Showing structure for methyl 8,13,15,20,22-pentahydroxy-24-methyl-11,18,27-trioxo-6-oxaheptacyclo[15.10.2.0¹,¹⁹.0³,¹⁶.0⁵,¹⁴.0⁷,¹².0²¹,²⁶]nonacosa-3(16),4,12,14,19,21,23,25,28-nonaene-7-carboxylate