Using CCCCCCCCCCCCc1ccc(S(=O)(=O)Nc2nnc(CCCCCBr)s2)cc1, CN to produce CCCCCCCCCCCCc1ccc(S(=O)(=O)Nc2nnc(CCCCCNC)s2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.