Using COC(=O)C(Cc1c(C)cc(C(N)=O)cc1C)NC(=O)OC(C)(C)C to produce Cc1cc(C(N)=O)cc(C)c1CC(NC(=O)OC(C)(C)C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.