Using O=C1c2ccccc2C(=O)N1C1CCNCC1, OC(CBr)C1COc2ccccc2O1 to produce O=C1c2ccccc2C(=O)N1C1CCN(CC(O)C2COc3ccccc3O2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.