Using CCCCO[PH](=O)Cc1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1 to produce CC(C)(C)c1cc(C[PH](=O)O)cc(C(C)(C)C)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.