Ensitrelvir (also known as S-217622; trade name Xocova) is an orally bioavailable, non-covalent, non-peptidic, SARS-CoV-2 3CL protease inhibitor (IC50=13 nM) effective against the Omicron variant. It is an antiviral drug developed by Shionogi in partnership with Hokkaido University. It became the first Japanese domestic pill to treat COVID-19, third to be regulatorally approved in Japan; in February 2022

纯度：≥98%

CAS：2647530-73-0