作者:Hideyo Takahashi、Kazusa Nishiyama、Takahiro Nakayama、Hideaki Natsugari
DOI:10.1055/s-0028-1083221
日期:2008.12
A new synthesis of ether-linked sugar utilizing the nucleophilic ring-opening reaction of carbohydrate α- or β-oxirane was developed. The reaction of 2,3-anhydro-α-d-mannopyranosides resulted in the expected high regioselectivity. In contrast, 2,3-anhydro-α-d-allopyranosides showed an unusual regioselectivity shift. The differentiating properties of carbohydrate α- or β-oxirane were investigated by comparing various conditions of the reaction.
开发了一种利用糖类α-或β-氧环的亲核开环反应合成醚连接糖的新方法。2,3-脱水-α-d-甘露糖苷的反应产生了预期的高区位选择性。相反,2,3-脱水-α-d-阿洛糖苷则表现出不寻常的区位选择性转变。通过比较不同反应条件,研究了糖类α-或β-氧环的区分特性。