Using COC(=O)c1ccc(CBr)cc1, CC(C)(C)OP(=O)([O-])OC(C)(C)C to produce COC(=O)c1ccc(COP(=O)(OC(C)(C)C)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.