Lp-PLA2-IN-5 is a potent inhibitor of lipoprotein-associated phospholipase A2 (Lp-PLA2). Lp-PLA2 previously known as platelet- activating factor acetylhydrolase (PAF-AH), is a phospholipase A2 enzyme involved in hydrolysis of lipoprotein lipids or phospholipids. Lp-PLA2-IN-5 has the potential for the research of diseases associated with the activity of Lp-PLA2, for example atherosclerosis, Alzheimer's disease (extracted from patent WO2021228159A1, compound 32).