(5R,7S,8S,9R,10E,12E)-9-(tert-butyldimethylsilyloxy)-5-((S,Z)-7-iodo-4-methoxyhept-6-enyl)-2,2,3,3,8,11,16,16,17,17-decamethyl-4,15-dioxa-3,16-disilaoctadeca-10,12-dien-7-ol 、
(3R,4S)-3-[tert-butyl(dimethyl)silyl]oxy-4-[(4R,5S,6R)-2,2,5-trimethyl-6-[(E,2S)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pent-4-en-2-yl]-1,3-dioxan-4-yl]pentanoic acid 在
四(三苯基膦)钯 、
thallium (I) ethoxide 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 0.5h,
以21%的产率得到(3R,4S)-3-[tert-butyl(dimethyl)silyl]oxy-4-[(4R,5S,6R)-2,2,5-trimethyl-6-[(2S,4E,6Z,9S,13R,15S,16S,17R,18E,20E)-13,17,22-tris[[tert-butyl(dimethyl)silyl]oxy]-15-hydroxy-9-methoxy-16,19-dimethyldocosa-4,6,18,20-tetraen-2-yl]-1,3-dioxan-4-yl]pentanoic acid