Using CC(C)(C)Cl, CCOC(=O)c1ncc2[nH]c3ccccc3c2c1C to produce CCOC(=O)c1ncc2[nH]c3ccc(C(C)(C)C)cc3c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.