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

7-bromo-1,3-dihydroxy-9H-xanthen-9-one

8,10-dihydroxy-7H-benzo[c]xanthen-7-one

5,7-dihydroxy-2-phenyl-4H-chromen-4-one

柯因

[(3-benzyl-4,7-dimethyl-2-oxo-2H-chromen-5-yl)oxy]acetic acid

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

2-(2,4-dioxo-1,4-dihydroquinazolin-3(2H)-yl)acetohydrazide

(2S)-({[(4-methyl-2-oxo-2H-chromen-7-yl)oxy]acetyl}amino)(phenyl)acetic acid

N-{[1-(phenylsulfonyl)piperidin-3-yl]carbonyl}-L-valine

7-hydroxy-3-pentanoyl-2H-chromen-2-one

6,7-dihydroxy-2,3-dihydrocyclopenta[c]chromen-4(1H)-one