Showing structure for (6s,8r,9r,13s,18s)-11-ethyl-4,6,16,18-tetramethoxy-13-(methoxymethyl)-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecane-8,9-diol