(R)-4-[5-(5-fluoro-4'-{2-[(2S,4S)-1-((S)-2-methoxycarbonylamino-3-methyl-butyryl)-4-methyl-pyrrolidin-2-yl]-1H-imidazol-4-yl}-2-trifluoromethoxy-biphenyl-4-ylcarbamoyl)-pyridin-2-yl]-3-methyl-piperazine-1-carboxylic acid tert-butyl ester 在
盐酸 、
N,N-二异丙基乙胺 作用下,
以
1,4-二氧六环 、
N,N-二甲基乙酰胺 为溶剂,
反应 1.0h,
生成 [(S)-1-((2S,4S)-2-{4-[4'-({6-[(R)-4-(2,2-dimethyl-propionyl)-2-methyl-piperazin-1-yl]-pyridine-3-carbonyl}-amino)-5'-fluoro-2'-trifluoromethoxy-biphenyl-4-yl]-1H-imidazol-2-yl}-4-methyl-pyrrolidine-1-carbonyl)-2-methyl-propyl]-carbamic acid methyl ester di-trifluoroacetic acid salt