Using O=Cc1cccnc1Nc1ccccc1, COc1cc(C(C)=O)cc(OC)c1OC to produce COc1cc(C(=O)C=Cc2cccnc2Nc2ccccc2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.