Using O=c1nc(-c2c(F)cccc2F)ss1, Nc1cc(Cl)cc(C(F)(F)F)c1Cl to produce O=C(NC(=S)c1c(F)cccc1F)Nc1cc(Cl)cc(C(F)(F)F)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.