三氟乙酸 、
tert-butyl [(3R,4R)-1-(2-methyl-4-oxo-3,4-dihydropyrido[3,2-d]pyrimidine-6-yl)-4-(2,4,5-trifluorophenyl)piperidin-3-yl]carbamate 以
二氯甲烷 为溶剂,
生成 6-[(3R,4R)-3-amino-4-(2,4,5-trifluorophenyl)piperidin-1-yl]-2-methyl-3H-pyrido[3,2-d]pyrimidin-4-one;2,2,2-trifluoroacetic acid