[EN] A NOVEL PROCESS FOR PREPARATION OF INDOLE DERIVATIVES<br/>[FR] NOUVEAU PROCEDE POUR LA PREPARATION DE DERIVES D'INDOLE
申请人:POTLURI RAMESH BABU
公开号:WO2004099141A1
公开(公告)日:2004-11-18
A novel process of preparation of a compound of 3-(2-Dimethylamino)-N-methyl-lH-indole-5-methane sulfonamide, which comprises of a reaction 4-hydrazino-N-methyl benzene methane sulfonamide with 4-dimethyl amino butyraldehyde diethyl acetal in a chlorinated solvent in the presence of ethyl poly phosphate and conversion of the crude product to a product of 3-(2-Dimethylamino)-N-methyl-lH-indole-5-methane sulfonamide succinate of extra high purity and colour.
一种制备3-(2-二甲胺基)-N-甲基-1H-吲哚-5-甲磺酰胺化合物的新方法,包括将4-氢化-N-甲基苯甲磺酰胺与4-二甲基氨基丁醛二乙基缩醛在氯化溶剂中在乙基聚磷酸存在下反应,并将粗产品转化为3-(2-二甲胺基)-N-甲基-1H-吲哚-5-甲磺酰胺琥珀酸盐的高纯度和颜色的产品。