Ethyl 5-formyl-1H-indole-2-carboxylate

3-甲基吲哚-2-甲酸乙酯

tert-butyl 2-formylindole-1-carboxylate

2-(4,5-dihydro-1H-imidazol-2-yl)-1-ethyl-2,3-dihydroindole

1-甲基吲哚-2-羧酸乙酯