A facile synthesis of d-ribo-C20-phytosphingosine and its C2 epimer from d-ribose
作者:Miroslava Martinková、Jozef Gonda、Kvetoslava Pomikalová、Jozef Kožíšek、Juraj Kuchár
DOI:10.1016/j.carres.2011.05.028
日期:2011.9
A facile synthetic route to d-ribo-C(20)-phytosphingosine 31 and its C2 epimer 32 is described. The Overman rearrangement of allylic trichloroacetimidates derived from the known ribose derivative 7 has been used as the key step. The subsequent functional group interconversions in rearranged products 14 and 15 followed by Wittig olefination, Pd/C-mediated reduction and the removal of protecting groups
描述了一种容易的合成途径,用于合成d-核糖-C(20)-植物鞘氨醇31及其C2差向异构体32。衍生自已知核糖衍生物7的烯丙基三氯乙亚氨酸酯的超载重排已用作关键步骤。重排产物14和15中随后的官能团相互转化,然后进行维蒂希烯化,Pd / C介导的还原和保护基的去除,成功地构建了最终分子。