2-氧代哌啶-3-羧酸

6-氯-2,3,4,9-四氢-1H-吡啶并[3,4-b]吲哚-1-酮

吴茱萸次碱

1,4,5,6-四氢吡啶-3-羧酸乙酯

2,3,4,9-四氢-1H-吡啶并[3,4-b]吲哚-1-酮