Using CC(C)[N-]C(C)C, CCOC(=O)C1CCN(C(=O)OC(C)(C)C)CC1 to produce CCOC(=O)C1(CC)CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.