[(2R,3R,4S,5R)-6-(2,2,2-trichloroethanimidoyl)oxy-3,4,5-tris(triethylsilyloxy)oxan-2-yl]methyl hexanoate 、 tert-butyl 3-[2-[[(1S,5S,6R,8R,10R,12S)-7-[(2R)-2-[[(2R)-3-[tert-butyl(diphenyl)silyl]oxy-2-methoxypropanoyl]amino]-4-methylpentanoyl]-10,12-dihydroxy-3-oxo-2-oxa-4,7-diazatricyclo[6.3.1.01,5]dodecane-6-carbonyl]amino]ethyl]-2,5-dihydropyrrole-1-carboxylate 在
三氟甲磺酸三甲基硅酯 作用下,
以
四氢呋喃 为溶剂,
反应 3.0h,
生成 、 tert-butyl 3-[2-[[(1S,5S,6R,8R,10R,12S)-7-[(2R)-2-[[(2R)-3-[tert-butyl(diphenyl)silyl]oxy-2-methoxypropanoyl]amino]-4-methylpentanoyl]-10-[(2S,3R,4S,5R,6R)-6-(hexanoyloxymethyl)-3,4,5-tris(triethylsilyloxy)oxan-2-yl]oxy-12-hydroxy-3-oxo-2-oxa-4,7-diazatricyclo[6.3.1.01,5]dodecane-6-carbonyl]amino]ethyl]-2,5-dihydropyrrole-1-carboxylate