Using CC(=O)O, Cc1cc(O)c2c(c1C)C(C)(C)CCC2(C)C to produce Cc1c(C)c2c(c(O)c1C=O)C(C)(C)CCC2(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.