3-Hydroxy-3-methyl-2-butanone
4-(N-nitrosomethylamino)-1-(3-pyridyl)-1-butanone
4-(Cbz-amino)-2-butanone
4-Chloro-2-butanone
2-Mercapto-3-butanone
3-Bromo-3-methyl-2-butanone
(S)-3-(Boc-amino)-1-chloro-2-butanone
4-Hydroxy-3-methyl-2-butanone
4-Amino-1-(11,12-didehydrodibenz[b,f]azocin-5(6H)-yl)-1-butanone
4-hydroxy-3,3-dimethyl-2-Butanone
