Using CCOC(=O)c1ncc(C(=O)OC(C)(C)C)[nH]1, Clc1ccc(-c2cc(CBr)no2)s1 to produce CCOC(=O)c1ncc(C(=O)OC(C)(C)C)n1Cc1cc(-c2ccc(Cl)s2)on1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.