cyclopenta [ij]isoquinolin-8(7H)-one 、
ethyl 2-(2-oxo-1-(piperidin-4-yl)indolin-3-yl)acetate 、
氰基硼氢化钠 在
titanium(IV) tetraethanolate 水 、
乙酸乙酯 、 Brine 、
Sodium sulfate-III 、 crude product 、 silica gel 、
ethyl 2-(1-(1-(7,8-dihydrocyclopenta[ij]isoquinolin-8-yl)piperidin-4-yl)-2-oxoindolin3-yl)acetate 作用下,
以
四氢呋喃 为溶剂,
反应 9.0h,
以to yield ethyl 2-(1-(1-(7,8-dihydrocyclopenta[ij]isoquinolin-8-yl) piperidin-4-yl)-2-oxoindolin-3-yl)acetate (Compound 31-16, 77 mg, 29%) as a white solid的产率得到ethyl 2-(1-(1-(7,8-dihydrocyclopenta[ij]isoquinolin-8-yl)piperidin-4-yl)-2-oxoindolin3-yl)acetate