IUPAC:(1R,4Z,6R,7R,17R)-4-ethylidene-6,7-dimethyl-3,8-dioxo-2,9-dioxa-14-azatricyclo[9.5.1.0^{14,17}]heptadec-11-en-7-yl acetate
IUPAC:(1R,4Z,6R,7R,17R)-4-ethylidene-6,7-dimethyl-3,8-dioxo-2,9-dioxa-14-azatricyclo[9.5.1.0^{14,17}]heptadec-11-en-7-yl acetate