Using COc1ccc(P2(=S)SP(=S)(c3ccc(OC)cc3)S2)cc1, CCOC(=O)CC(=O)CC(=O)OCC to produce CCOC(=O)CC(=S)CC(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.