Acetic acid (E)-(1S,2R)-1-(4-methoxy-benzyloxymethyl)-2-methyl-4-methylene-7-{(2R,3R)-3-[1-((2R,3R)-3-trimethylsilanylethynyl-1,4-dioxa-spiro[4.4]non-2-yl)-vinyl]-1,4-dioxa-spiro[4.4]non-2-yl}-hept-6-enyl ester 在
tris(acetonitrile)pentamethylcyclopentadienylruthenium(II) hexafluorophosphate 、
四丁基氟化铵 、
溶剂黄146 作用下,
以
四氢呋喃 、
丙酮 为溶剂,
反应 1.5h,
生成 (2E,4E,7E)-8-[(2R,3R)-3-(1-{(2R,3R)-3-[(E)-(6R,7S)-7-Acetoxy-8-(4-methoxy-benzyloxy)-6-methyl-4-methylene-oct-1-enyl]-1,4-dioxa-spiro[4.4]non-2-yl}-vinyl)-1,4-dioxa-spiro[4.4]non-2-yl]-3-methyl-octa-2,4,7-trienoic acid ethyl ester