Showing structure for (1r,2r,6s,7s,8r,10s,11s,12r,14s,16s,17r,18r)-6,7-dihydroxy-8-(hydroxymethyl)-4,18-dimethyl-5-oxo-14-phenyl-16-(prop-1-en-2-yl)-9,13,15,19-tetraoxahexacyclo[12.4.1.0¹,¹¹.0²,⁶.0⁸,¹⁰.0¹²,¹⁶]nonadec-3-en-17-yl (2e)-but-2-enoate