8,13,16,17-Tetramethyl-2,3,4,19,20-pentanor-9-hydroxy-14-protaenoic acid

(1R,3aR,5aS,11aR,11bS,13aR)-13a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-2,3,3a,5,5a,11a,11b,12,13,13a-decahydro-1H-indeno[5,4-a]anthracene-6,11-dione

(1R,3aR,5aS,11aR,11bS,13aR)-7-Hydroxy-13a-methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-2,3,3a,5,5a,11a,11b,12,13,13a-decahydro-1H-indeno[5,4-a]anthracene-6,11-dione

(1R,3aR,5aS,11aR,11bS,13aR)-10-Hydroxy-13a-methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-2,3,3a,5,5a,11a,11b,12,13,13a-decahydro-1H-indeno[5,4-a]anthracene-6,11-dione