Using OB(O)c1cccc(N2CCCC2)c1, CC1(C(=O)c2c[nH]c3ncc(Br)nc23)CCCCC1 to produce CC1(C(=O)c2c[nH]c3ncc(-c4cccc(N5CCCC5)c4)nc23)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.