Molecular modeling studies on 11H-dibenz[b,e]azepine and dibenz[b,f][1,4]oxazepine derivatives as potent agonists of the human TRPA1 receptor

Molecules. 2010 Dec 17;15(12):9364-79. doi: 10.3390/molecules15129364.

Abstract

A computational strategy based on comparative molecular fields analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) was performed on a series of the 11H-dibenz[b,e]azepine and dibenz[b,f][1,4]oxazepine derivatives as potent agonists of the human TRPA1 receptor. The CoMFA and CoMSIA models resulting from a 21 molecule training set gave r²(cv) values of 0.631 and 0.542 and r² values of 0.986 and 0.981, respectively. The statistically significant models were validated by a test set of five compounds with predictive r²(pred). values of 0.967 and 0.981 for CoMFA and CoMSIA, respectively. A systemic external validation was also performed on the established models. The information obtained from 3D counter maps could facilitate the design of more potent human TRPA1 receptor agonists.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Azepines / chemistry*
  • Calcium Channels / chemistry*
  • Computer Simulation*
  • Humans
  • Models, Molecular*
  • Nerve Tissue Proteins / agonists*
  • Nerve Tissue Proteins / chemistry*
  • TRPA1 Cation Channel
  • Transient Receptor Potential Channels / agonists*
  • Transient Receptor Potential Channels / chemistry*

Substances

  • Azepines
  • Calcium Channels
  • Nerve Tissue Proteins
  • TRPA1 Cation Channel
  • TRPA1 protein, human
  • Transient Receptor Potential Channels