Using CC(=O)Nc1ccc(CCc2ccc(CC(=O)NNC(=O)OC(C)(C)C)cc2)cc1 to produce CC(=O)Nc1ccc(CCc2ccc(CC(=O)NN)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.