Using CC(=O)OC(C)=O, CCOP(=O)(OCC)C(C)(O)CSC(C)(C)C to produce CCOP(=O)(OCC)C(C)(CSC(C)(C)C)OC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.