Using CC(C)(C)OC(=O)N1CCC(c2c[nH]c3ccccc23)CC1, CI to produce Cn1cc(C2CCN(C(=O)OC(C)(C)C)CC2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.