(1S,2R,5S,6R,12S,13S,15R,17R)-5-isoquinolin-7-yl-6-methyl-14,20-dioxahexacyclo[15.2.1.01,9.02,6.011,17.013,15]icosa-8,10-dien-12-ol 、
二甲胺 在
titanium(IV) isopropylate 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以60%的产率得到(1S,2R,5S,6R,12S,13R,14S,16R)-14-(dimethylamino)-5-isoquinolin-7-yl-6-methyl-19-oxapentacyclo[14.2.1.01,9.02,6.011,16]nonadeca-8,10-diene-12,13-diol