发明名称 New storage stable phosphoric acid salt of N-methyl-o-phenylenediamine, useful as intermediate for e.g. heteroaromatic compounds containing two nitrogen atoms, e.g. benzimidazoles of pharmacological interest
摘要 Phosphoric acid salt (I) of N-methyl-o-phenylenediamine is new. An Independent claim is also included for the preparation of (I).
申请公布号 DE19917526(C1) 申请公布日期 2000.07.27
申请号 DE19991017526 申请日期 1999.04.17
申请人 BOEHRINGER INGELHEIM PHARMA KG 发明人 SCHNEIDER, HEINRICH
分类号 C07C211/50;C07C209/90;C07C211/51;(IPC1-7):C07C211/51;C01B25/18;C07C209/36 主分类号 C07C211/50
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