Using OCc1ccc(-n2ccnc2)cc1, COC1(c2cccc(O)c2)CCOCC1 to produce COC1(c2cccc(OCc3ccc(-n4ccnc4)cc3)c2)CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.