tert-butyl (4S,6S)-4-(2,4-difluorophenyl)-6-(5-(2-hydroxy-2-methylpropyl)-3-methylisoxazol-4-yl)-4-methyl-5,6-dihydro-4H-1,3-thiazin-2-ylcarbamate 、
tert-butyl ((4S,6S)-4-(2,4-difluoro-5-(2-hydroxypropan-2-yl)phenyl)-6-(3,5-dimethylisoxazol-4-yl)-4-methyl-5,6-dihydro-4H-1,3-thiazin-2-yl)carbamate 、
三氟乙酸 在
MeOH Water NH4OAc 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以gave 1-(4-((4S,6S)-2-amino-4-(2,4-difluorophenyl)-4-methyl-5,6-dihydro-4H-1,3-thiazin-6-yl)-3-methylisoxazol-5-yl)-2-methylpropan-2-ol (6.5 mg, 0.016 mmol, 16.6% yield)的产率得到1-(4-((4S,6S)-2-amino-4-(2,4-difluorophenyl)-4-methyl-5,6-dihydro-4H-1,3-thiazin-6-yl)-3-methylisoxazol-5-yl)-2-methylpropan-2-ol