Showing structure for (1s,10r)-5,7,14-trihydroxy-10-methoxy-6-(3-methylbut-2-en-1-yl)-2,17-dioxatetracyclo[8.7.0.0³,⁸.0¹¹,¹⁶]heptadeca-3(8),4,6,11,13,15-hexaen-9-one