Using O=C(O)c1cc(F)c(F)cc1Nc1cccc(F)c1, NOCc1ccccc1 to produce O=C(NOCc1ccccc1)c1cc(F)c(F)cc1Nc1cccc(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.