Showing structure for 6-{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