Using COCOc1cc(OCOC)c(C(C)=O)c(Oc2ccc([N+](=O)[O-])cc2)c1, CCOC(=O)C(=O)OCC to produce CCOC(=O)C(=O)CC(=O)c1c(OCOC)cc(OCOC)cc1Oc1ccc([N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.