Using COP(=O)(CP(=O)(OC)OC)OC, O=[N+]([O-])c1ccc(CBr)cc1 to produce COP(=O)(OC)C(Cc1ccc([N+](=O)[O-])cc1)P(=O)(OC)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.