Using COC(=O)c1ccc(N)o1, CC(=O)CC(O)=C1C(=O)OC(C)(C)OC1=O to produce COC(=O)c1ccc(-n2c(C)cc(O)cc2=O)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.