10-[(3RS,4RS)-3-Ethyl-7-hydroxy-3-(4-hydroxyphenyl)thiochroman-4-yl]-2-(7,7,8,8,8-pentafluorooctyl)-decanoic Acid 、
ethyl 2-(5,5,6,6,6-pentafluorohexyl)-8-nonenoate 以to give 10-[(3RS,4RS)-3-ethyl-7-hydroxy-3-(4-hydroxyphenyl)thiochroman-4-yl]-2-(5,5,6,6,6-pentafluorohexyl)decanoic acid的产率得到10-[(3RS,4RS)-3-ethyl-7-hydroxy-3-(4-hydroxyphenyl)thiochroman-4-yl]-2-(5,5,6,6,6-pentafluorohexyl)decanoic acid