Using ClCc1cccnc1, Sc1nnc(-c2ccc3nc[nH]c3c2)o1 to produce c1cncc(CSc2nnc(-c3ccc4[nH]cnc4c3)o2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.