Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, CSc1ccc2cc(C)[nH]c2c1 to produce CSc1ccc2cc(C)n(C(=O)OC(C)(C)C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.