Using COc1cc(CCOP(=O)(OCc2ccccc2)OCc2ccccc2)ccc1OC(C)=O to produce COc1cc(CCOP(=O)(OCc2ccccc2)OCc2ccccc2)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.