Using CCOC(=O)C(COS(C)(=O)=O)(COS(C)(=O)=O)C(=O)OCC, SCc1ccccc1 to produce CCOC(=O)C(CSCc1ccccc1)CSCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.