Using CCn1c(=O)c2c(-c3ccccc3)n(CCSC(c3ccccc3)(c3ccccc3)c3ccccc3)cc2n(CC)c1=O to produce CCn1c(=O)c2c(-c3ccccc3)n(CCS)cc2n(CC)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.