butyl (E)-4-iodo-3-methylbut-3-enoate 、 [(1R,5R,6Z,9Z,11R,13S,15S)-11-[tert-butyl(dimethyl)silyl]oxy-10-chloro-15-formyl-6-methyl-3-oxo-2,14-dioxabicyclo[11.2.1]hexadeca-6,9-dien-5-yl] acetate 在
chromium dichloride 、 nickel dichloride 作用下,
以
二甲基亚砜 为溶剂,
生成
butyl (E,5R)-5-[(1R,5R,6Z,9Z,11R,13S,15R)-5-acetyloxy-11-[tert-butyl(dimethyl)silyl]oxy-10-chloro-6-methyl-3-oxo-2,14-dioxabicyclo[11.2.1]hexadeca-6,9-dien-15-yl]-5-hydroxy-3-methylpent-3-enoate 、