Using CCOC(=O)c1ccc(Br)cc1, CCO[PH](=O)CP(=O)(OCC)OCC to produce CCOC(=O)c1ccc(P(=O)(CP(=O)(OCC)OCC)OCC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.