Using OC1c2ccccc2-c2c(-c3nc4ccncc4[nH]3)cccc21, CCN(CC)S(F)(F)F to produce FC1c2ccccc2-c2c(-c3nc4cnccc4[nH]3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.