Stereoselective synthesis of N,O,O,O-tetraacetyl-D-ribo-phytosphingosine, N,O,O-triacetyl-D-erythro-sphingosine and N,O,O-triacetyl sphingonine from a common chiral intermediate derived from D-mannitol
作者:Ravinder Mettu、Narendar Reddy Thatikonda、Oladoye Sunday Olusegun、Ramesh Vishvakarm、Jayathirtha Rao Vaidya
DOI:10.3998/ark.5550190.0013.637
日期:——
An efficient protocol for the stereoselective synthesis of tetraacetyl-D-ribo-phytosphingosine, triacetyl-D-erythro-sphingosine and triacetyl sphinganine has been devised from a common chiral intermediate derived from commercially available D-mannitol. The key steps involved are Sharpless epoxidation, Miyashita C(2) selective endo mode azide opening of 2,3-epoxy alcohol, and selective E-Wittig olefination
立体选择性合成四乙酰-D-核糖-植物鞘氨醇、三乙酰-D-赤型-鞘氨醇和三乙酰-鞘氨醇的有效方案是从衍生自市售 D-甘露醇的常见手性中间体设计的。涉及的关键步骤是 Sharpless 环氧化、宫下 C(2) 选择性内模式叠氮化物 2,3-环氧醇和选择性 E-Wittig 烯化。