(3R,4R)-4-Methoxy-4-[(2S,3R,5S)-5-methoxy-3-((R)-2-methyl-3-oxo-propyl)-tetrahydro-furan-2-yl]-3-triisopropylsilanyloxy-butyric acid (3E,5E)-(R)-6-iodo-1-methyl-hexa-3,5-dienyl ester 在
chromium dichloride 、 nickel dichloride 作用下,
以
二甲基亚砜 为溶剂,
反应 5.0h,
生成 (7E,9E)-(2S,3aR,5R,6S,12R,16R,17R,17aS)-6-Hydroxy-2,17-dimethoxy-5,12-dimethyl-16-triisopropylsilanyloxy-2,3,3a,4,5,6,11,12,15,16,17,17a-dodecahydro-1,13-dioxa-cyclopentacyclohexadecen-14-one 、 (7E,9E)-(2S,3aR,5R,6R,12R,16R,17R,17aS)-6-Hydroxy-2,17-dimethoxy-5,12-dimethyl-16-triisopropylsilanyloxy-2,3,3a,4,5,6,11,12,15,16,17,17a-dodecahydro-1,13-dioxa-cyclopentacyclohexadecen-14-one