Using COc1ccc(CN2C(=O)C(N)C(=O)N(c3ccccc3)c3ccccc32)cc1 to produce NC1C(=O)Nc2ccccc2N(c2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.