IUPAC:methyl (1R,2S,3R,5R,6S,8S,10S,16R,17R)-2,6-dimethyl-8,20-dioxo-8lambda5-azahexacyclo[11.5.1.1^{1,5}.0^{2,10}.0^{3,8}.0^{16,19}]icos-13(19)-ene-17-carboxylate
IUPAC:methyl (1R,2S,3R,5R,6S,8S,10S,16R,17R)-2,6-dimethyl-8,20-dioxo-8lambda5-azahexacyclo[11.5.1.1^{1,5}.0^{2,10}.0^{3,8}.0^{16,19}]icos-13(19)-ene-17-carboxylate