Using COc1ccccc1N(CC1OCCO1)C(=O)c1ccc(CN2C(=O)c3ccccc3C2=O)cc1 to produce COc1ccccc1N(CC=O)C(=O)c1ccc(CN2C(=O)c3ccccc3C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.