1 5ER (2z)-2-hydroxy-4-(1h-indol-3-yl)-4-oxobut-2-enoic acid 1.000 2 3IB 3-indolebutyric acid 0.882 3 HT7 (3s)-3-amino-4-(1h-indol-3-yl)butanoic acid 0.833 4 9BF 4-(1~{H}-indol-3-yl)butan-2-one 0.824 5 Q5M 4-(naphthalen-1-yl)-4-oxobutanoic acid 0.789 6 MIB (3e)-4-(1-methyl-1h-indol-3-yl)but-3-en-2-one 0.778 7 C0V (2z)-2-hydroxy-4-(naphthalen-2-yl)-4-oxobut-2-enoic acid 0.750 8 HTR Beta-hydroxytryptophane 0.737 9 UX8 (2~{S},3~{R})-2-azanyl-3-(1~{H}-indol-3-yl)-3-oxidanyl-propanoic acid 0.737 10 IOP Indolylpropionic acid 0.722 11 TPL Tryptophanol 0.722 12 V9X 3-(1h-indol-3-yl)propanamide 0.722 13 XI7 2-4-dioxo-4-phenylbutanoic acid 0.722 14 5RN 1-(1~{H}-indol-3-yl)ethanone 0.706 15 5EQ (2z)-2-hydroxy-4-(1h-indol-5-yl)-4-oxobut-2-enoic acid 0.700 16 70H (3e)-4-(8-methylnaphthalen-1-yl)but-3-enoic acid 0.700