Using CC(C)(C)OC(=O)C[P+](c1ccccc1)(c1ccccc1)c1ccccc1, COC(=O)c1ccc(C=O)[nH]1 to produce COC(=O)c1cc(C=O)c[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.