Using CI, CCCCc1nc(S)[nH]c(=O)c1Cc1ccc(-c2ccccc2C#N)cc1 to produce CCCCc1nc(SC)[nH]c(=O)c1Cc1ccc(-c2ccccc2C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.