3-ethyl-1,4,6,7,12,12b-hexahydroindolo[2,3-a]quinolizine

2,3,4,9-四氢-1H-吡啶并[3,4-b]吲哚-1-酮

1-tert-butyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole

9-methyl-3,4-dihydropyrido[3,4-b]indole

Harmicine