Using CCOc1ccc2c(c1)CC1(CCC(=O)CC1)C2=O, O=C1CCC2(CC1)CCc1ccccc1C2 to produce CCOc1ccc2c(c1)CC1(CCC(=O)CC1)C21OCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.