(3R)-2-acetyl-2,3,4,9-tetrahydro-1H-beta-carboline-3-carboxylic acid

N-[(4,7-dimethoxy-1H-indol-2-yl)carbonyl]-L-alanine

(2S)-3-methyl-2-(3-oxo-1,2-benzisothiazol-2(3H)-yl)butanoic acid

5-hydroxy-4,7-dimethyl-2H-chromen-2-one

1,3-dihydroxy-5-methyl-9H-xanthen-9-one

2-[(6-chloro-2-oxo-4-propyl-2H-chromen-7-yl)oxy]propanoic acid

3-(4,8,8-trimethyl-2-oxo-7,8-dihydro-2H,6H-pyrano[3,2-g]chromen-3-yl)propanoic acid

methyl (6-chloro-7-hydroxy-2-oxo-2H-chromen-4-yl)acetate

1-[({1-[(4-methoxyphenyl)sulfonyl]piperidin-4-yl}carbonyl)oxy]pyrrolidine-2,5-dione

3-benzyl-7-hydroxy-4-methyl-2H-chromen-2-one

4-butyl-6-chloro-7-hydroxy-2H-chromen-2-one