Using COC(=O)[C@@H]1[C@H](CC2(C)OCCO2)C1(C)C to produce CC1(C[C@H]2[C@@H](C(=O)O)C2(C)C)OCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.