label: (R)-N,9-dimethyl-N-(4-(methylamino)-4-oxobutyl)-3-(tetrahydro-2H-pyran-4-yl)-2,3,4,9-tetrahydro-1H-carbazole-6-carboxamide
label_lc: (r)-n,9-dimethyl-n-(4-(methylamino)-4-oxobutyl)-3-(tetrahydro-2h-pyran-4-yl)-2,3,4,9-tetrahydro-1h-carbazole-6-carboxamide