Paul is a Director within Discovery Chemistry at Pfizer in La Jolla, California. Paul has over 20 years experience in the pharmaceutical industry. He joined Pfizer in 2004, after working with Lexicon Pharmaceuticals as Director of Process Chemistry for 8 years. Paul received his Ph.D. from Sheffield University, where he worked with Professor Istvan Marko. He completed postdoctoral studies at both Exeter University with Professor Stan Roberts, and at the Scripps Research Institute with Professor Barry Sharpless. He is a member of the American Chemical Society, and is an inventor or author of more than 70 patents applications or papers.