Showing structure for 6-[(1r,3r,5r,7s,10s,13s,14r,18r)-7,13-dihydroxy-6,6,10,14,18-pentamethyl-17-oxo-2-oxapentacyclo[9.7.0.0¹,³.0⁵,¹⁰.0¹⁴,¹⁸]octadeca-11,15-dien-15-yl]-6-hydroxy-2-methyl-4-oxoheptanoic acid