Using Cc1[nH]nc(O)c1-c1cccc2ccccc12, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1n[nH]c(C)c1-c1cccc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.