Potent inhibition of Norwalk virus by cyclic sulfamide derivatives

Abstract A new class of compounds that exhibit anti-norovirus activity in a cell-based system and embody in their structure a cyclosulfamide scaffold has been identified. The structure of the initial hit (compound 2a , ED 50 4 μM, TD 50 50 μM) has been prospected by exploiting multiple points of diversity and generating appropriate structure–activity relationships.