Dipendra Bhandari Contact BHANDARID1@ORNL.GOV All Publications Characterization of an unusual SARS-CoV-2 main protease natural variant exhibiting resistance to nirmatrelvir and ensitrelvir Influence of steric and electronic properties of P2 groups on covalent inhibitor binding to SARS-CoV-2 main protease Design, synthesis, evaluation and X-ray structural studies of potent HIV-1 protease inhibitors containing substituted oxaspirocyclic carbamates as the P2 ligands