(4R,4aS,13bR)-8-(methoxymethyl)-4,4a-dimethyl-13b-(4-methylpent-3-en-1-yl)-2,3,4,4a,5,6,8,13b-octahydro-1H-naphtho[2,1-b]carbazol-1-one

(4R,4aS,13bR)-4,4a-dimethyl-13b-(4-methylpent-3-en-1-yl)-2,3,4,4a,5,6,8,13b-octahydro-1H-naphtho[2,1-b]carbazol-1-one

(4R,4aS,13bR)-8-(methoxymethyl)-4,4a-dimethyl-4,4a,5,6,8,13b-hexahydro-1H-naphtho[2,1-b]carbazol-1-one