Using CCCCCC1CCC(c2cc(SCc3ccc(C#N)cc3)c(C=O)s2)CC1 to produce CCCCCC1CCC(c2cc3sc(-c4ccc(C#N)cc4)cc3s2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.