Showing structure for (1r,7r,8r,17s,18r,20s,21s)-4,6,7,11,12,21-hexahydroxy-18-(hydroxymethyl)-3,15-dioxo-2,16,19,22-tetraoxapentacyclo[15.3.1.1⁷,¹⁰.0⁴,⁸.0⁹,¹⁴]docosa-9,11,13-trien-20-yl 3,4,5-trihydroxybenzoate