(E)-5-[(4S,5R)-5-[(2R,4S,5S,6R)-6-[(E)-3-[(1R,3S,4R,5R,7R)-7-[(E)-2-iodoethenyl]-4-methyl-2,6-dioxabicyclo[3.2.1]octan-3-yl]prop-2-enyl]-4-(methoxymethoxy)-5-methyloxan-2-yl]-2,2-dimethyl-1,3-dioxolan-4-yl]pent-4-enal 、
tert-butyl (E,6R)-8-[(2S,3S,6S)-3-[tert-butyl(dimethyl)silyl]oxy-6-[2-(1-phenyltetrazol-5-yl)sulfonylethyl]-3,6-dihydro-2H-pyran-2-yl]-6-methylnon-7-enoate 在
双(三甲基硅烷基)氨基钾 作用下,
以
乙二醇二甲醚 、
甲苯 为溶剂,
反应 2.25h,
以79%的产率得到tert-butyl (E,6R)-8-[(2S,3S,6S)-3-[tert-butyl(dimethyl)silyl]oxy-6-[(2E,6E)-7-[(4S,5R)-5-[(2R,4S,5S,6R)-6-[(E)-3-[(1R,3S,4R,5R,7R)-7-[(E)-2-iodoethenyl]-4-methyl-2,6-dioxabicyclo[3.2.1]octan-3-yl]prop-2-enyl]-4-(methoxymethoxy)-5-methyloxan-2-yl]-2,2-dimethyl-1,3-dioxolan-4-yl]hepta-2,6-dienyl]-3,6-dihydro-2H-pyran-2-yl]-6-methylnon-7-enoate