137  US 9,958,775 B2  138  -continued  O=~~F  F  I  F  0N  \  F  O=S  II  F  u~v  O  F  Ab-209  CH3  I  -CH9  --+CH2-C+-- OAO  ~  OH  CH3  I  --+CH2-C+-- OAO  Ab-210  -CHQ  OH  0  I  :$s:  F  F  F  F  O=S=O  I  N  (–)  I  O=S=O  I  CF3  Ab-212  CH3  I  --+CH2-C+-- OAO  -CHQ  ~  OH  OMO  O  0  ¢  ~~  SO3  0  u  Ab-213  -continued 