4-(6-(3,6-diazabicyclo[3.1.1]heptan-3-yl)pyridin-3-yl)-6-(2-hydroxy-2-methylpropoxy)pyrazolo[1,5-a]pyridine-3-carbonitrile dihydrochloride 、
3-乙炔基-4-氟苯甲醛 在
三乙酰氧基硼氢化钠 作用下,
以
1,2-二氯乙烷 为溶剂,
以63.78%的产率得到4-(6-(6-(3-ethynyl-4-fluorobenzyl)-3,6-diazabicyclo[3.1.1]heptan-3-yl)pyridin-3-yl)-6-(2-hydroxy-2-methylpropoxy)pyrazolo[1,5-a]pyridine-3-carbonitrile