dimethyl 7-(6-ethoxy-3,4,8,9-tetrahydro-3,3,8,8-tetramethylfuro[2,3-h]isoquinolin-1-yl)-1,4-dihydro-2-oxo-3,4(2H)-quinazolinediacetate 在
盐酸 作用下,
以
乙酸乙酯 为溶剂,
以10%的产率得到dimethyl 7-(6-ethoxy-3,4,8,9-tetrahydro-3,3,8,8-tetramethylfuro[2,3-h]isoquinolin-1-yl)-1,4-dihydro-2-oxo-3,4(2H)-quinazolinediacetate hydrochloride