34327-25-8 (1S,11S)-1,3,4,5,6,7,9,9aβ-Octahydro-2α,11-dihydroxy-1β-methyl-10-methylene-13-oxo-4aα,1-(epoxymethano)-4bβ,7β-ethano-2H-fluorene-9β-carboxylic acid 22785-18-8 (6aS,6bS,10R,10aR,11aS,11bR)-10,11b-dimethyl-5,6,6a,6b,7,8,10a,11,11a,11b-decahydro-1H-benzo[a]fluorene-3,9(2H,10H)-dione