(5S,6R,15S)-(7E,9E,11E,13E)-5,6-O-carbonyl lipoxin A4 ethyl ester

4-[(4S,5R)-2-Oxo-5-((1E,3E)-5-oxo-penta-1,3-dienyl)-[1,3]dioxolan-4-yl]-butyric acid ethyl ester