1969: Bedford College, University of London, UK, BSc (First Class)1972: University College, University of London, UK, PhD, with Professors F. Sondheimer and P.J. Garratt1972: Columbia University, New York, NY, Research Associate with Professor T.J. Katz1973: Harvard University, Cambridge, MA, Research Associate with Professor E.J. Corey1976: University of Pennsylvania, Assistant Professor of Chemistry1980: University of Pennsylvania, Associate Professor of Chemistry1981: University of Pennsylvania, Professor of Chemistry1988: University of Pennsylvania, Rhodes-Thompson Professor of Chemistry1989 to date: The Scripps Research Institute, La Jolla, California, Department Chairman, and Darlene Shiley Chair in Chemistry1989 to date: University of California at San Diego, La Jolla, California, Professor of Chemistry1996 to date: The Skaggs Institute for Chemical Biology, TSRI Aline W. and L.S. Skaggs Professor of Chemical Biology