(4R,5S,7R,8R,9R,10S,11R,12S,13S,14R,16S)-13,20-Epoxy-16-ethoxy-11,12-dihydroxypicras-2-en-21-oic acid methyl ester

(1R,4aS,4bR,8aS,9R,10aS)-8a-<(Benzyloxy)methyl>-9-(2-bromo-1(S)-ethoxyethoxy)-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-1,4a-dimethylphenanthren-7-one