Showing structure for (1s,13r,14s,17s,19r)-10-hydroxy-5,7-dimethoxy-1,14,18,18-tetramethyl-2,6-dioxapentacyclo[11.8.0.0³,¹¹.0⁴,⁸.0¹⁴,¹⁹]henicosa-3(11),4(8),9-trien-17-yl acetate