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NOVEL CEPHALOSPORIN HAVING SUBSTITUTED BENZYLOXYIMINO GROUP AT 7-POSITION, ITS PRODUCTION AND INTERMEDIATE, AND ITS USE AS DRUG
NOVEL CEPHALOSPORIN HAVING SUBSTITUTED BENZYLOXYIMINO GROUP AT 7-POSITION, ITS PRODUCTION AND INTERMEDIATE, AND ITS USE AS DRUG
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机译:新型头孢氨苄在7位上具有取代的苯并氧亚氨基基团,其生产和中间体以及用作药物
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摘要
Syn isomer of cpds. of formula (I), and their salts, are new. In (I), R1-R3, R5 = H, halo, OH, 1-4C alkyl (opt. substd. by halo, 1-4C alkyloxy, SH etc.); R4 = OH or 1-8C acyloxy; R7 = H or (1-3C alkyloxy)carbonyl; A = e.g. H, an equivalent of alkali(ne earth) metal, Mg, ammonium or aminated organic base etc.; or CO2A = CO2-; wavy line shows that CH2R6 can be in E- or Z-position; R6 = e.g. quat. ammonium or gp. of formula (i); X = CH2, NH, O or S; and Y, T, U, V, W and Z = CH or N; with the provisos.
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