1-(1-methylidene-4,9-dihydro-3H-pyrido[3,4-b]indol-2-yl)ethanone

methyl 6-oxo-6h-indolo[3,2,1-de][1,5]naphthyridine-5-carboxylate

DL-胡秃子碱

(S)-1-methyl-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole