Showing structure for 16-[(5-acetyl-4,5-dihydroxy-6-methyloxan-2-yl)oxy]-3,10-dihydroxy-17-methyl-4',5'-dihydro-1'h-18-oxaspiro[pentacyclo[15.2.1.0²,¹⁵.0⁴,¹³.0⁶,¹¹]icosane-19,2'-pyrrolo[2,3-b]pyrrole]-2,4(13),6,8,10,14-hexaene-5,12-dione