Showing structure for (1s,3r,7r,10s,13s,17s,18r)-1-hydroxy-17-[(1s,2s)-1-hydroxy-1-[(2s)-4-methyl-5-oxo-2h-furan-2-yl]propan-2-yl]-9,9,18-trimethyl-4,8-dioxapentacyclo[11.7.0.0³,⁷.0³,¹⁰.0¹⁴,¹⁸]icos-14-en-5-one