Using O=C(Cl)Cc1ccc(OCc2ccc3ccccc3n2)cc1, COC(=O)C1(O)CC1 to produce COC(=O)C1(OC(=O)Cc2ccc(OCc3ccc4ccccc4n3)cc2)C=C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.