Using CI, CC(C)(C)OC(=O)N1C(C(C)(C)O)COC1(C)C to produce COC(C)(C)C1COC(C)(C)N1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.