Using CC(C)(C)OC(=O)N1CCC2(CC1)CC(C)(O)c1ccccc12 to produce CC1=CC2(CCN(C(=O)OC(C)(C)C)CC2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.