Showing structure for 5,7,8,15-tetrahydroxy-19,19-dimethyl-22-(3-methylbut-2-en-1-yl)-10-(prop-1-en-2-yl)-2,20-dioxapentacyclo[12.8.0.0³,¹².0⁴,⁹.0¹⁶,²¹]docosa-1(22),3(12),4,6,8,14,16(21),17-octaen-13-one