Showing structure for methyl (1r,2s,3r,6r,13s,15r,17s)-15,16-dihydroxy-3-[(3-hydroxy-3-methylbutanoyl)oxy]-9,13-dimethyl-4,10-dioxo-11-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-5,18-dioxapentacyclo[12.5.0.0¹,⁶.0²,¹⁷.0⁸,¹³]nonadec-11-ene-17-carboxylate