Using CCOC(=O)CC[C@@H](C(=O)OCC)n1sc2cc([N+](=O)[O-])ccc2c1=O to produce CCOC(=O)CC[C@@H](C(=O)OCC)n1sc2cc(N)ccc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.