Abstract
Several structure-activity data which had been analysed using molar attraction constant, partition coefficient, connectivity index, and molar refraction as a parameter for drug structure were reexamined by the use of van der Waals volume (VW). These data included actibacterial activity of penicillins, tadpole narcosis with miscellaneous compounds, inhibition of neuraminidase by dihydroisoquinolines, fungus toxicity with miscellaneous molecules, inhibition of xanthine oxidase by phenylguanines, and tuberculostatic activity of isoniazid derivatives. In all the cases, very significant correlations were found by regression analysis. These findings supported the generality of the use of VW to analyse and predict biological activity relating to molecular structure.
