吡啶-2-甲醛 、
2-chloro-6-[[1-(hydroxymethyl)-2-methyl-propyl]amino]-4-(trifluoromethyl)pyridine-3-carbonitrile 、
对甲苯磺酸 在
乙酸乙酯 、
正己烷 、
2-chloro-6-[4-isopropyl-2-(2-pyridyl)oxazolidin-3-yl]-4-(trifluoromethyl)pyridine-3-carbonitrile 作用下,
以
甲苯 为溶剂,
反应 6.0h,
以2-Chloro-6-[4-isopropyl-2-(2-pyridyl)oxazolidin-3-yl]-4-(tri fluoromethyl) pyridine-3-carbonitrile (Compound 12) was isolated as a solid in 20% yield的产率得到2-chloro-6-[4-isopropyl-2-(2-pyridyl)oxazolidin-3-yl]-4-(trifluoromethyl)pyridine-3-carbonitrile