1 FMX Famoxadone 1.000 2 PQU (5s)-3-anilino-5-methyl-5-(6-phenoxypyridin-3-yl)-1,3-oxazolidine-2,4-dione 0.931 3 FDN (5s)-3-anilino-5-(2,4-difluorophenyl)-5-methyl-1,3-oxazolidine-2,4-dione 0.700