Using CCOC(=O)c1cnn(Cc2nc(C(=O)O)cs2)c1, On1nnc2ccccc21 to produce CCOC(=O)c1cnn(Cc2nc(C(N)=O)cs2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.