Using CCOC(=O)C(C)=P(c1ccccc1)(c1ccccc1)c1ccccc1, CCC(C)(C)C1CCC(C=O)CC1 to produce CCOC(=O)C(C)=CC1CCC(C(C)(C)CC)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.