9-benzyl-3-methyl-9H-carbazole-1,4-dione

2-吲哚甲酸

吲哚-2-羧酸甲酯

4,5-dihydro-3-indol-2-ylcarbonyl-4-methylfuran-2-one

1-甲氧基-3-甲基-9h-咔唑