Using O=C(n1ccnc1)n1ccnc1, O=C(O)c1ccccc1Sc1c[nH]c2ccccc12 to produce CNC(=O)c1ccccc1Sc1c[nH]c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.