Molecular Recognition of the Antiretroviral Drug Abacavir: Towards the Development of a Novel Carbazole-Based Fluorosensor
作者:Krzysztof Ryszard Idzik、Piotr J. Cywinski、Charles G. Cranfield、Gerhard J. Mohr、Rainer Beckert
DOI:10.1007/s10895-010-0798-7
日期:2011.5
Due to their optical and electro-conductive attributes, carbazole derivatives are interesting materials for a large range of biosensor applications. In this study, we present the synthesis routes and fluorescence evaluation of newly designed carbazole fluorosensors that, by modification with uracil, have a special affinity for antiretroviral drugs via either Watson–Crick or Hoogsteen base pairing. To an N-octylcarbazole-uracil compound, four different groups were attached, namely thiophene, furane, ethylenedioxythiophene, and another uracil; yielding four different derivatives. Photophysical properties of these newly obtained derivatives are described, as are their interactions with the reverse transcriptase inhibitors such as abacavir, zidovudine, lamivudine and didanosine. The influence of each analyte on biosensor fluorescence was assessed on the basis of the Stern–Volmer equation and represented by Stern–Volmer constants. Consequently we have demonstrated that these structures based on carbazole, with a uracil group, may be successfully incorporated into alternative carbazole derivatives to form biosensors for the molecular recognition of antiretroviral drugs.
由于具有光学和电导特性,咔唑衍生物是应用于多种生物传感器的有趣材料。在本研究中,我们介绍了新设计的咔唑荧光传感器的合成路线和荧光评价,这些传感器通过与尿嘧啶的修饰,通过沃森-克里克或霍格施泰因碱基配对,对抗逆转录病毒药物具有特殊的亲和力。在一个 N-辛基咔唑-尿嘧啶化合物上连接了四个不同的基团,即噻吩、呋喃、亚乙基二氧噻吩和另一个尿嘧啶,产生了四种不同的衍生物。研究描述了这些新得到的衍生物的光物理特性,以及它们与阿巴卡韦、齐多夫定、拉米夫定和地达诺辛等逆转录酶抑制剂的相互作用。根据斯特恩-伏尔默方程评估了每种分析物对生物传感器荧光的影响,并用斯特恩-伏尔默常数表示。因此,我们已经证明,这些基于咔唑并带有尿嘧啶基团的结构可以成功地与其他咔唑衍生物结合,形成用于抗逆转录病毒药物分子识别的生物传感器。