Index	Ligand Name	Ligand ID	Canonical SMILES	#Protein-Ligand Complex(es)
1	2-(2-phosphono-ethyl)-acrylic acid 4-nitro-phenyl ester	COVPDB666	OP(O)(=O)CCC(=C)C(=O)Oc1ccc(cc1)[N+]([O-])=O	1