Using O=CNc1c(F)cc(Br)cc1[N+](=O)[O-], CSc1nc2ccc(CCl)cc2s1 to produce CSc1nc2ccc(CN(C=O)c3c(F)cc(Br)cc3[N+](=O)[O-])cc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.