Showing structure for 21-(acetyloxy)-14-ethyl-2-hydroxy-6,19-dimethoxy-16-methyl-9,11-dioxa-14-azaheptacyclo[10.7.2.1²,⁵.0¹,¹³.0³,⁸.0⁸,¹².0¹⁶,²⁰]docosan-4-yl 2-methylpropanoate