Synthesis and photocytotoxic activity of [1,2,3]triazolo[4,5-h][1,6]naphthyridines and [1,3]oxazolo[5,4-h][1,6]naphthyridines
作者:Ilaria Frasson、Virginia Spanò、Simona Di Martino、Matteo Nadai、Filippo Doria、Barbara Parrino、Anna Carbone、Stella Maria Cascioferro、Patrizia Diana、Girolamo Cirrincione、Mauro Freccero、Paola Barraja、Sara N. Richter、Alessandra Montalbano
DOI:10.1016/j.ejmech.2018.10.071
日期:2019.1
[1,2,3]Triazolo[4,5-h][1,6]naphthyridines and [1,3]oxazolo[5,4-h][1,6]naphthyridines were synthesized with the aim to investigate their photocytotoxic activity. Upon irradiation, oxazolo-naphtapyridines induced light-dependent cell death at nanomolar/low micromolar concentrations (EC50 0.01–6.59 μM). The most photocytotoxic derivative showed very high selectivity and photocytotoxicity indexes (SI = 72–86
合成[1,2,3]三唑并[4,5- h ] [1,6]萘啶和[1,3]恶唑并[5,4- h ] [1,6]萘并吡啶旨在研究其光细胞毒性活动。辐照后,恶唑-萘吡啶在纳摩尔/低微摩尔浓度(EC 50 0.01–6.59μM)下诱导光依赖性细胞死亡。最photocytotoxic衍生物表现出非常高的选择性和photocytotoxicity指数(SI = 72-86,PTI> 5000),以及三重激发态具有特别长的寿命(18.0微秒)和高摩尔吸光系数(29781±为180 M -1厘米- 1在λ最大315 nm)。光诱导产生的ROS迅速地在肿瘤细胞中选择性地诱导了不可抑制的凋亡过程,线粒体和溶酶体的参与。总而言之,这些结果表明,对于生物应用而言,活性最高的化合物可作为有前途的单线态氧敏化剂。