IUPAC:(1S,3aS,3bR,7S,9aR,11R,11aS)-1-acetyl-3a-hydroxy-7-{[(2R,4S,5R,6R)-4-methoxy-5-{[(2S,4S,5R,6R)-4-methoxy-5-{[(2S,4S,5R,6R)-4-methoxy-5-{[(2S,4R,5R,6R)-4-methoxy-6-methyl-5-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-11-yl (2E)-2-methylbut-2-enoate
IUPAC:(1S,3aS,3bR,7S,9aR,11R,11aS)-1-acetyl-3a-hydroxy-7-{[(2R,4S,5R,6R)-4-methoxy-5-{[(2S,4S,5R,6R)-4-methoxy-5-{[(2S,4S,5R,6R)-4-methoxy-5-{[(2S,4R,5R,6R)-4-methoxy-6-methyl-5-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-11-yl (2E)-2-methylbut-2-enoate