在
sodium methylate 作用下,
以
甲醇 为溶剂,
以86%的产率得到(2S,4S,5R,6R)-5-acetamido-2-[(2R,3R,4S,5S,6R)-2-[[(2R,3R,4R,5R,6S)-5-acetamido-6-[(2R,3R,4R,5R,6S)-6-[(2R,3S,4R,5R,6R)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(E,2S,3R)-3-hydroxy-2-(octadecanoylamino)octadec-4-enoxy]oxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,4-dihydroxyoxan-2-yl]methoxy]-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid