Using c1ccc(N2CCNCC2)cc1, O=C(CCBr)NCC(=O)c1ccccc1 to produce O=C(CCN1CCN(c2ccccc2)CC1)NCC(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.