作者:Richard L. Tolman、Louis H. Peterson
DOI:10.1016/0008-6215(89)84090-x
日期:1989.6
-arabino-hexose) from l -arabinose has been achieved. The synthesis is satisfactory for large-scale preparation of oleandrosylating intermediates, and employs dithiolane formation for protection of the aldehyde group during deoxygenation and methylation steps, and Wittig chain-extension to 2-deoxyhexose derivatives. Useful intermediates in the introduction of oleandrose glycosides into natural products
摘要实现了由1-阿拉伯糖短而实用的合成1-亚麻酸(2,6-二脱氧-3-O-甲基-1-阿拉伯糖己糖)的方法。该合成对于大规模制备油酸烷基酯化中间体是令人满意的,并且在脱氧和甲基化步骤以及将Wittig链延长为2-脱氧己糖衍生物的过程中,采用二硫杂环戊烷形成来保护醛基。制备并表征了将夹竹桃糖苷引入天然产物中的有用中间体,例如1,4-二苯甲酸酯和甲基苷。由3,4-二-O-制备另一种有用的糖基化中间体1-Oleandral(1,5-脱水-2,6-二脱氧-3-O-甲基-1-阿拉伯糖基己基-1-烯醇)。通过脱乙酰基乙酰基-1-大黄醛,并用氯化亚锡-重氮甲烷进行区域选择性甲基化。