Showing structure for (1s,2r,4s,5s,6r,7z,10z,13s,14s)-5,6-dihydroxy-7,11-dimethyl-4-(prop-1-en-2-yl)-15,17,18-trioxatetracyclo[11.2.2.1²,⁶.0¹,¹⁴]octadeca-7,10-diene-9,16-dione