Synthesis, Singlet Oxygen Photogeneration and DNA Photocleavage of Porphyrins with Nitrogen Heterocycle Tails
作者:Yun-Man Zheng、Kai Wang、Tian Li、Xiu-Lan Zhang、Zao-Yin Li
DOI:10.3390/molecules16053488
日期:——
Eight novel compounds were prepared by reaction of 5-(bromo- propoxyphenyl)-10,15,20-triphenylporphyrin with oxazole thiols, 1,3,4-oxadiazole thiols and 1,3,4-thiadiazole thiols, and their structures confirmed by UV-vis, IR, 1H-NMR, MS and elemental analysis. The assessment of indirectly measured 1O2 production rates against 5,10,15,20-tetraphenyl porphyrin (H2TPP) were described and the relative singlet oxygen production yields were:porphyrin 5 > porphyrins 1, 3, 4, 6-8, H2TPP > porphyrin 2. Porphyrin 4 and porphyrin 7 showed substantial photocleavage activities toward DNA, with over 75% cleavage observed at 40 µM. It suggested that these those porphyrins with nitrogen heterocycle tails are potential photosensitive agents.
通过5-(溴丙氧基苯基)-10,15,20-三苯基卟啉与恶唑硫醇、1,3,4-恶二唑硫醇和1,3,4-噻二唑硫醇反应制备了8个新化合物,其结构通过UV-vis、IR、1H-NMR、MS 和元素分析。描述了对5,10,15,20-四苯基卟啉(H2TPP)间接测量的1O2产率的评估,相对单线态氧产率为:卟啉5 > 卟啉1, 3, 4, 6-8, H2TPP > 卟啉2. 卟啉 4 和卟啉 7 对 DNA 表现出显着的光裂解活性,在 40 µM 时观察到超过 75% 的裂解。这表明这些带有氮杂环尾部的卟啉是潜在的光敏剂。