Using COC(=O)c1cccc(CCC(NC(=O)OC(C)(C)C)C(=O)N2CCC(C)CC2)c1 to produce CC1CCN(C(=O)C(CCc2cccc(C(=O)O)c2)NC(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.