Showing structure for 6-[7,17-dihydroxy-6-(hydroxymethyl)-6,10,14,18-tetramethyl-13-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