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Considerable attention has been given on the search for novel anticancer drugs with respect to the disease sequelae on human health and well-being. Triazole is considered to be an attractive scaffold possessing diverse biological activities. Structural modification on the privileged structures is noted as an effective strategy towards successful design and development of novel drugs. The quantitative structure–activity relationships (QSAR) is well-known as a powerful computational tool to facilitate the discovery of potential compounds. In this study, a series of thirty-two 1,2,3-triazole derivatives ( 1 – 32 ) together with their experimentally measured cytotoxic activities against four cancer cell lines i.e., HuCCA-1, HepG2, A549 and MOLT-3 were used for QSAR analysis. Four QSAR models were successfully constructed with acceptable predictive performance affording  R  CV  ranging from 0.5958 to 0.8957 and RMSE CV  ranging from 0.2070 to 0.4526. An additional set of 64 structurally modified triazole compounds ( 1A – 1R ,  2A – 2R ,  7A – 7R  and  8A – 8R)  were constructed in silico and their predicted cytotoxic activities were obtained using the constructed QSAR models. The study suggested crucial moieties and certain properties essential for potent anticancer activity and highlighted a series of promising compounds ( 21 ,  28 ,  32 ,  1P ,  8G ,  8N  and  8Q ) for further development as novel triazole-based anticancer agents.   Electronic supplementary material  The online version of this article (doi:10.1186/s40064-015-1352-5) contains supplementary material, which is available to authorized users.

Discovery of novel 1,2,3-triazole derivatives as anticancer agents using QSAR and in silico structural modification