tert-butyl [(4aS,5R,7aS)-7a-(2-fluoro-5-nitrophenyl)-5-methyl-4-(trifluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]oxazin-2-yl]carbamate 在
palladium 10% on activated carbon
氢气 作用下,
以
乙醇 为溶剂,
生成 tert-butyl ((4R,4aS,5R,7aS)-7a-(5-amino-2-fluorophenyl)-5-methyl-4-(trifluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]oxazin-2-yl)carbamate 、
tert-butyl ((4S,4aS,5R,7aS)-7a-(5-amino-2-fluorophenyl)-5-methyl-4-(trifluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]oxazin-2-yl)carbamate