9-hydroxy-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indol-1-one 、
1-异丙基-4-哌啶醇 、
三苯基膦 、
偶氮二甲酸二叔丁酯 在
9-(1-isopropyl-piperidin-4-yloxy)-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indol-1-one 作用下,
以to give the desired product as a light yellow oil (13%)的产率得到9-(1-isopropyl-piperidin-4-yloxy)-2,3,4,5-tetrahydro-[1,4]diazepino[1,2-a]indol-1-one