Using Nc1nnc(-c2ccco2)o1, Cc1cccc2c(C(=O)O)cc(-c3cccs3)nc12 to produce Cc1cccc2c(C(=O)Nc3nnc(-c4ccco4)o3)cc(-c3cccs3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.