(4S,6S)-4-(2-fluoro-5-iodo-4-methylphenyl)-4-methyl-6-(trifluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine 、
4-chloro-1-(difluoromethyl)-3-ethynyl-1H-pyrazole 以to give (4S,6S)-4-(5-((4-chloro-1-(difluoromethyl)-1H-pyrazol-3-yl)ethynyl)-2-fluoro-4-methylphenyl)-4-methyl-6-(trifluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine as off-white solid的产率得到(4S,6S)-4-(5-((4-chloro-1-(difluoromethyl)-1H-pyrazol-3-yl)ethynyl)-2-fluoro-4-methylphenyl)-4-methyl-6-(trifluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine