Using COc1ccc2c(c1)C(=O)C(=O)C1=C2OC(C)(C)CC1 to produce CC1(C)CCC2=C(O1)c1ccc(O)cc1C(=O)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.