Using FC(F)(F)C1C=CC=CC1(CBr)CBr, O=C(Nc1cc[nH]n1)c1c(Cl)cccc1Cl to produce O=C(Nc1ccn(Cc2ccccc2C(F)(F)F)n1)c1c(Cl)cccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.