(S)-((S)-1-(8-(4-chlorophenyl)-5-((2-methyl-6-(trifluoromethyl)pyridin-3-yl)methyl)-6-oxo-7-phenyl-5,6-dihydro-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)ethyl) 2-(tert-butoxycarbonylamino)-3-methylbutanoate 在
盐酸 、
水 作用下,
反应 0.5h,
以85%的产率得到(S)-((S)-1-(8-(4-chlorophenyl)-5-((2-methyl-6-(trifluoromethyl)pyridin-3-yl)methyl)-6-oxo-7-phenyl-5,6-dihydro-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)ethyl) 2-amino-3-methylbutanoate hydrochloride