Using CC(C)OP(=O)(OC(C)C)C(Cc1cc(CBr)cc(CBr)c1)P(=O)(OC(C)C)OC(C)C, CC([O-])=S to produce CC(=O)SCc1cc(CSC(C)=O)cc(CC(P(=O)(OC(C)C)OC(C)C)P(=O)(OC(C)C)OC(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.