1'-乙基螺[吲哚啉-3,4'-哌啶]-2-酮

1-ethyl-3H-indol-2-one

ethyl 2-oxo-1,3-dihydroindole-5-carboxylate

5-苯甲酰基氧化吲哚

ethyl 2-(2,3-dihydro-1H-indol-2-yl)acetate