Using CC(C)(C)OC(=O)N1CCC(=O)CC1, Cc1cc(C)c(N)c(C)c1 to produce Cc1cc(C)c(NC2CCN(C(=O)OC(C)(C)C)CC2)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.