Showing structure for (1s,2s,4r,6s,11r,12s,14r,16s,17r,18s,21s)-14,18-dihydroxy-16-[(2r)-2-hydroxy-3,4-dimethyl-5-oxofuran-2-yl]-11,17,21-trimethyl-5,15-dioxahexacyclo[12.6.1.0²,¹².0⁴,⁶.0⁶,¹¹.0¹⁸,²¹]henicos-8-en-10-one