Using O=c1[nH]ncc(Cl)c1Cl, COC(=O)C(Br)CC1CCCC1 to produce COC(=O)C(CC1CCCC1)n1ncc(Cl)c(Cl)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.