5-[(dimethylamino)methyl]-1H-indol-4-ol

1-amino-3-(1H-indol-4-yloxy)propan-2-ol

5-甲氧基-2,3,4,9-四氢-1H-吡啶并[3,4-b]吲哚

4-羟基吲哚-3-羧酸

4-乙氧基吲哚