1α,3β,20αF-trihydroxy-20R,22R-witha-5,24-dienolide

2-[1-((1S,3R,8S,9S,10R,13S,14S,17S)-1,3-Bis-methoxymethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-tetrahydro-pyran

(20R)-20-formyl-1α,3β,20-trismethoxymethoxypregn-5-ene

(20R,22R)-3β-t-butyldimethylsilyloxy-1α,20-dihydroxywitha-5,24-dienolide

(20R,22R)-3β-t-butyldimethylsilyloxy-1α,20-dihydroxy-5α,6α-epoxywith-24-enolide