Using Cc1nc(O)ccc1N1CCCn2c1nc1c(Cl)ccc(C(OC(F)F)C(F)(F)F)c12, O=C(O)C(F)(F)S(=O)(=O)F to produce Cc1nc(OC(F)F)ccc1N1CCCn2c1nc1c(Cl)ccc(C(OC(F)F)C(F)(F)F)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.