Methyl [phenyl 5-acetamido-8-O-[5-acetamido-8-O-(5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylono-1'',9'-lactone)-4,7-di-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylono-1',9-lactone]-4,7-di... 、
2-(trimethylsilyl)ethyl 2-O-benzoyl-3-O-benzyl-β-D-galactopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 、 3 A molecular sieve 作用下,
以
乙腈 为溶剂,
反应 2.0h,
生成 2-(trimethylsilyl)ethyl [methyl 5-acetamido-8-O-[5-acetamido-8-O-(5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylono-1'',9'-lactone)-4,7-di-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylono-1',9-...