Showing structure for methyl 2-[2-(acetyloxy)-7,9,14,16-tetrahydroxy-5-methyl-11-oxopentacyclo[10.7.2.0¹,¹⁰.0³,⁸.0¹³,¹⁸]henicosa-3,5,7,9,13,15,17,20-octaene-15-carbonyl]-3,6-dihydroxybenzoate