2-(2-phenyl-6,7-dihydrooxazolo[4,5-c]pyridin-5(4H)-yl)nicotinonitrile 、
2-溴吡啶 在
2-phenyl-5-(pyridin-2-yl)-4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine 、 Silica gel 作用下,
以
hexanes 、
乙酸乙酯 为溶剂,
生成 2-phenyl-5-(pyridin-2-yl)-4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine