Total synthesis of N,O,O,O-tetraacetyl-d-ribo-phytosphingosine and its 2-epi-congener
作者:Miroslava Martinková、Kvetoslava Pomikalová、Jozef Gonda
DOI:10.2478/s11696-012-0245-0
日期:2013.1.1
Total synthesis of the natural d-ribo-phytosphingosine I and its 2-epimer III in the protected form was achieved through a common strategy. The aza-Claisen rearrangement of allylic thiocyanate (Z)-V incorporated the new stereogenic centre with nitrogen and the subsequent Wittig olefination constructed a non-polar side chain. Hydrogenation, followed by removal of protecting groups, completed the syntheses
通过一种共同的策略,天然的d-核糖-植物鞘氨醇Ⅰ及其2-表位Ⅲ被完全合成。烯丙基硫氰酸酯(Z)-V的氮杂-克莱森重排将新的立体中心与氮结合,随后的维蒂希烯化反应构建了非极性侧链。氢化,然后除去保护基,完成了I和III的合成。