Using CSCCl, C[C@@H](S)[C@](O)(Cn1cncn1)c1ccc(F)cc1F to produce CSCS[C@H](C)[C@](O)(Cn1cncn1)c1ccc(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.