211053-51-9

2H-Oxepino[3,2-a]xanthene-9,12-dione,10- [(1S,3R)-1,3-dimethyl-2-oxopentyl]-1,3,4,5a,- 6,7,7a,13,13a,13b-decahydro-3-hydroxy-4,4,- 7a,13b-tetramethyl-,(3S,5aR,7aS,13aR,13bR)-