Prodrug Modification Increases Potassium Tricyclo[5.2.1.0<sup>2,6</sup>]-decan-8-yl Dithiocarbonate (D609) Chemical Stability and Cytotoxicity against U937 Leukemia Cells
作者:Aiping Bai、G. Patrick Meier、Yong Wang、Chiara Luberto、Yusuf A. Hannun、Daohong Zhou
DOI:10.1124/jpet.103.064600
日期:2004.6
D609 in two steps: esterase-catalyzed hydrolysis of the acyl ester bond followed by conversion of the resulting hydroxymethyl D609 to formaldehyde and D609. Three S-(alkoxyacyl) D609 prodrugs were synthesized by varying the steric bulkiness of the acyl group. These prodrugs are stable to ambient conditions, but readily hydrolyzed by esterases to liberate D609 in a controlled manner. More importantly
三环[5.2.1.0(2,6)]-癸-8-基二硫代碳酸钾(D609)是一种选择性的抗肿瘤剂,有效的抗氧化剂和细胞保护剂。它有可能被开发为独特的化学治疗剂,该化学治疗剂可提供针对癌症的双重治疗益处,例如,增强肿瘤细胞的死亡,同时保护正常组织免受损伤。但是,D609含有化学上不稳定的二硫代碳酸酯(黄原酸酯)基团[OC(= S)S(-)/ OC(= S)SH],容易被氧化形成二硫键,并随后丧失所有生物活性。因此,我们通过将D609的黄原酸酯基团通过自消灭的亚甲氧基连接到酯上,开发了一系列S-(烷氧基酰基)D609前药的合成。这些S-(烷氧基甲酰基)-D609前药旨在通过两个步骤释放D609:酯酶催化的酰基酯键水解,然后将所得羟甲基D609转化为甲醛和D609。通过改变酰基的空间体积,合成了三种S-(烷氧基酰基)D609前药。这些前药在环境条件下稳定,但容易被酯酶水解以受控方式释放D609。更重要