3D-QSAR CoMFA study of benzoxazepine derivatives as mGluR5 positive allosteric modulators.

Positive allosteric modulation of the metabotropic glutamate receptor subtype 5 was studied by conducting a comparative molecular field analysis on 118 benzoxazepine derivatives. The model with the best predictive ability retained significant cross-validated correlation coefficients of q(2) = 0.58 (r(2) = 0.81) yielding a standard error of 0.20 in pEC(50) for this class of compounds. The subsequent contour maps highlight the structural features pertinent to the bioactivity values of benzoxazepines.