Using COc1ccc(-c2ccc(N3CC(CNC(C)=O)OC3=O)cc2)ccc1=O, CCO to produce CCOc1ccc(-c2ccc(N3CC(CNC(C)=O)OC3=O)cc2)ccc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.