It is possible to commercially advantageously prepare 1-1-[2-(7-methoxy-2,2-dimethyl-4-oxochroman-8-y)ethyl]piperidin-4-yl}-N-methyl-1H-indole-6-carboxamide by coupling (7-methoxy-2,2-dimethyl-4-oxochroman-8-yl)acetaldehyde, which is obtained by oxidizing 8-(2-hydroxyethyl)-7-methoxy-2,2-dimethylchroman-4-one, with N-methyl-1-(piperidin-4-yl)-1H-indole-6-carboxamide.
可以通过将氧化8-(2-羟乙基)-7-甲氧基-2,2-二甲基
色酮得到的(7-甲氧基-2,2-二甲基-4-氧代色基-8-基)
乙醛与
N-甲基-1-(
哌啶-4-基)-1H-
吲哚-6-羧酰胺偶联来商业上有利地制备1-1-[2-(7-甲氧基-2,2-二甲基-4-氧代色基-8-基)乙基]
哌啶-4-基}-
N-甲基-1H-
吲哚-6-羧酰胺。