作者:Anthony G. M. Barrett、Hiten G. Sheth
DOI:10.1039/c39820000170
日期:——
The racemic title compound was prepared in seven steps from 2,3,4-tri-O-acetyl-D-ribonolactone (3)via the highly stereoselective hydrogenations of 3-acetoxy-5-methylenefuran-2(5H)-one (4) and, subsequently, 2S(R)-[2S(R)-(t-butyldimethylsilyloxy)propyl]-5-[1-(t-butyloxycarbonyl)ethylidene] tetrahydrofuran (9).
外消旋的标题化合物由2,3,4-三-O-乙酰基-D-核糖内酯(3)通过3-乙酰氧基-5-亚甲基呋喃-2(5 H)-的一个高立体选择性加氢反应(7)制备。4),然后是2 S(R)-[2 S(R)-(叔丁基二甲基甲硅烷氧基)丙基] -5- [1-(叔丁氧羰基)亚乙基]四氢呋喃(9)。