methyl 9-(4-methoxybenzyl)-2-(methoxymethyl)-2,4,4-trimethyl-1-oxo-2,3,4,9-tetrahydro-1H-carbazole-6-carboxylate

5,5-dimethyl-N-(1-picolinoylpyrrolidin-3-yl)-2,4,5,10-tetrahydropyrazolo[3,4-a]carbazole-7-carboxamide

(S)-5,5-dimethyl-N-(tetrahydrofuran-3-yl)-2,4,5,10-tetrahydropyrazolo[3,4-a]carbazole-7-carboxamide