Using OC1(c2ccccc2)CCNCC1, CN1C(=O)C2(CCCCBr)CCCc3cccc1c32 to produce CN1C(=O)C2(CCCCN3CCC(O)(c4ccccc4)CC3)CCCc3cccc1c32, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.