Cleistanthol

(-)-Cleistanthol

(5S,10R)-13-Methyl-17-nortotara-8,11,13,15-tetrene-2α,3α,12-triol

(2S)-8-Vinyl-1,2,3,4,4a,9,10,10aβ-octahydro-1,1,4aα,7-tetramethyl-2α,3α,6-phenanthrenetriol