2-methoxy-2,5,7,8-tetramethyl-3,4-dihydrochromen-6-ol

1,6-dimethylindole

3,4,6,7,12,12b-hexahydro-1H-indolo[2,3-a]quinolizin-2-one

1-(3-benzoyl-7-methylindolizin-1-yl)ethanone

decane-2,5-dione