发明名称 PROCESS FOR PREPARING CEPHALOSPORIN DERIVATIVES
摘要 Title compds. (I)[R=(tetrazol-1-yl)methane, etc.; M=H, diphenyl methane, earth metals; X=(5-methyl-1,3,4-thiadiazol-2-yl) thiomethyl, etc. were prepd.. Thus, 36g 6-nitrobenzotriazole was dissolved in 300ml anhyd. THF and 28ml triethyl amine. The mixt. was cooled, treated with 21.6ml N,N-dimethyl-sulfamoyl chloride, and stirred for 12hr. Tri-ethylamine.HCl was removed, concd., treated with n-Hexane, stood up at 0 ≦̸C for 3hrs, and washed with petroleum ether to give 53g 1-dimethylsulfamoyl-6-nitrobenzo triazole.
申请公布号 KR890001284(B1) 申请公布日期 1989.04.28
申请号 KR19860006218 申请日期 1986.07.29
申请人 HANIL PHARMACEUTICAL IND. CO.,LTD. 发明人 KO, MUN-KYU;SHIN, JAI-MOO;LEE, JONG-HOO
分类号 C07D501/34;C07D501/36;(IPC1-7):C07D501/34 主分类号 C07D501/34
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