Showing structure for (1r,2r,5r,9r,13r,14r,19r,22r,26r)-5,19-diphenyl-4,12,18,25-tetraoxaheptacyclo[13.6.5.0¹,¹⁷.0²,¹⁴.0³,⁸.0⁹,¹³.0²²,²⁶]hexacosa-3(8),16-diene-7,11,21,24-tetrone