Using O=C(NCc1ccc([N+](=O)[O-])cc1)OCCCc1c[nH]cn1 to produce Nc1ccc(CNC(=O)OCCCc2c[nH]cn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.