27802-03-5

(5bR)-5,5bα,6,6aβ,10,11,16,16b,16cα,17,19,20-Dodecahydro-16bβ-methylbisindolo[2,3:3,4]pyrido[2,1-a:2,1-g][2,7]naphthyridine-7-carboxylic acid methyl ester