120  US 9,052,590 B2  119  -continued  n  o-r  - b  0  I  F$O  SF 0  F  F  F  F  O=S=O  I  0  0  OH  -continued  OH  0  I  F$O  SF 0  F  F  F  F  O=S=O  I  0  0  j  ~o____r\__~_h_  ~- ~o  H,J=,  9N  0  I  F$O  SF 0  F  F  F  F  O=S=O  I  0  0  $^{0 }$\  OH 