Index Ligand Name Ligand ID Canonical SMILES #Protein-Ligand Complex(es) 1 4-ethylcyclohexyl N-[(1S)-3-methyl-1-{[(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl]carbamoyl}butyl]carbamate COVPDB1271 CC[C@H]1CC[C@H](CC1)OC(=O)N[C@@H](CC(C)C)C(=O)N[C@H](C=O)C[C@@H]2CCNC2=O 1