Showing structure for (1r,13r,18s)-24-oxo-18-(prop-1-en-2-yl)-5,7,11,14,19-pentaoxahexacyclo[11.11.0.0²,¹⁰.0⁴,⁸.0¹⁵,²³.0¹⁶,²⁰]tetracosa-2,4(8),9,15(23),16(20),21-hexaen-1-yl acetate