Showing structure for (1r,6r,7r,10s,11s,14s,16r,17r,18s)-11-(furan-3-yl)-18-hydroxy-6,10,17,20,20-pentamethyl-2,12,15,19-tetraoxahexacyclo[16.2.1.0¹,⁶.0⁷,¹⁷.0¹⁰,¹⁶.0¹⁴,¹⁶]henicos-4-ene-3,13,21-trione