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