3,4-Disubstituted oxazolidin-2-ones as constrained ceramide analogs with anticancer activities
作者:Alok Singh、Hyun-Joon Ha、Jungchan Park、Jun Hee Kim、Won Koo Lee
DOI:10.1016/j.bmc.2011.09.022
日期:2011.11
Heterocyclic analogs of ceramide as 3-alkanoyl or benzoyl-4-(1-hydroxy-2-enyl)-oxazolidin-2-ones were designed by binding of primary alcohol and amide in sphinogosine backbone as a carbamate. They were synthesized by addition of acyl halide to the common ring 4-(1-t-butyldimethylsilyloxyhexadec-2-enyl)-oxazolidin-2-one which was elaborated from chiral aziridine-2-carboxylate including stereoselective
通过将伯醇和酰胺作为氨基甲酸酯结合在鞘氨醇骨架上,设计了神经酰胺的杂环类似物,如3-烷酰基或苯甲酰基-4-(1-羟基-2-烯基)-恶唑烷-2-酮。它们是通过将酰基卤加到由手性氮丙啶-2-羧酸酯(包括立体选择性还原和开环反应为关键)的4-(1-叔丁基二甲基甲硅烷基氧基十六烷基-2-烯基)-恶唑烷-2-酮上合成的。脚步。由3-环戊烷羰基-4-(1- t-丁基二甲基甲硅烷基氧丁-2-烯基)-恶唑烷-2-酮与直链和环状烯烃经交叉复分解反应。所有化合物均作为抗白血病白血病HL-60细胞的抗白血病药物进行了测试。它们中的许多包括丙酰基,环戊酰基和对硝基苯甲酰基-4-(1-羟基十六烷基-2-烯基)-恶唑烷丁-2-酮显示出比天然C2-神经酰胺更好的抗白血病活性,并且在细胞死亡和DNA断裂之间具有良好的相关性。C4位置的碳链长度使活性发生了巨大变化。caspase激活可诱导细胞毒性,而内源性神经酰胺浓度不会大量累积或神经酰胺代谢受到任何干扰。