Showing structure for (1s,4r,6r,7s,12r,13s,16r,18r)-6,18-dihydroxy-8,8-dimethyl-17-methylidene-3,5-dioxapentacyclo[14.2.1.0¹,¹³.0⁴,¹².0⁷,¹²]nonadec-10-en-2-one