(2S,4R)-methyl 4-(3-oxo-2,3-dihydroisoxazol-5-yl)-2-((3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)methyl)piperidine-1-carboxylate 在
氢溴酸 作用下,
以
溶剂黄146 为溶剂,
反应 16.0h,
以69%的产率得到5-((2S,4R)-2-((3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)methyl)piperidin-4-yl)isoxazol-3(2H)-one