Using CC(=O)OC(C)=O, COc1ccc2c(c1)OC(CN)=C(c1ccccc1)O2 to produce COc1ccc2c(c1)OC(CNC(C)=O)=C(c1ccccc1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.