Showing structure for {11-ethyl-2,8,9-trihydroxy-4,6,16,18-tetramethoxy-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecan-13-yl}methyl 2-(3-methyl-2,5-dioxopyrrolidin-1-yl)benzoate