1'-{[1-(1-methylethyl)piperidin-4-yl]methyl}-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-2'(1H)-one 、
盐酸 、
1,4-二氧六环 以
甲醇 为溶剂,
反应 0.5h,
以to afford 1′-{[1-(1-methylethyl)piperidin-4-yl]methyl}-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-2′(1′H)-one hydrochloride (0.17 g, 76%) as a colorless powder的产率得到1'-{[1-(1-methylethyl)piperidin-4-yl]methyl}-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-2'(1'H)-one hydrochloride