(E,4R,5R,6S,7R,8S)-7-acetoxy-5-(tert-butyldimethylsilyloxy)-2,4,6,8-tetramethyl-dec-2-enal 、
(2E,5R,6E,8Z,10R)-methyl 8-ethyl-10-methyl-12-(1-phenyl-1H-tetrazol-5-ylsulfonyl)-5-(tetrahydro-2H-pyran-2-yloxy)dodeca-2,6,8-trienoate 在
双(三甲基硅烷基)氨基钾 作用下,
以
乙二醇二甲醚 为溶剂,
反应 1.0h,
以38%的产率得到(2E,5R,6E,8Z,10R,12E,14E,16R,17R,18S,19R,20S)-methyl 19-acetoxy-17-(tert-butyldimethylsilyloxy)-8-ethyl-10,14,16,18,20-pentamethyl-5-(tetrahydro-2H-pyran-2-yloxy)docosa-2,6,8,12,14-pentaenoate