(E)-3-Iodo-acrylic acid (E)-(S)-6-((1R,2S)-2-formyl-cyclopentyl)-1-methyl-hex-5-enyl ester 在
chromium dichloride 、
bis(acetylacetonate)nickel(II) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 (5E,13E)-(3aS,4R,9S,14aR)-4-Hydroxy-9-methyl-1,2,3,3a,4,9,10,11,12,14a-decahydro-8-oxa-cyclopentacyclotridecen-7-one 、
(5E,13E)-(3aS,4S,9S,14aR)-4-Hydroxy-9-methyl-1,2,3,3a,4,9,10,11,12,14a-decahydro-8-oxa-cyclopentacyclotridecen-7-one