8-chloro-3-methyl-2-(tetrahydro-pyran-2-yl)-2,5-dihydro-pyrazolo[4,3-c]quinolin-4-one 、
t-butyl 2-(2-bromoethyl)piperidine-1-carboxylate 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 24.0h,
以27%的产率得到2-{2-[8-chloro-3-methyl-4-oxo-2-(tetrahydro-pyran-2-yl)-2,4-dihydro-pyrazolo[4,3-c]quinolin-5-yl]-ethyl}-piperidine-1-carboxylic acid tert-butyl ester