Using O=P(Cl)(Cl)Cl, CCOC(=O)C1C=Nc2c(cccc2[N+](=O)[O-])C1=O to produce CCOC(=O)c1cnc2c([N+](=O)[O-])cccc2c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.