作者:Ken'ichi Takeo
DOI:10.1016/0008-6215(83)88267-6
日期:1983.1
Abstract Selective tritylation of methyl β-sophoroside (1) and subsequent acetylation gave the 3,4,2′,3′,4′-penta-O-acetyl-6,6′-di-O-trityl derivative, which was O-detritylated, and the product p-toluenesulfonylated, to give methyl 3,4,2′,3′,4′-penta-O-acetyl-6,6′-di-O-p-tolylsulfonyl-β-sophoroside (4) in 63% net yield. Compound 4 was also obtained in 69% yield by p-toluenesulfonylation of 1, followed
摘要甲基β-槐糖苷(1)的选择性三苯甲基化反应和随后的乙酰化反应得到了3,4,2',3',4'-戊-O-乙酰-6,6'-二-O-三苯甲基衍生物脱去三苯甲酸酯化,产物对甲苯磺酰化,得到甲基3,4,2',3',4'-戊-O-乙酰基-6,6'-二-Op-甲苯磺酰基-β-槐糖苷(4)净产率63%。通过对甲苯磺酰化1,然后乙酰化,也以69%的产率获得化合物4。通过4与各种亲核试剂的置换反应合成了1的几种6,6'-双取代衍生物。用甲醇钠处理4,得到甲基3,6:3',6'-双脱水-β-槐糖苷。从1的4,6-O-亚苄基衍生物开始,制备了1的几种6-和6'-单取代的衍生物。