1-甲基环丙烷-1-羧酸 、
5-methyl-2-piperidin-4-yl-1,2,4,10-tetrahydro-3-oxa-10-azaphenanthren-9-one hydrochloride 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 18.0h,
以26 mg的产率得到rac-5-methyl-2-[1-(1-methylcyclopropanecarbonyl)piperidin-4-yl]-1,2,4,10-tetrahydro-3-oxa-10-azaphenanthren-9-one