Molecular Mechanisms of Photosensitization Induced by Drugs XII. Photochemistry and Photosensitization of Rufloxacin: An Unusual Photodegradation Path for the Antibacterials Containing a Fluoroquinolone-like Chromophore
作者:G. Condorelli、G. De Guidi、S. Giuffrida、S. Sortino、R. Chillemi、S. Sciuto
DOI:10.1111/j.1751-1097.1999.tb08136.x
日期:1999.9
Abstract The UVA irradiation of 9‐fluoro‐2,3‐dihydro‐10‐4′‐meth‐yl‐l'‐piperazinyl‐7‐oxo‐7H‐pyrido[l,2,3‐de]‐l,4‐benzo‐thiazine‐6‐carboxylic acid, rufloxacin, a fluoroquinolone antibacterial that shows photosensitizing properties toward biological substrates, leads to formation of two main steady photoproducts characterized by a decarboxylation process and an opening of the piperazinyl ring, respectively
摘要 9-fluoro-2,3-dihydro-10-4'-meth-yl-l'-piperazinyl-7-oxo-7H-pyrido[l,2,3-de]-l,4-的UVA辐照苯并噻嗪-6-羧酸,鲁氟沙星,一种氟喹诺酮类抗菌剂,对生物底物显示出光敏特性,导致形成两种主要的稳定光产物,其特征分别是脱羧过程和哌嗪环的打开。鲁氟沙星 10-哌嗪基的去质子化和 6-羧基的解离严格依赖于 pH 值。对作为生物靶标的膜测试了光敏活性。红细胞溶血和脂质过氧化被认为是光敏化的标志物。紫外线 A 诱导的损伤受氧气存在的强烈影响,它是由瞬态物种触发的,