Using COc1c(-c2ccc(C(=O)O)o2)cc(C)cc1[N+](=O)[O-] to produce COc1c(N)cc(C)cc1-c1ccc(C(=O)O)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.