(4S,6S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-methyl-6-(trifluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine 、
[5-(丙炔-1-基)吡啶-3-基]硼酸 以the product (4S,6S)—N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(2-fluoro-5-(5-(prop-1-ynyl)pyridin-3-yl)phenyl)-4-methyl-6-(trifluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine (XIII-4) was obtained after chromatography on silica-NH2 gel (eluent: heptane-EtOAc; gradient: 0-20% EtOAc) as a white foam (61% yield)的产率得到(4S,6S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(2-fluoro-5-(5-(prop-1-ynyl)pyridin-3-yl)phenyl)-4-methyl-6-(trifluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine