András P. Borosy,*1 Balázs Balogh,2 and Péter Mátyus2
1IVAX Drug Research Ltd., 1325 Budapest, POB 82, Hungary
2Institute of Organic Chemistry, Semmelweis University,
1092 Budapest, Hőgyes u. 7, Hungary
Abstract
A reliable quantitative model for estimation of reactivities of Diels-Alder
reactions has been developed. A linear and a nonlinear method were used
to predict kinetic parameters. Cheaply computed descriptors (including
chemical graph indices, intermolecular binding distances, molecular surface
areas and electrostatic potentials (ESP), ESP atom value autocorrelation
functions, topological (2D) or topographical parameters) with artificial
neural networks as well as calculated IR-spectra (Sybyl’s EVA) with partial
least square regression were used to build the QSAR equations. Both sets
of descriptors are invariant to roto-translation.
*To whom correspondence should be addressed. He has recently joint Basilea Pharmaceutica Ltd (POB 3255, 65/316, 4002 Basel, Switzerland; http://www.basileapharma.com, e-mail: andras.borosy@roche.com)