Using CC(C)(C)OC(=O)N[C@@H]1CC[C@H](O)C(C)(C)C1 to produce CC(C)(C)OC(=O)N[C@@H]1CCC(=O)C(C)(C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.