Showing structure for (1r,4r,6r,7r,11s,12s,14r,17e)-17-ethylidene-4,14-dimethyl-10-methylidene-9,16-dioxo-5,8,15,18-tetraoxapentacyclo[9.6.1.0¹,¹⁴.0⁴,⁶.0⁷,¹¹]octadecan-12-yl 2-(hydroxymethyl)prop-2-enoate