Showing structure for (1s,4s,5r,6r,7s,8r,11r,13s,17s,18s,19r)-4,5,8,17-tetrahydroxy-6,14,18-trimethyl-3,10-dioxapentacyclo[9.8.0.0¹,⁷.0⁴,¹⁹.0¹³,¹⁸]nonadec-14-ene-9,16-dione