benzyl (2R,3S,4R,5S,6R)-5-acetamido-2-[(2S,3R,4S,5S,6R)-5-hydroxy-2-(4-methoxyphenoxy)-3-phenylmethoxy-6-(phenylmethoxymethyl)oxan-4-yl]oxy-4-phenylmethoxy-3-phenylsulfanyl-6-[(1S,2R)-1,2,3-tris(phenylmethoxy)propyl]oxane-2-carboxylate 在
偶氮二异丁腈 、
三苯基氢化锡 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
四氢呋喃 、
苯 为溶剂,
反应 6.0h,
生成 N-((2S,4S,4a'S,5R,5'R,6R,7'S,8'R,8a'S)-4,8'-bis(benzyloxy)-5'-((benzyloxy)methyl)-7'-(4-methoxyphenoxy)-3'-oxo-6-((1S,2R)-1,2,3-tris(benzyloxy)propyl)octahydro-3'H,5'H-spiro[pyran-2,2'-pyrano[3,4-b][1,4]dioxin]-5-yl)acetamide