(E,4S)-4-[[(2S,3S,5R,7S)-7-[(2S)-1-[(2S,3S)-2-[[(2S)-2-[[(2S)-2-amino-3-(4-methoxyphenyl)propanoyl]-methylamino]propanoyl]-methylamino]-3-methylpentanoyl]pyrrolidine-2-carbonyl]oxy-3-[tert-butyl(dimethyl)silyl]oxy-2,5,8,8-tetramethylnonanoyl]amino]-5-[tert-butyl(dimethyl)silyl]oxy-2-methylpent-2-enoic acid 在
三氟乙酸 作用下,
以
乙腈 为溶剂,
生成 (E,4S)-4-[[(2S,3S,5S,7S)-7-[(2S)-1-[(2S,3S)-2-[[(2S)-2-[[(2S)-2-amino-3-(4-methoxyphenyl)propanoyl]-methylamino]propanoyl]-methylamino]-3-methylpentanoyl]pyrrolidine-2-carbonyl]oxy-3-hydroxy-2,5,8,8-tetramethylnonanoyl]amino]-5-hydroxy-2-methylpent-2-enoic acid