Design, synthesis and biological evaluation of N2,N4-disubstituted-1,1,3-trioxo-2H,4H-pyrrolo[1,2-b][1,2,4,6]thiatriazine derivatives as HIV-1 NNRTIs
作者:Wenmin Chen、Peng Zhan、Erik De Clercq、Christophe Pannecouque、Jan Balzarini、Xin Jiang、Xinyong Liu
DOI:10.1016/j.bmc.2013.09.009
日期:2013.11
A series of N-2,N-4-disubstituted-1,1,3-trioxo-2H,4H-pyrrolo[1,2-b][1,2,4,6]thiatriazine derivatives (PTTDs) was designed and synthesized by a facile route. The biological assay results showed that five most potent compounds displayed inhibitory activity against HIV-1 at low micromolar concentrations (EC50 = 5.1-8.9 mu M). Structure-activity relationship analysis indicated that N-2-(3-halogenated-benzyl) analogues were more potent than N-2-(unsubstituted-benzyl) analogues. The N-4-substitutions contributed to the antiviral activity in the following order: 2-/3-cyano substituted benzyl > 2-/3-halogenated benzyl > non-substituted benzyl > 4-halogenated benzyl. Docking studies of the representative compound revealed the binding conformation of these compounds and provided critical insights for the further development of PTTD analogues. (C) 2013 Elsevier Ltd. All rights reserved.