Using O=C1NC(c2ccccc2)c2cc(Cl)ccc2N1CC(F)(F)F to produce O=c1nc(-c2ccccc2)c2cc(Cl)ccc2n1CC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.