Scientist/Sr. Associate Scientist
R. W. Johnson Pharmaceutical Research Institute
Spring House, Pa
Designed safe, robust and selective processes for a broad range of compounds in all phases of drug development.-Developed a resolution/racemization procedure for a key intermediate. Described procedure in an article entitled “Crystallization-induced Asymmetric Transformation of p-Chlorophenylalanine Methyl Ester”, published in Tetrahedron: Asymmetry, 1998, 9, 3247.-Wrote and submitted the manuscript “1,1,2,3,3-Pentaisopropylguanidine” to Encyclopedia of Reagents for Organic Synthesis. Paquette, L.A., Ed.; John Wiley & Sons, New York, 1995.-Contributed to the development of a large-scale liquid phase peptide synthesis; performed critical couplings with minimal protection. Team received the Johnson & Johnson Award for “Development of Azaline B”.-Participated in the synthesis of KL4, a 21 amino acid protein; prepared gram quantities of the end fragment, intermediates and diastereomer in support of analytical development.-Played a key role in the development of a second-generation synthesis of a sulfamate derivative, resulting in a 50% reduction in the cost to prepare drug substance. Prepared two separate reports on the new and old processes and transferred methodology for scale-up. Organized and presented a complete overview of the project at the Annual Chemical Process Development Meeting. Co-authored process patent. Received the J&J Achievement Award for “Development of Topiramate Process” and the Optimus Award, a peer nominated/committee selected company award, for significant achievement in the development of the process.-Encountered a novel Carroll rearrangement involving acetoacetoxy p-quinols; exploration of rearrangement led to a complementary method for the preparation of phenylacetones. Co-authored and presented “The Carroll Rearrangement: A Facile Entry into Phenylacetone Derivatives” at local and national meetings.-Actively participated on Laboratory Safety Committee and conducted laboratory safety inspections.