Bioactive Pyrrolo[2,1-f][1,2,4]triazines: Synthesis, Molecular Docking, In Vitro Cytotoxicity Assay and Antiviral Studies

Chemistry Pub Date : 2023-11-21 DOI:10.3390/chemistry5040171
N. N. Mochulskaya, S. Kotovskaya, I. Butorin, M. Varaksin, V. Charushin, V. Rusinov, Y. L. Esaulkova, A. Slita, Polina A Ilyina, V. Zarubaev
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Abstract

A series of 2,4-disubstituted pyrrolo[2,1-f][1,2,4]triazines containing both aryl and thienyl substituents were synthesized by exploiting the 1,3-cycloaddition reaction of N(1)-ethyl-1,2,4-triazinium tetrafluoroborates with dimethyl acetylenedicarboxylate. The antiviral activity of the synthesized compounds against influenza virus strain A/Puerto Rico/8/34 (H1N1) was studied in experiments on Madin-Darby canine kidney (MDCK) cell culture. Among the pyrrolo[2,1-f][1,2,4]triazine derivatives, compounds with low toxicity and high antiviral activity were identified. Dimethyl 4-(4-methoxyphenyl)-7-methyl-2-p-tolylpyrrolo[2,1-f][1,2,4]triazine-5,6-dicarboxylate was found to demonstrate the best antiviral activity (IC50 4 µg/mL and selectivity index 188). Based on the results of in vitro tests and molecular docking studies performed, a plausible mechanism of action for these compounds was suggested to involve inhibition of neuraminidase.
生物活性吡咯并[2,1-f][1,2,4]三嗪:合成、分子对接、体外细胞毒性测定和抗病毒研究
利用 N(1)-乙基-1,2,4-三嗪四氟硼酸盐与乙炔二甲酸二甲酯的 1,3-氰基加成反应,合成了一系列含有芳基和噻吩基取代基的 2,4-二取代吡咯并[2,1-f][1,2,4]三嗪。在麦丁-达比犬肾(MDCK)细胞培养实验中,研究了合成化合物对流感病毒株 A/Puerto Rico/8/34 (H1N1) 的抗病毒活性。在吡咯并[2,1-f][1,2,4]三嗪衍生物中,发现了毒性低、抗病毒活性高的化合物。研究发现,4-(4-甲氧基苯基)-7-甲基-2-对甲苯基吡咯并[2,1-f][1,2,4]三嗪-5,6-二羧酸二甲酯的抗病毒活性最佳(IC50 4 µg/mL,选择性指数 188)。根据体外测试和分子对接研究的结果,这些化合物的作用机制可能涉及抑制神经氨酸酶。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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