IUPAC:(1R,3aS,3bS,10S,11aS)-1-ethynyl-1-hydroxy-11a-methyl-10-(thiophen-2-yl)-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
IUPAC:(1R,3aS,3bS,10S,11aS)-1-ethynyl-1-hydroxy-11a-methyl-10-(thiophen-2-yl)-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,10H,11H,11aH-cyclopenta[a]phenanthren-7-one