Showing structure for methyl 11,16,18,23-tetrahydroxy-20-methyl-9,14-dioxo-7-(5-oxooxolan-2-yl)-6-oxahexacyclo[11.10.2.0¹,¹⁵.0³,¹².0⁵,¹⁰.0¹⁷,²²]pentacosa-3,5(10),11,15,17,19,21,24-octaene-7-carboxylate