methyl 4,6-di-O-chloroethoxyethyl-2,3-di-O-propargyl-α-D-glucopyranoside 、 2-azidoethyl 2,3,4,6-tetra-O-acetyl-α-D-mannopyranoside 在
triethylphosphite copper(I) iodide complex 作用下,
以
甲苯 为溶剂,
以80%的产率得到[(2R,3R,4S,5S,6S)-3,4,5-triacetyloxy-6-[2-[4-[[(2R,3R,4S,5R,6S)-3-[2-(2-chloroethoxy)ethoxy]-2-[2-(2-chloroethoxy)ethoxymethyl]-6-methoxy-5-[[1-[2-[(2S,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyethyl]triazol-4-yl]methoxy]oxan-4-yl]oxymethyl]triazol-1-yl]ethoxy]oxan-2-yl]methyl acetate