Using COC(=O)c1ccc(Cc2c[nH]c3ccc([N+](=O)[O-])cc23)c(OC)c1 to produce COc1cc(C(=O)O)ccc1Cc1c[nH]c2ccc([N+](=O)[O-])cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.