Using COc1cnc(-c2nn(Cc3c(F)cc(Br)cc3F)c3ccccc23)nc1Nc1ccncc1, OCC(F)(F)F to produce COc1cnc(-c2nn(Cc3c(F)cc(Br)cc3OCC(F)(F)F)c3ccccc23)nc1Nc1ccncc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.