Using COCCOCn1c(Cl)nc2cc([N+](=O)[O-])c(Cl)cc21, CCOC(=O)c1cn[nH]c1 to produce CCOC(=O)c1cnn(-c2nc3cc([N+](=O)[O-])c(Cl)cc3n2COCCOC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.