Using O=C(O)CC1(C(=O)O)CCOc2ccc([N+](=O)[O-])cc21 to produce Nc1ccc2c(c1)C(CC(=O)O)(C(=O)O)CCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.