Showing structure for (1r,2s,3s,4s,5r,6r,8s,9r,10r,13r,16s,17s,18s)-11-ethyl-6,16,18-trimethoxy-13-(methoxymethyl)-11-azahexacyclo[7.7.2.1²,⁵.0¹,¹⁰.0³,⁸.0¹³,¹⁷]nonadecane-4,8,9-triol