Tocris Cookson Ltd., Helmholtz Zentrum fur Infektionsforschung GmbH and University of Lübeck have described proteolysis targeting chimeras (PROTACs) comprising cereblon (CRBN) ligands covalently bonded to non-structural protein 3 (nsp3; PL-PRO) (SARS-CoV-2; COVID-19 virus) targeting moiety through linker reported to be useful for the treatment of SARS-CoV-2 infection (COVID-19).