o~ ,/’,... ,,.OH  ~s"’ ......_,,,  ~SY’)  ~  OH  OYOD  *  *  H  o=c  c=o  b  Ju  6H3  I $_{# }$ 0  SO3  o~~OH  ~s  Q  cco  ~  OH  ~  °’  *  I  OH  ~OH  s  ;¢  s0  eo::o  S03- I  ~  ~  OH  -continued  -continued  168  167  US 8,852,845 B2 