Using CCc1cc2c(c(Cl)c1CC)CCN(C(=O)OC(C)(C)C)C[C@@]2(C(N)=O)c1ccc(O)cc1 to produce CCc1cc2c(c(Cl)c1CC)CCNC[C@@]2(C(N)=O)c1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.