1 5PE (2r)-2-(4-hydroxy-3-methoxyphenyl)-3-(pyridin-2-ylmethyl)-1,3-thiazolidin-4-one 1.000 2 X55 (2r)-3-benzyl-2-(2-bromo-4-hydroxy-5-methoxyphenyl)-1,3-thiazolidin-4-one 0.875