3-amino-6-ethyl-2-hydrazinylpyrimidin-4-one

6-ethyl-4-hydroxy-3-propanoylpyran-2-one

8-丙基依托度酸

2-(1-ethyl-7-fluoro-8-methyl-4,9-dihydro-3H-pyrano[3,4-b]indol-1-yl)acetic acid

2-(7-chloro-1-ethyl-8-methyl-4,9-dihydro-3H-pyrano[3,4-b]indol-1-yl)acetic acid