Using COC(=O)c1cccc(N2C(=O)CN(c3ccc(C(C)C)cc3)C2=O)c1 to produce CC(C)c1ccc(N2CC(=O)N(c3cccc(C(=O)O)c3)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.