Asymmetric synthesis and cytotoxic activity of isomeric phytosphingosine derivatives
作者:Arnaud Rives、Cécile Baudoin-Dehoux、Nathalie Saffon、Nathalie Andrieu-Abadie、Yves Génisson
DOI:10.1039/c1ob06195j
日期:——
New phytosphingosine analogues have been conceived, synthesised and their cytotoxicity in B16 murine melanoma cells tested. These compounds embed an isomeric substitution pattern resulting from a formal permutation of the C-2 and C-4 substituents along the aliphatic skeleton of the original sphingoid base. Five different stereoisomers have been accessed through regio- and stereocontrolled opening of the oxirane of long chain epoxyamine precursors. The corresponding N-hexyl and N-octanoyl derivatives have also been prepared. In cell viability experiments all the primary amines were found to be more active than the natural phytosphingosine with IC50 in the low μM range for the most potent compounds.
我们构思并合成了新的植物鞘氨醇类似物,并测试了它们在 B16 小鼠黑色素瘤细胞中的细胞毒性。这些化合物包含一种异构体取代模式,它是由 C-2 和 C-4 取代基沿着原始鞘氨醇基脂肪族骨架的形式排列而产生的。通过对长链环氧胺前体的环氧乙烷进行区域和立体控制开环,可以获得五种不同的立体异构体。相应的 N-己基和 N-辛酰基衍生物也已制备完成。在细胞活力实验中,发现所有伯胺都比天然植物鞘氨醇更有效,最有效的化合物的 IC50 在低μM 范围内。