PROCESS FOR THE PREPARATION OF 6-CHLORO-2,3,4,9-TETRAHYDRO-1H-CARBAZOLE-1-CARBOXAMIDE AND INTERMEDIATES THEREOF
申请人:SIENA BIOTECH S.P.A.
公开号:US20140303382A1
公开(公告)日:2014-10-09
The invention relates to a novel process for the preparation of rac-6-Chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide (I) in pharmaceutically acceptable polymorphic form, through the conversion of a 3-bromo-2-oxo-cyclohexanecarboxylic acid alkyl ester into 6-chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxylic acid alkyl ester, which in turn is processed to yield the final product.
本发明涉及一种新的制备rac-6-氯-2,3,4,9-四氢-1H-咔唑-1-羧酰胺(I)的药用可接受多晶形式的方法,通过将3-溴-2-氧代环己烷羧酸烷基酯转化为6-氯-2,3,4,9-四氢-1H-咔唑-1-羧酸烷基酯,进而加工成最终产品。