196  US 9,052,590 B2  195  ~o  O(CH2)40  0  0  I  F$O  SF O  F  F  F  F  O=S=O  El  I  C  I  (CF3S02)2  0  -continued  0  OH  0  ~  I  \_J  0  I  F$0-S  F 0  F  F  F  F  O=S=O  0  t  I  O=S=O  I  CF3  -continued 