Showing structure for (1s,4ar,12as)-3-acetyl-4a-{[(2s,4r,5r,6r)-4-{[(2s,4r,5s,6r)-4-{[(2s,4s,5r,6r)-4,5-dihydroxy-4,6-dimethyloxan-2-yl]oxy}-5-hydroxy-6-methyloxan-2-yl]oxy}-5-hydroxy-6-methyloxan-2-yl]oxy}-4,6,7-trihydroxy-1-methoxy-12,12a-dihydro-1h-tetracene-2,5-dione