Molecular Design International, Inc.
improving the world, one molecule at a time

FOUNDER

William P. Purcell, Ph. D., the founder and majority shareholder of MDI, serves as its president and Chief Executive Officer.  In addition, Dr. Purcell also serves as Chief Operating Officer and Director of Research and Development.

Dr. Purcell has had a distinguished career as a Professor of Medicinal Chemistry at The University of Tennessee (Memphis) and currently serves as an adjunct member of the Graduate Faculty, Department of Chemistry, at the University of Memphis.

Dr. Purcell is a recognized expert in the field of molecular modeling and is a pioneer in Quantitative Structure-Activity Relationships (QSAR) with his book, a first in this area,entitled "Strategy of Drug Design:  A Molecular Guide to Biological Activity" (John Wiley and Sons, New York, 1973).

Dr. Purcell is co-founder of the quarterly publication QSAR Including Molecular Modeling and Applications of Computer Graphics.  He has regularly contributed articles on the application of QSAR techniques to drug design and development to scholarly publications, including Journal of Medicinal Chemistry, Journal of Pharmaceutical Sciences, and Molecular Pharmacology.

He is an inventor of a number of U.S. and foreign drug patents including "Topical Prodrugs for Treatment of Acne and Skin Disease", United States 4,677,120, patented June 30, 1987;  "Topical Tranretinoids For Treatment of Acne and skin Diseases", United States 4,885,311, patented December 5, 1989; and "9-Cis Retinoic Acid Esters and Amides and Uses Thereof", United States 5,837,728, patented November 17, 1998.

Dr. Purcell has an undergraduate degree in Chemistry from Indiana University and a Masters and Ph.D. degree in Physical Chemistry from Princeton University.

  • 35 years as Professor of Medicinal Chemistry – University of Tennessee
  • Conceived the idea of QSAR
  • Extensive experience in drug design 
  • International network of scientific collaborators

Dr. Purcell has had a distinguished career as a Professor of Medicinal Chemistry at The University of Tennessee ( Memphis ).  Dr. Purcell is a recognized expert in the field of molecular modeling and is a pioneer in Quantitative Structure-Activity Relationships (QSAR) with his book, a first in this area, entitled "Strategy of Drug Design:  A Molecular Guide To Biological Activity" (John Wiley and Sons, New York, 1973).  Dr. Purcell has an undergraduate degree in Chemistry from Indiana University and a Masters and Ph.D. degree in Physical Chemistry from Princeton University .