Using Nc1cccnc1, O=C(O)c1cccc2cc(C(F)(F)F)c(Cl)nc12 to produce O=C(Nc1cccnc1)c1cccc2cc(C(F)(F)F)c(Cl)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.