IUPAC:(1R,3aS,3bR,9bS,11aS)-1-ethynyl-7-methoxy-11a-methyl-1H,2H,3H,3aH,3bH,4H,5H,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-ol
IUPAC:(1R,3aS,3bR,9bS,11aS)-1-ethynyl-7-methoxy-11a-methyl-1H,2H,3H,3aH,3bH,4H,5H,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-ol