PMID- 23194465 OWN - NLM STAT- MEDLINE DCOM- 20130619 LR - 20211021 IS - 1029-046X (Electronic) IS - 1026-776X (Linking) VI - 24 IP - 2 DP - 2013 TI - Triple-layered QSAR studies on substituted 1,2,4-trioxanes as potential antimalarial agents: superiority of the quantitative pharmacophore-based alignment over common substructure-based alignment. PG - 119-34 LID - 10.1080/1062936X.2012.742136 [doi] AB - This study reports the utilization of three approaches - pharmacophore, CoMFA/CoMSIA and HQSAR studies - to identify the essential structural requirements in 3D chemical space for the modulation of the antimalarial activity of substituted 1,2,4-trioxanes. The superiority of quantitative pharmacophore-based alignment (QuantitativePBA) over global minima energy conformer-based alignment (GMCBA) has been reported in CoMFA and CoMSIA studies. The developed models showed good statistical significance in internal validation (q(2), group cross-validation and bootstrapping) and performed very well in predicting the antimalarial activity of test set compounds. Structural features in terms of their steric, electrostatic and hydrophobic interactions in 3D space have been found to be important for the antimalarial activity of substituted 1,2,4-trioxanes. Further, the HQSAR studies based on the same training and test set acted as an additional tool to find the sub-structural fingerprints of substituted 1,2,4-trioxanes for their antimalarial activity. Together, these studies may facilitate the design and discovery of new substituted 1,2,4-trioxanes with potent antimalarial activity. FAU - Gupta, A K AU - Gupta AK AD - Medicinal and Process Chemistry Division, C.S.I.R. - Central Drug Research Institute, Lucknow, India. FAU - Saxena, A K AU - Saxena AK LA - eng GR - U01 AI069497/AI/NIAID NIH HHS/United States PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121130 PL - England TA - SAR QSAR Environ Res JT - SAR and QSAR in environmental research JID - 9440156 RN - 0 (1,2,4-trioxane) RN - 0 (Antimalarials) RN - 0 (Heterocyclic Compounds) SB - IM MH - Antimalarials/*chemistry/*pharmacology MH - Chemistry, Pharmaceutical/*methods MH - Heterocyclic Compounds/*chemistry/*pharmacology MH - Models, Statistical MH - *Quantitative Structure-Activity Relationship EDAT- 2012/12/01 06:00 MHDA- 2013/06/20 06:00 CRDT- 2012/12/01 06:00 PHST- 2012/12/01 06:00 [entrez] PHST- 2012/12/01 06:00 [pubmed] PHST- 2013/06/20 06:00 [medline] AID - 10.1080/1062936X.2012.742136 [doi] PST - ppublish SO - SAR QSAR Environ Res. 2013;24(2):119-34. doi: 10.1080/1062936X.2012.742136. Epub 2012 Nov 30.