Using COc1ccc(NN=C(Sc2ccc(Cl)cc2)C(C)=O)cc1, CCOC(=O)CC#N to produce COc1ccc(-n2nc(Sc3ccc(Cl)cc3)c(C)c(C#N)c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.