3,3a,5,5-tetramethyl-3-(phenylthio)-4,7-bis((trimethylsilyl)oxy)-3,3a,3b,4,5,6,6a,7-octahydro-2H-cyclopenta[a]pentalen-2-one

rac-(1aR,1bR,1cR,2R,4aS,5S,5aS,6aS)-2-hydroxy-1a,1b,3,3-tetramethyldecahydro-2H-cyclopenta[5,6]pentaleno[1,2-b]oxiren-5-yl formate

Formic acid (3R,3aR,3bR,4R,6aS,7S,7aS)-3-hydroxy-2,2,3b,4-tetramethyl-5-oxo-decahydro-cyclopenta[a]pentalen-7-yl ester