[EN] PROCESS FOR THE PREPARATION OF 1,2-DIAMINES<br/>[FR] PROCEDE DE PREPARATION DE 1,2-DIAMINES
申请人:RANBAXY LAB LTD
公开号:WO2005113512A1
公开(公告)日:2005-12-01
The invention relates to processes for the preparation of 1,2-diamines, and to the use of these compounds as intermediates for the preparation of several pharmaceutically active compounds. More particularly, it relates to the preparation of 2-methyl-1,2-diaminopropane. The process involves reductive cyclization of 1, 1 -cyanoanilide followed by hydrolysis of the resultant imidazole derivative to get 1,2-diamine.
本发明涉及制备1,2-二胺的过程,以及将这些化合物用作制备多种药物活性化合物的中间体。更具体地,涉及制备2-甲基-1,2-二氨基丙烷的制备方法。该过程涉及还原环化1,1-氰基苯胺酰胺,随后水解所得咪唑衍生物以获得1,2-二胺。