193  US 9,052,590 B2  -continued  i:o  9N  0  I  F$O  SF O  F  F  F  F  O=S=O  I  0N  I  O=S=O  I  CF3  p  O-s0  - b $^{OH }$ OH  0  0  ~o  0 ~H,l;O  ()  N  I  F$O  SF O  F  F  F  F  O=S=O  0 I  C  I  (CF3SO2h  ~o  (J $^{194 }$ -continued  OH  p  O-O-s0  - b  ~o  C~:H;);O  0  O=S=O  el  N  I  O=S=O  I  CF3  OH 