tert-butyl 3-methyl-2-oxo-4-{[7-(trifluoromethyl)-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}-1-oxa-8-azaspiro[4.5]dec-3-ene-8-carboxylate 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 3.0h,
以97%的产率得到3-methyl-4-{[7-(trifluoromethyl)-3,4-dihydroisoquinolin-2(1H)-yl]carbonyl}-1-oxa-8-azaspiro[4.5]dec-3-en-2-one hydrochloride