Using O=C1OC(c2ccccc2)(c2ccccc2)C2CN(Cc3ccccc3)CCN12 to produce O=C1OC(c2ccccc2)(c2ccccc2)C2CNCCN12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.