Exploration of DAPI analogues: Synthesis, antitrypanosomal activity, DNA binding and fluorescence properties
作者:Abdelbasset A. Farahat、Arvind Kumar、Martial Say、Tanja Wenzler、Reto Brun、Ananya Paul、W. David Wilson、David W. Boykin
DOI:10.1016/j.ejmech.2017.01.037
日期:2017.3
heteroaryl rings. Twelve amidines were synthesized and their DNA binding, fluorescence properties, in vitro and in vivo activities were evaluated. These compounds are shown to bind in the DNA minor groove with high affinity, and exhibit superior in vitro antitrypanosomal activity to that of DAPI. Six new diamidines (5b, 5c, 5d, 5e, 5f and 5j) exhibit superior in vivo activity to that of DAPI and four
DAPI 结构已通过用取代的苯基或杂芳基环取代苯基进行了修饰。合成了 12 种脒,并评估了它们的 DNA 结合、荧光特性、体外和体内活性。这些化合物以高亲和力结合在 DNA 小沟中,并表现出优于DAPI 的体外抗锥虫活性。六种新的二脒(5b、5c、5d、5e、5f和5j)表现出优于DAPI 的体内活性,其中四种化合物在 4 × 5 mg/kg ip 的低剂量下在T中提供 100% 的动物治愈。b. 罗得西亚感染的小鼠。一般来说,新类似物的荧光特性不如 DAPI,但化合物5i除外,其显示功效适度增加,而化合物5k与 DAPI 相当。