2,3,6-tri-O-acetyl-4-C-(bromoethynyl)-4-deoxy-β-D-glucopyranosyl-(1->6)-3,7-anhydro-1,2-dideoxy-4,5-bis-O-(4-methoxybenzyl)-8-O-(thexyldimethylsilyl)-1-C-(trimethylsilyl)-D-glycero-D-gulo-oct-1-ynitol 、 4-deoxy-4-C-<(trimethylgermyl)ethynyl>-β-D-glucopyranosyl-(1->8)-5,9-anhydro-1,2,3,4-tetradeoxy-6,7-bis-O-(4-methoxybenzyl)-10-O-(thexyldimethylsilyl)-D-glycero-D-gulo-deca-1,3-diynitol-1-yl(1->4-C)-2,3,6-tri-O-acetyl-4-deoxy-β-D-glucopyranosyl-... 在
tris-(dibenzylideneacetone)dipalladium(0) 、
copper(l) iodide 、 P(furyl)3 、
三乙胺 作用下,
以
二甲基亚砜 为溶剂,
反应 48.0h,
生成 4-deoxy-4-C-<4-<2,3,6-tri-O-acetyl-β-D-glucopyranose-1,4-diyl-(1->6)-3,7-anhydro-1,2-dideoxy-4,5-bis-O-(4-methoxybenzyl)-8-O-(thexyldimethylsilyl)-1-C-(trimethylsilyl)-D-glycero-D-gulo-oct-1-ynitol-6-yl>buta-1,3-diyne-1-yl>-β-D-glucopyranosyl-...