(6R,9R)-6-(2,3-difluorophenyl)-3-(dimethylamino)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-ol 、
4-nitrophenyl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxylate 在
sodium hydride 作用下,
以
四氢呋喃 、
苯 为溶剂,
以36%的产率得到(6R,9R)-6-(2,3-difluorophenyl)-3-(dimethylamino)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-yl 4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxylate