1 GZV (2z)-4-(2,6-difluoro-3-methylphenyl)-2-hydroxy-4-oxobut-2-enoic acid 1.000 2 GXG 4-(2,6-difluorophenyl)-2,4-dioxobutanoic acid 0.941 3 I93 4-(2-chloro-6-fluoro-3-methylphenyl)-2,4-dioxobutanoic acid 0.889 4 EQA (2z)-4-(2-fluorophenyl)-2-hydroxy-4-oxobut-2-enoic acid 0.882 5 XI7 2-4-dioxo-4-phenylbutanoic acid 0.824 6 040 4-(2-methylphenyl)-2,4-dioxobutanoic acid 0.778 7 043 4-(3-bromophenyl)-2,4-dioxobutanoic acid 0.778 8 3EE 4-(2-aminophenyl)-2,4-dioxobutanoic acid 0.778 9 BQ4 (2z)-2-hydroxy-4-(3-hydroxyphenyl)-4-oxobut-2-enoic acid 0.778 10 BVS (2z)-2-hydroxy-4-(4-methylphenyl)-4-oxobut-2-enoic acid 0.778 11 I92 4-(2-bromophenyl)-2,4-dioxobutanoic acid 0.778 12 Y9E 2-oxo-4-phenylbutanoic acid 0.765 13 D1Y (2z)-4-(2-chloro-4-hydroxyphenyl)-2-hydroxy-4-oxobut-2-enoic acid 0.737 14 E9S (2z)-4-(2-bromo-3-hydroxyphenyl)-2-hydroxy-4-oxobut-2-enoic acid 0.737 15 EHV (2s)-4-(2-bromo-6-methylphenyl)-2-hydroxy-4-oxobutanoic acid 0.737 16 ENG (2z)-4-(2-bromo-4-hydroxyphenyl)-2-hydroxy-4-oxobut-2-enoic acid 0.737 17 GXD 4-(2,6-dichlorophenyl)-2,4-dioxobutanoic acid 0.737 18 01B (2s,3r)-3-amino-2-hydroxy-4-phenylbutanoic acid 0.722 19 KRN (4r)-4-hydroxy-4-(2-hydroxyphenyl)butanoic acid 0.722 20 KY1 4-(2-aminophenyl)-4-oxobutanoic acid 0.722 21 TOH (3e)-4-(2-hydroxyphenyl)-2-oxobut-3-enoic acid 0.722 22 VP3 4-(4-fluorophenyl)-4-oxobutanoic acid 0.722 23 W1N (3s)-3-amino-4-(2-fluorophenyl)butanoic acid 0.722 24 CLT 4-phenyl-butanoic acid 0.706 25 5EQ (2z)-2-hydroxy-4-(1h-indol-5-yl)-4-oxobut-2-enoic acid 0.700 26 GXM (2z)-2-hydroxy-4-(2-nitrophenyl)-4-oxobut-2-enoic acid 0.700