在
4-甲基苯磺酸吡啶 作用下,
以
甲醇 为溶剂,
反应 0.33h,
生成 (1R,3R,5R,2'R,5'R,2''R,2'''S)-5'-{3''-(4-methoxybenzyloxy)-2-methylpropyl}-5'-(methyltetrahydrofuran-2-yl)-3-tetrahydrofuran-2'''-yl-2,7-dioxabicyclo[3.2.2]nonan-5-ol 、 (1S,3R,5S,2'R,5'R,2''R,2'''S)-5'-{3''-(4-methoxybenzyloxy)-2-methylpropyl}-5'-(methyltetrahydrofuran-2-yl)-3-tetrahydrofuran-2'''-yl-2,7-dioxabicyclo[3.2.2]nonan-5-ol