Using CC1C(C)(C)C2=C(C(=O)CCC2)C1(C)C, CCOC=O to produce CC1C(C)(C)C2=C(C(=O)C(C=O)CC2)C1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.