Showing structure for (1s,2r,3r,4s,5r,6s,8r,9s,10s,13s,16s,17r,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