40  US 8,852,845 B2  39  -continued  OH  I  I#  o*sof cx:b  F  F  r7’Ys~  ~  H  I  *---tCH$_{2}$-C-,--*  6=o  I  e  O~SO3  r7’Ys~  ~  I  I#  F  F  o*s~  F  F  OH  ~  s  ~OH  I  ~  F  F  I  *---tCH$_{2}$-CH t-*  r7’Y~Y’o  -continued 