The invention disclosed a total synthesis process of novel ethoxy combretastatins and their prodrugs. Combretastatins are chemically modified by ethoxy substituted on the 4′-position of their B aryl ring and are converted to be their soluble prodrugs of phosphate or their inner salt of phosphorylcholine by modifying the hydroxyl on the 3′-position of their B aryl ring. Similarly, 3′-amino combretastatin is 4′-ethoxy chemically modified and further side chain of amino acid can be introduced to the amino to form soluble prodrug of amino acidamide. The structure of the said compound is showed as formula (I). Ethoxy combretastatins possess potent tubulin polymerization inhibitory activity and can be used for the treatment of inhibiting tumor or neovascular.
该发明揭示了一种新型乙氧基康柏他静的全合成过程及其前药。康柏他静通过在其B芳香环的4'-位上进行乙氧基取代进行
化学修饰,并通过修改其B芳香环的3'-位上的羟基转化为其
磷酸盐的可溶性前药或
磷酰
胆碱的内盐。类似地,3'-
氨基康柏他静经过4'-乙氧基
化学修饰,进一步可以引入
氨基酸的侧链到
氨基上形成
氨基酸酰胺的可溶性前药。所述化合物的结构如
化学式(I)所示。乙氧基康柏他静具有强大的微管聚合抑制活性,可用于治疗抑制肿瘤或新生血管的情况。