Using O=Cc1cc(F)c(F)c(F)c1, Oc1cnc(C(F)(F)F)nc1 to produce O=Cc1cc(F)c(Oc2cnc(C(F)(F)F)nc2)c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.