2H-Indeno[4',5':6,7]indeno[1,2-b]indol-2-one,1,3b,4,5,5a,6,11,11b,11c,12,13,13a-dodecahydro- 1,3b-dihydroxy-11b,11c-dimethyl-,(1R,3bR,- 5aS,11bS,11cR,13aS)-