3-(2-chloro-ethoxy)-N-(3,5-dichloro-pyridin-4-yl)-4-methoxy-benzamide 、 [(2S,3R,4S,6R)-4-[acetyl(methyl)amino]-2-[[(1S,2R,5R,6S,7S,8R,9R,11R,13R,14R)-6-[(2R,4R,5S,6S)-5-acetyloxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2-ethyl-9-methoxy-1,5,7,9,11,13-hexamethyl-15-(methyldisulfanyl)-4,12,16-trioxo-3,17-dioxabicyclo[12.3.0]heptadecan-8-yl]oxy]-6-methyloxan-3-yl] acetate 在
三丁基膦 、
水 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 potassium iodide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 13.0h,
生成 [(2S,3R,4S,6R)-4-[acetyl(methyl)amino]-2-[[(1S,2R,5R,6S,7S,8R,9R,11R,13R,14R)-6-[(2R,4R,5S,6S)-5-acetyloxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-15-[2-[5-[(3,5-dichloropyridin-4-yl)carbamoyl]-2-methoxyphenoxy]ethylsulfanyl]-2-ethyl-9-methoxy-1,5,7,9,11,13-hexamethyl-4,12,16-trioxo-3,17-dioxabicyclo[12.3.0]heptadecan-8-yl]oxy]-6-methyloxan-3-yl] acetate