Using COC(=O)c1cc(OC(C)C)cc(C(=O)c2ccc(P(=O)(OC(C)C)OC(C)C)cc2)c1 to produce COC(=O)c1cc(Cc2ccc(P(=O)(OC(C)C)OC(C)C)cc2)cc(OC(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.