Synthesis of 2,2'-Bis(3,6,9-triazanonyl)-4,4'-bithiazole and Related Compounds as New DNA Cleavage Agents
作者:Hideaki Sasaki
DOI:10.1248/cpb.55.1762
日期:——
Two new bithiazole derivatives, 2,2'-bis(3,6,9-triazanonyl)- and 2,2'-bis(3,7,11-triazaundecyl)-4,4'-bithiazoles (3a, b), were readily synthesized in six steps using the corresponding dialkylenetriamine as starting materials. Under physiological conditions, 5.0 microM 3a exhibited significant DNA cleavage activity in the presence of Co(II), whereas even at 50 micriM, 3b exhibited no DNA cleavage activity
两个新的Bithiazole衍生物,2,2'-双(3,6,9-三氮杂壬基)-和2,2'-双(3,7,11-三氮杂十二烷基)-4,4'-Bithiazoles(3a,b),使用相应的二亚烷基三胺作为起始原料,可以很容易地通过六个步骤进行合成。在生理条件下,在Co(II)存在下,5.0 microM 3a表现出显着的DNA裂解活性,而即使在50 micriM下,3b也没有表现出DNA裂解活性。此外,已证明3a与Co(II)离子形成1:2络合物,而3b则不。这些结论基于通过Job连续变异法获得的Bithiazole-Co配合物的化学计量。相反,与含有二亚丙基三胺部分的3b相比,含有二亚乙基三胺部分的3a对小牛胸腺(CT)DNA的亲和力降低。