Using COCCOCCOc1cc2ncnc(Cl)c2cc1OC, Oc1ccc2cccnc2c1 to produce COCCOCCOc1cc2ncnc(Oc3ccc4cccnc4c3)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.