Using COC(=O)c1ccc(OC)c2[nH]c(-c3ccc([N+](=O)[O-])cc3)nc12 to produce Nc1ccc(-c2nc3c(C(=O)O)ccc(O)c3[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.