Using O=C(CNCC1CCCCC1)N1CCc2ccccc2C1C1CCCCC1, OCCBr to produce O=C(CN(CCO)CC1CCCCC1)N1CCc2ccccc2C1C1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.