolysis or hydrogenolysis, R1 is...
o - substituted oximderivat of 7 - amino - thiazolyl - acetamidocefalosporansyraNovel oximes of the syn isomers of 7-[2-(2-amino-4-thiazolyl)-acetamido]ceph-3-eme-4-carboxylic acid compounds of the fomrula I' wherein B is -(CH2)n'-R5, n' is an integer from 1 to 4, R5 is ...
This invention provides novel cephalosporin intermediates, 7 beta -amino-3-[(Z)-1-propen-1-yl]-3-cephem-4-carboxylic acid and esters thereof having the general formula wherein the configuration of the 3-propenyl group is Z sometimes referred to as cis- and R is hydrogen or a ...
Novel syn isomers of 7-amino-thiazolyl-acetamido-3-acetoxymethyl-cephalosporanic acid derivatives of the formula I wherein R1 is selected from the group consisting of -CN, -CONH2 and -COOR1', R1 ' is selected from the group consisting of alkyl of 1 to 3 carbon atoms, hydrogen, ...
7alfa - methoxy - 7beta - (1,3 - ditietan - 2 - karboxamido) - cefalosporansyraderivatThe invention relates to novel 7 alpha -methoxycephalosporin derivatives having at the 7 beta -position an amido group acylated by a 1,3-dithietane carboxylic acid residue and to 7 beta -iso...
Novel syn isomers of 7-(2-amino-4-thiazolyl)-acetamido-cephalosporanic acid compounds of the formula I wherein R is selected from the group consisting of -(CH2)n-S-R2, -CHF2 and -(CH2)n-S-CN, R2 is selected from the group consisting of optionally protonated n is an integer ...