PREPARATION OF 13-CYCLOHEXYL-3-METHOXY-6-[METHYL-(2--ETHYL)-CARBAMOYL]-7H-INDOLO-[2,1-a]-[2]-BENZAZEPINE-10-CARBOXYLIC ACID

摘要

The present invention relates to an improved method for the preparation of 13-cyclohexyl-3-methoxy-6-[methyl-(2-{2-[methyl-(sulphamoyl)-amino]-ethoxy}-ethyl)-carbamoyl]-7H-indolo-[2,1-a]-[2]-benzazepine-10-carboxylic acid. The present invention also relates to a new compound, namely tert-butyl (methyl-{2-[2-(methylamino)-ethoxy]-ethyl}-sulphamoyl)-carbamate, used in this improved method.