Using Fc1cc(Cl)ccc1-c1cc(OC(F)F)[nH]n1, COS(=O)(=O)OC to produce Cn1nc(-c2ccc(Cl)cc2F)cc1OC(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.