New Ligand Discovery (IMAGE) University of Rochester Caption A critical element, found in an original ligand, was the basis for identifying new ligands from among a library of compounds at Pfizer originally developed for drug discovery. The new ligands will be used in the synthesis of new pharmaceutical drug candidates. (Me=methyl; O=oxygen; H=hydrogen; N=nitrogen) Credit Graphic by Julia Joshpe/University of Rochester Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.