Showing structure for methyl (1r,2s,3r,6r,8s,9s,13s,14r,15r,16s,17s)-3-(acetyloxy)-15,16-dihydroxy-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