Index Ligand Name Ligand ID Canonical SMILES #Protein-Ligand Complex(es) 1 ethyl (2Z,4S)-4-[(N-{[(cyclobutylmethyl)amino](oxo)acetyl}-L-phenylalanyl)amino]-5-[(3S)-2-oxopyrrolidin-3-yl]pent-2-enoate COVPDB260 O=C1NCC[C@H]1C[C@@H](/C=C/C(=O)OCC)NC(=O)[C@H](Cc2ccccc2)NC(=O)C(=O)NCC3CCC3 1