Using O=C(Oc1ccc([N+](=O)[O-])cc1)N1CCN(c2ccn3ncc(Br)c3n2)CC1, O[C@@H]1CCOC1 to produce O=C(O[C@@H]1CCOC1)N1CCN(c2ccn3ncc(Br)c3n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.