N-甲基-2-吡咯羧酸 、 (1S,6S)-5-[1-(4-piperidyl)-4-piperidyl]-2-oxa-5-azabicyclo[4.4.0]decan-4-one hydrochloride 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
反应 3.0h,
以56%的产率得到(1S,6S)-10-[1-[1-(1-methylpyrrole-2-carbonyl)-4-piperidyl]-4-piperidyl]-7-oxa-10-azabicyclo[4.4.0]decan-9-one