QSAR study of anticoccidial activity for diverse chemical compounds: prediction and experimental assay of trans-2-(2-nitrovinyl)furan.

Abstract

In this work we report a QSAR model that discriminates between chemically heterogeneous classes of anticoccidial and non-anticoccidial compounds. For this purpose we used the Markovian Chemicals in silico Design (MARCH-INSIDE) approach J. Mol. Mod.2002, 8, 237-245; J. Mol. Mod.2003, 9, 395-407]. Linear discriminant analysis allowed us to fit the discriminant function. This function correctly classifies 86.67% of anticoccidial compounds and 96.23% of inactive compounds in the training series. Overall classification is 94.12%. We validated the model by means of an external predicting series, with 86.96% of global predictability. Remarkably, the present model is based on topological as well as configuration-dependent molecular descriptors. Therefore, the model performs timely calculations and allows discrimination between Z/E and chiral isomers. Finally, to exemplify the use of the model in practice we report the prediction and experimental assay of trans-2-(2-nitrovinyl)furan. It is notable that lesion control was 72.86% at mg/kg of body weight with respect to 60% at 125 mg/kg for amprolium (control drug). The back-projection map for this compound predicts a high level of importance for the double bond and for the nitro group in the trans position. We conclude that the MARCH-INSIDE approach enables the accurate fast track identification of anticoccidial hits. Moreover, trans-2-(2-nitrovinyl)furan seems to be a promising drug for the treatment of coccidiosis.

• Authors: Humberto González-Díaz, Ervelio Olazábal, Lourdes Santana, Eugenio Uriarte, Yenny González-Díaz, Nilo Castañedo
• Journal: Bioorganic & medicinal chemistry (Bioorg Med Chem) Vol. 15 Issue 2 Pg. 962-8 (Jan 15 2007) ISSN: 0968-0896 [Print] England
• PMID: 17081758 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Coccidiostats
• Furans
• Vinyl Compounds
• trans-2-(2-nitrovinyl)furan

Topics

• Animals
• Body Weight (drug effects)
• Chickens
• Coccidiostats (chemical synthesis, pharmacology)
• Eimeria tenella (drug effects)
• Female
• Furans (chemical synthesis, pharmacology)
• Models, Molecular
• Quantitative Structure-Activity Relationship
• Reproducibility of Results
• Vinyl Compounds (chemical synthesis, pharmacology)