作者:Lothar Ziser、Stephen G. Withers
DOI:10.1016/0008-6215(94)00214-2
日期:1994.12
Abstract Benzyl 2,3,2′,3′,4′-penta-O-acetyl-β-xylobioside, 2-nitrophenyl β-xylobioside, 4-nitrophenyl β-xylobioside, and 2-iodobenzyl 1-thio-β-xylobioside were synthesized via a short and highly selective route. β- d -Xylopyranosides were selectively 4-O-triethylsilylated using dibutyltin oxide and triethylsilyl chloride and subsequently 2,3-di-O-acetylated. Desilylation under acidic conditions gave
摘要苄基2,3,2',3',4'-戊-O-乙酰基-β-木糖苷,2-硝基苯基β-木糖苷,4-硝基苯基β-木糖苷和2-碘苄基1-硫代-β-木糖苷通过短而高度选择性的途径合成。使用二丁基氧化锡和三乙基甲硅烷基氯选择性地将β-d-吡喃吡喃糖苷4-O-三乙基甲硅烷基化,然后将2,3-二-O-乙酰化。在酸性条件下进行甲硅烷基化得到4-未保护的木糖苷,然后使用2,3,4-三-O-乙酰基-α-d-木吡喃糖基三氯乙酰亚氨酸酯将其β-d-木糖基化。