Showing structure for (1r,15r,23s)-4,9,11,15-tetrahydroxy-22-oxahexacyclo[10.10.2.0²,⁷.0⁸,²⁴.0¹⁵,²³.0¹⁶,²¹]tetracosa-2,4,6,8,10,12(24),16,18,20-nonaen-13-one