4,4'-[[[[(1R)-1,2,3,4,4a,9,10,10aα-Octahydro-1β,4aβ-dimethyl-7-(1-methylethyl)phenanthren]-1-yl]methyl]imino]bis[2-butanone]

[1R-(1alpha,4abeta,10aalpha)]-4,4'-[[[1,2,3,4,4a,9,10,10a-octahydro-7-isopropyl-1,4a-dimethylphenanthren-1-yl]methyl]imino]bisbutan-2-one