NEW PROCESS FOR THE PREPARATION OF N-(1,1-DIMETHYLETHYL)-4-[[5'-ETHOXY-4-CIS-[2-(4-MORFOLINO)ETHOXY]-2'-OXOSPIRO[CYCLOHEXAN-1,3'-[H]INDOL]-1'(2'H)-YL]-SULFONYL]-3-METHOXYBENZAMIDEAND ITS SALTS

摘要

The invention relates to a process for the preparation of a compound of formula (I) and the salts thereof by reacting the compound of formula (II) with the compound of formula (III), which comprises carrying out the reactio n in dimethyl sulfoxide, at a temperature between 10 ~C and 40 ~C, preferably at room temperature and transforming the resulting base of formula (I), if desired, into its salt by a method known per se.