Using COc1ccc(C=O)cc1, O=C1CCCc2cc(OCCn3ccnc3)ccc21 to produce COc1ccc(C=C2CCc3cc(OCCn4ccnc4)ccc3C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.