Using O=C1C(Oc2ccc(Cl)cc2Cl)=C(Oc2ccc(Cl)cc2Cl)C(=O)c2cc([N+](=O)[O-])ccc21, NN to produce COC1=C(OC)C(=O)c2c(N)cccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.