Using CC(C)(C)OC(=O)N1CC[C@@H]2CC3(C[C@@H]2C1)OCCO3 to produce CC(C)(C)OC(=O)N1CC[C@@H]2CC(=O)C[C@@H]2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.