70553-75-2

(3R,5bS,7aS,13bS,13cR,15aS)-9-(1,1-Dimethyl-2-propen-1-yl)-2,3,5b,6,7,7a,8,13,13b,13c,14,15-dodecahydro-5b-hydroxy-2,2,13b,13c-tetramethyl-4H-3,15a-epoxy-1-benzoxepino[6′,7′:6,7]indeno[1,2-b]indol-4-one