1,2-二甲基-1H-吲哚-3-甲醛

丁炔二酸二甲酯

methyl-6 dimethoxycarbonyl-2,4 thiepino[4,5-b]indole 3,3-dioxide

dimethyl (E,E)-3,3'-(1-methyl-1H-indole-2,3-diyl)bis

1-methylindole-2,3-dicarbaldehyde