Unfortunately the 31st Symposium on Medicinal chemistry in Eastern England to beheld at Hatfield on 30 April 2020 has been postponed until November. The Symposium on Medicinal Chemistry in Eastern England, known colloquially as the “Hatfield MedChem” meeting, is a highly successful, long-standing, one-day meeting which runs annually. The scientific program will comprise presentations showcasing medicinal chemistry case studies from tools to candidates, across a range of modalities, therapeutic areas and target classes, as well as covering more general topics from the forefront of drug discovery of relevance to medicinal chemists.