2,3-diethyl-1H-indole

9-苄基-2,3,4,9-四氢-1H-咔唑

1-甲基吲哚-2-羧酸乙酯

4alpha-苄基-2,3,4,4alpha-四氢-1H-咔唑

2,3-dihydroxyphenalen-1-one