76  US 7,851,130 B2  75  -continued  -continued  (F-21)  CF3  I  CH3  I  CH2-C-O-CH-OC2Hs  I  CF3  (F-26)  (F-25)  CF3  I  CH2-C-OH  I  CF3  (F-24)  t;[  f’’  "  f"’  CH -c-o-c-o-c-cH  2  I  I  3  CF3  CH3  (F-23)  (F-22)  (F-20)  (F-18)  (F-17)  -----fCH2-CH-t- l  CF3  CH3  CH2,I  I  c-o-c-oc2Hs  I  H  CF3  (F-16)  -----fCH2-CH-t- l  CF3  CH2  I  ’[o’()  -----fCH2-CH-t- l  CF3  0  CH3  (F-15)  CH2  I  II  I  $^{’,-O-CH2-C-o-}$1 -CH3  CF3  CH3  (F-14)  (F-13)  F  F  \  I  -----tc-q- /  \  O  /0  ’--c  /\  F  F  (F-12) 