METHOD FOR PREPARING N-[4-(2-{[2-(4-METHANE SULFONAMIDOPHENOXY) ETHYL](METHYL)AMINO}ETHYL)PHENYL]METHANESULFONAMIDE (DOFETILIDE)
申请人:Farmak, A.S.
公开号:US20190169121A1
公开(公告)日:2019-06-06
A method for preparing 1-(4-methanesulfonamidophenoxy)-2-[N-(4-methanesulfonamidophenethyl)-N-methylamino]ethane (Dofetilide) of formula I by sulfonylation of 1-(4-aminophenoxy)-2-[N-(4-aminophenethyl)-N-methylamino]ethane of formula II with N-methylsulfonyl-N′-methylimidazolium chloride of formula III.
使用公式II的1-(4-氨基苯氧基)-2-[N-(4-氨基苯乙基)-N-甲基氨基]乙烷,通过公式III的N-甲基磺酰基-N'-甲基咪唑氯化物进行磺酰化,制备公式I的1-(4-甲磺酰氨基苯氧基)-2-[N-(4-甲磺酰氨基苯乙基)-N-甲基氨基]乙烷(多菲利特)。