Synonyms: Cyclopenta[7,8]phenanthro[10a,1-b]furan,3'H-cholestano[5,4-b]furan deriv.; Cyclopenta[7,8]phenanthro[10a,1-b]furan,9-(1,5-dimethylhexyl)-3a,4,5,6,6a,6b,7,8,8a,9,10,11,11a,11b,12,13-hexadecahydro-6a,8a-dimethyl-,[6aR-[6aa,6bb,8aa,9a(R*),11ab,11ba]]-; [6aR-[6aa,6bb,8aa,9a(R*),11ab,11ba]]-9-(1,5-Dimethylhexyl)-3a,4,5,6,6a,6b,7,8,8a,9,10,11,11a,11b,12,13-hexadecahydro-6a,8a-dimethylcyclopenta[7,8]phenanthro[10a,1-b]furan