Using O=C(NC1CCNCC1)c1ccccc1, OCCc1ccc2ccccc2c1 to produce O=C(NC1CCN(CCc2ccc3ccccc3c2)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.