[(E,2S,5S)-7-[(2R,3S,6S,8S)-2-[3-[[(2S,3R)-3-acetyloxy-2-methyl-4-[[2-[(2S,3S,6R)-3-methyl-6-[(E)-2-oxopent-3-enyl]oxan-2-yl]acetyl]amino]butanoyl]amino]propyl]-3-methyl-1,7-dioxaspiro[5.5]undecan-8-yl]-3,5-dimethylhept-3-en-2-yl] acetate 在
三乙基硼氢化锂 作用下,
以
四氢呋喃 为溶剂,
反应 0.42h,
以72.5%的产率得到[(E,2S,5S)-7-[(2R,3S,6S,8S)-2-[3-[[(2S,3R)-3-acetyloxy-4-[[2-[(2S,3S,6R)-6-[(E,2R)-2-hydroxypent-3-enyl]-3-methyloxan-2-yl]acetyl]amino]-2-methylbutanoyl]amino]propyl]-3-methyl-1,7-dioxaspiro[5.5]undecan-8-yl]-3,5-dimethylhept-3-en-2-yl] acetate