在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 6.0h,
以74%的产率得到N-[6-[[(2R,3R,4R,5S,6R)-5-[(2S,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]amino]-6-oxohexyl]-5-[3-[4-(5-methyl-1,2,4-oxadiazol-3-yl)phenoxy]propyl]-1,2-oxazole-3-carboxamide