(6aR,9R)-N-[(2S)-1-hydroxybutan-2-yl]-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-carboxamide; (6aR,9R)-N-[(1S)-1-(Hydroxymethyl)propyl]-7-methyl- 4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide