(E)-4-{(2S,3R,4R,5S)-3,4-Dihydroxy-5-[(2S,3S)-3-((1S,2S)-2-hydroxy-1-methyl-propyl)-oxiranylmethyl]-tetrahydro-pyran-2-yl}-3-methyl-but-2-enethioic acid S-methyl ester 在
盐酸 、 coper iodide 作用下,
以
乙腈 为溶剂,
反应 1.0h,
生成
(7RS)-7-<(2S,3R,4R,5S)-5-<(2S,3S,4S,5S)-2,3-epoxy-5-hydroxy-4-methylhexyl>-3,4-dihydroxytetrahydropyran-2-yl>methyl-7-methylundecan-5-one