Using O=C(O)c1cn(C2CC2)c2cc(F)c(F)cc2c1=O, O=[N+]([O-])c1cccc2c1CNC2 to produce O=C(O)c1cn(C2CC2)c2cc(N3Cc4cccc([N+](=O)[O-])c4C3)c(F)cc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.