OUN58101, also known as MDK-8101, also known as BI-D, is a RSV L-protein inhibitor. OUN58101 was first reported in patnet WO 2005042530. This product has no formal name at the moment. For the convenience of communication, a temporal code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page: https: www.medkoo.com page naming).