Using C=C(CCC(=O)OCc1ccccc1)C(=O)OCc1ccccc1, CCCC[PH](=O)O to produce O=C(CCC(C[PH](=O)O)C(=O)OCc1ccccc1)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.