Showing structure for 14-ethyl-4,19-dimethoxy-16-(methoxymethyl)-9,11-dioxa-14-azaheptacyclo[10.7.2.1²,⁵.0¹,¹³.0³,⁸.0⁸,¹².0¹⁶,²⁰]docosane-6,21-diol