Synthesis of directly linked diazine isosteres of pyrrole-polyamide that photochemically cleave DNA
作者:Chi Wi Ong、Ya-Ting Yang、Meng-Chi Liu、Keith R. Fox、Ping Hao Liu、Hung-Wei Tung
DOI:10.1039/c1ob06803b
日期:——
photo-induced DNA damage upon iradiation with UV light (365 nm). Spectrophotometric and mass spectrometric identification suggest that the azo-linkage in I did not dissociate during irradiation. Moreover, compound I produced DNase I footprints with the HexB DNA fragment at AT sites, as well as some other mixed sequences (5′-ATGTCG-3′), indicative of the additional role of the diazine-linkage for interaction at
一种 双霉素设计并合成了包含等排的二嗪连接的吡咯的模型。合成的关键步骤涉及成功的重氮化反应。4-氨基吡咯 衍生给 重氮 盐,它们与 N-甲基吡咯得到直接连接的二嗪化合物。酰胺是等位的二嗪吡咯 在紫外线(365 nm)照射下,我证明了光诱导的DNA损伤。分光光度法和质谱法鉴定表明I中的偶氮键在辐照期间未解离。此外,化合物I在AT位点的HexB DNA片段以及其他一些混合序列产生了DNase I足迹。5′-ATGTCG-3'),表明二嗪键对双链DNA相互作用的额外作用。