Efficient and versatile synthesis of (2S,3R)-sphingosine and its 2-azido-3-O-benzylsphingosine analogue
作者:Xuequan Lu、Robert Bittman
DOI:10.1016/j.tetlet.2005.01.104
日期:2005.3
into the sphingosine base was effected by a sequence of Horner–Wadsworth–Emmons olefination of 5, conversion to allylic acetate 8, and copper-mediated Grignard coupling. The method is versatile, allowing a broad variety of aliphatic chains to be introduced in the organocuprate coupling step.
标题化合物(1,2)从(2合成[R,3小号)-2- ø -苄基-3,4- Ö(3'-亚戊基)-2,3,4- trihydroxybutanal( - 5)。将E-双键和脂肪族链安装到鞘氨醇碱基中的过程是由Horner-Wadsworth-Emmons的5烯化,转化为乙酸烯丙酯8以及铜介导的格利雅(Grignard)偶联实现的。该方法是通用的,允许在有机铜酸酯偶联步骤中引入各种各样的脂族链。