3,4-二氢-2H-吡喃 、
8-(tert-butyl-diphenyl-silanyloxy)-3-methyl-2,5-dihydro-pyrazolo[4,3-c]quinolin-4-one 在
对甲苯磺酸 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 24.0h,
以74%的产率得到8-(tert-butyl-diphenyl-silanyloxy)-3-methyl-2-(tetrahydro-pyran-2-yl)-2,5-dihydro-pyrazolo[4,3-c]quinolin-4-one