Synthesis, structure–activity relationship and in vitro biological evaluation of N-arylethyl isoquinoline derivatives as Coxsackievirus B3 inhibitors
作者:Yan-Xiang Wang、Yu-Huan Li、Ying-Hong Li、Rong-Mei Gao、Hui-Qiang Wang、Yan-Xin Liu、Li-Mei Gao、Qiao-Ni Lu、Jian-Dong Jiang、Dan-Qing Song
DOI:10.1016/j.bmcl.2011.08.002
日期:2011.10
Currently, there is no approved antiviral drug for the infection caused by enteroviruses. A series of novel N-arylethyl isoquinoline derivatives defined with substituents on the ring A and C were designed, synthesized and evaluated in vitro for their activities against Coxsackievirus B3 (CVB3). The primary structure-activity relationship revealed that substituents on the ring A were not beneficial for the activity. Among these analogs synthesized, compound 7f bearing a methylenedioxy at the R(4) and R(5) positions afforded an anti-CVB3 activity and a reasonable selectivity index (SI = 26.8); furthermore, 7f exhibited a moderate activity against enterovirus 71 (EV71) with SI value of 9.0. Thus it has been selected as an anti-enteroviral lead compound for further investigation. (C) 2011 Elsevier Ltd. All rights reserved.