3,8-dimethyl-3-(4-methylpent-3-en-1-yl)-3,11-dihydropyrano[3,2-a]carbazole

6-methyl-9-tosyl-9H-carbazol-2-ol

N-tosylmahanimbicine

2,7-dimethyl-2-(4-methylpent-3-en-1-yl)-2,10-dihydropyrano[2,3-b]carbazole