1,2-Ethanediol,1-[(2S,4aR,4bS,7R,8aS)-2,3,4,4a,4b,5,6,7,8,8a,9,10-dodecahydro-7-hydroxy-2,4b,8,8-tetramethyl-2-phenanthrenyl]-,2-acetate, (1R)-