OH  OYOU  s/’-..../OH  -◊  I  ✓,;::;  s'  s~ecco  ~  ~  OH  OH  OH  OH  OYOU  *  *  H  O=C  C=O  I  I  0  HN’Q  I  CH3  I ✓,;::;  e  S03  OH  CC()  OH  O<::::- /’-..../OH  ,:::;,S  Q  cco  134  US 8,852,845 B2  133  -continued  -continued 