Using CCOP(=O)(Cc1ccc(NC(=O)c2cc(=O)c3ccccc3o2)cc1)OCC to produce O=C(Nc1ccc(CP(=O)(O)O)cc1)c1cc(=O)c2ccccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.