Using COC(=O)c1nnc(-c2ccccn2)s1, BrCCCCCCc1ccccc1 to produce O=C(CCCCCCc1ccccc1)c1nnc(-c2ccccn2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.