Using CC1CCC(=O)N(C[C@H](CC(=O)OCc2ccccc2)NC(=O)OC(C)(C)C)C1=O to produce CC1CCC(=O)N(C[C@H](CC(=O)O)NC(=O)OC(C)(C)C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.