Tetramisole analogs as inhibitors of alkaline phosphatase, an enzyme involved in the resistance of neoplastic cells to 6-thiopurines
作者:Kuldeep K. Bhargava、Men H. Lee、Yow-Mei Huang、Linda S. Cunningham、Krishna C. Agrawal、Alan C. Sartorelli
DOI:10.1021/jm00214a021
日期:1977.4
both the thiazolidine and dihydroimidazole rings of tetramisole was found to be essential for enzyme inhibitory activity. Substitution of a naphthyl for the phenyl group and dehydrogenation at the 2,3 position of the thiazolidine ring were found to significantly enhance inhibitory activity for alkaline phosphatase. Tests employing (S)-(-)-6-(4-bromophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b]thiazole oxalate
合成了一系列四甲胺衍生物,并测试了其对碱性磷酸酶的抑制活性,该酶是部分从对6-硫嘌呤(Sarcoma 180 / TG)具有抗性的小鼠腹水肿瘤中纯化得到的。这些试剂包括在四咪唑和2,3-脱氢四咪唑的苯环的间位或对位上被卤素,CH 3或NO 2基团取代的衍生物。四咪唑和2,3-脱氢四甲醚的苯环也被萘环取代,而2,3-脱氢四甲醚的苯环被噻吩基环系统取代。发现四咪唑的噻唑烷环和二氢咪唑环的存在对于酶抑制活性至关重要。萘基取代苯基并在2处脱氢 发现噻唑烷环的3位显着增强了对碱性磷酸酶的抑制活性。使用(S)-(-)-6-(4-溴苯基)-2,3,5,6-四氢咪唑并[2,1-b]噻唑草酸酯和6-硫代鸟嘌呤的试验表明碱性磷酸酶抑制剂为能够增加6-硫鸟嘌呤对组织培养中肉瘤180 / TG细胞的毒性。