Using CSc1nc(-c2cc3ccccc3[nH]2)c2c(N)nccn12 to produce Nc1nccn2c(=S)[nH]c(-c3cc4ccccc4[nH]3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.