Showing structure for 7-(furan-3-yl)-18-(2-methoxy-2-oxoethyl)-1,6,17,17-tetramethyl-9,19-dioxo-3,8,13-trioxahexacyclo[13.3.1.0²,⁴.0²,¹².0⁶,¹¹.0¹²,¹⁴]nonadecan-16-yl 2-methylbutanoate