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