cyanomethyl 2-hydroxy-6-methoxybenzoate 、
benzyl ((1S,2R,3R,4S,5S)-5-((3-acetylphenyl)amino)-2-(3,3-dimethylureido)-3,4-dihydroxy-2-((S)-1-hydroxyethyl)-4-(hydroxymethyl)-3-methylcyclopentyl)carbamate 在
potassium carbonate 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
反应 1.0h,
以57%的产率得到((1S,2R,3R,4S,5S)-5-((3-acetylphenyl)amino)-4-(((benzyloxy)carbonyl)amino)-3-(3,3-dimethylureido)-1,2-dihydroxy-3-((S)-1-hydroxyethyl)-2-methylcyclopentyl)methyl 2-hydroxy-6-methoxybenzoate