(1R,7R,8R,9R,11R)-4-[(2R,4S)-1,5-dihydroxy-2,4-dimethylhept-6-enyl]-9-ethenyl-11-methyl-8-triethylsilyloxy-2,6-dioxatricyclo[5.2.2.01,5]undec-4-en-3-one 在
盐酸 、 o-iodoxyiodobenzene 作用下,
以
甲醇 、
二甲基亚砜 为溶剂,
反应 3.0h,
生成 (2R,4S)-1-[(1R,7R,8R,9R,11R)-9-ethenyl-8-hydroxy-11-methyl-3-oxo-2,6-dioxatricyclo[5.2.2.01,5]undec-4-en-4-yl]-2,4-dimethylhept-6-ene-1,5-dione