BOC-L-脯氨酸 、 4-(benzyloxy)-1-(9-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-7-yl)pyridin-2(1H)-one hydrochloride 在
三乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以78%的产率得到(S)-tert-butyl 2-(7-(4-(benzyloxy)-2-oxopyridin-1(2H)-yl)-9-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-2-carbonyl)pyrrolidine-1-carboxylate