Using COc1ccc(P(=O)(c2ccccc2)c2ccc(OC)cc2)cc1 to produce O=P(c1ccccc1)(c1ccc(O)cc1)c1ccc(O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.