2-(三氟甲氧基)烟酸 、 (±)-ethyl 2-(5-methoxy-1,2,3,4,5,6-hexahydro-7H-2,6-methanoazocino[5,4-b]indol-7-yl)acetate 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以35%的产率得到(±)-ethyl 2-(5-methoxy-3-(2-(trifluoromethyl)nicotinoyl)-1,2,3,4,5,6-hexahydro-7H-2,6-methanoazocino[5,4-b]indol-7-yl)acetate