112  US 8,574,814 B2  111  ~IOB  OH  cfOMe  OH  O  OEt  0  ¢y  I#  SO3- s+  ~  ~I  ~  ~  o o  I  OH  o{OM,  ~  I  OH  0  o-0  sO 3 - s+Ph3  OH  0  OMe  OH  O  OMe  OYO  cfOM,Co~  #  ~I  -continued  -continued 