Using Cn1ncc([N+](=O)[O-])c1N1CCN(C(=O)OC(C)(C)C)CC(C)(O)C1, CI to produce COC1(C)CN(C(=O)OC(C)(C)C)CCN(c2c([N+](=O)[O-])cnn2C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.