IUPAC:(1R,4E,6R,7R,17R)-4-ethylidene-7-hydroxy-6,7-dimethyl-2,9-dioxa-14-azatricyclo[9.5.1.0^{14,17}]heptadec-11-ene-3,8-dione
IUPAC:(1R,4E,6R,7R,17R)-4-ethylidene-7-hydroxy-6,7-dimethyl-2,9-dioxa-14-azatricyclo[9.5.1.0^{14,17}]heptadec-11-ene-3,8-dione