Using CCc1nn(C2CCCC2)c2cc(C(=O)Nc3ccc(C(=O)NOCc4ccccc4)cc3)ccc12 to produce CCc1nn(C2CCCC2)c2cc(C(=O)Nc3ccc(C(=O)NO)cc3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.