ethyl 1,9-dimethylpyrido[3,4-b]indole-3-carboxylate

(2S)-2-(benzylamino)-3-(1H-indol-3-yl)propanoic acid

(S)-2,3,4,9-四氢-1H-吡啶[3,4-b]吲哚-3-羧酸

吲哚-3-乙酸

3-(3-吲哚基)-2-氧代丙酸