作者:Evelyn Paz-Morales、Ruth Melendres、Fernando Sartillo-Piscil
DOI:10.1016/j.carres.2009.03.025
日期:2009.6
seven-step total synthesis of Hagen's gland lactones 1 and 2 starting from 1,2-O-isopropylidene-alpha-D-xylofuranose 3 is reported. The success of this short and practical synthesis depends on the use of two key reactions: a stereoselective nucleophilic substitution at the anomeric position of 5 and 6, which allowed the construction of the gamma-lactone ring, and an alkyl substitution reaction on tosylated
报道了从1,2-O-异亚丙基-α-D-木呋喃糖3开始的哈根腺内酯1和2的七步全合成。这种简短而实用的合成方法的成功取决于两个关键反应的使用:5和6端基异构位置的立体选择性亲核取代,可构建γ-内酯环,以及甲苯磺酸化化合物4上的烷基取代反应,这允许四氢呋喃环的附件在C-6处的碳链伸长。