Using O=C(O)c1ccc([N+](=O)[O-])cc1[N+](=O)[O-], COCC(C)O to produce COCC(C)OC(=O)c1ccc([N+](=O)[O-])cc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.