Using CC1(C)CCC(C(=O)N2CCC[C@H]2C(=O)O)C1SC(=O)c1ccccc1 to produce CC1(C)CCC(C(=O)N2CCC[C@H]2C(=O)O)C1S, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.