Showing structure for (11r,12r,15r,24s,25s)-12-hydroxy-18,19,20-trimethoxy-11,12,24,25-tetramethyl-4,6,9,14-tetraoxapentacyclo[13.7.3.0³,⁷.0⁸,²².0¹⁶,²¹]pentacosa-1(22),2,7,16(21),17,19-hexaen-13-one