IUPAC:(1S,2R,3R,6R,7R,10S,11R)-2-ethyl-6-methyl-10-[(2S,4S)-4-methyl-5-oxooxolan-2-yl]-4-oxa-11-azatricyclo[9.4.1.0^{3,7}]hexadecane-5,8,16-trione
IUPAC:(1S,2R,3R,6R,7R,10S,11R)-2-ethyl-6-methyl-10-[(2S,4S)-4-methyl-5-oxooxolan-2-yl]-4-oxa-11-azatricyclo[9.4.1.0^{3,7}]hexadecane-5,8,16-trione