Showing structure for methyl (1r,2s,3r,5r,10s)-2,6-dimethyl-20-oxo-8-azahexacyclo[11.5.1.1¹,⁵.0²,¹⁰.0³,⁸.0¹⁶,¹⁹]icosa-13(19),16-diene-17-carboxylate