(4S,10S)-10-acetamido-N-hydroxy-N,1,4,6a,6b,9,9,12a-octamethyl-13-oxo-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-icosahydropicene-4-carboxamide