Using CCOCC, CC(C)(C)OC(=O)NC(Cc1ccc([N+](=O)[O-])cc1)C(=O)O to produce COC(=O)C(Cc1ccc([N+](=O)[O-])cc1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.