Using O=C([O-])[O-], CC(C)c1ccc(CC(=O)NC(c2ccccc2)c2nnn[nH]2)cc1 to produce CC(C)c1ccc(CC(=O)NC(c2ccccc2)c2nnnn2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.