MAOB and Alzheimer disease: Ethyl ferulate (30, Figure 13) is a natural compound having an anti‐inflammatory effect on LPS‐induced acute lung injury[199] and able to protect neurons from Aβ(1‐42)‐induced oxidative stress in AD models.[200] The molecular target of 30 was unclear but Zou et al.[201] showed that 30 is a MAO B inhibitor, explaining its therapeutic effect in microglia mediated neuroinflammation.