US 9,323,153 B2  209  210  -continued  -continued  ~CH9 ~CH9  SO3H  SO2NH2  -+CH2-CH-,-- -+CH 2 -CH-,-- I  OH  ~---t-OH  CH2  F3C+CF3  OH  Rx  I  -+CH2-C-t--- l  O=C  I  0  q  rr  ~OH  CF3  Rx  ~CH2-6-f- OAO  ~CH3  F3C+CF3  OH  ~~  OH  HN,..._11  HN,..._11  S- S-CF3  II  II  0  0  Rx  I  -+CH2-C-t--- l  C=O  I  0  l__,,,oyy  0  0  F2  \C~F-(J  F2C)(  F3C  OH 