81072-21-1

5-[[(3S,5R,8R,9S,10S,13R,17S)-14-hydroxy-10,13-dimethyl-17-(5-oxo-2H-f uran-3-yl)-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a ]phenanthren-3-yl]oxycarbonylmethylcarbamoyl]pentanoic acid