Using O=CC1CCN(c2cccnc2OC2CCN(c3ccc4ccccc4n3)CC2)CC1 to produce OCC1CCN(c2cccnc2OC2CCN(c3ccc4ccccc4n3)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.