methyl 1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylate

(1S,3S)-2,3,4,9-四氢-1-甲基-1H-吡啶[3,4-b]吲哚-3-羧酸

ethyl (1S,3S)-1-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate

L-色氨酸