PF-3644022 is a potent freely reversible ATP-competitive compound that inhibits MK2 activity (Ki = 3 nM) with good selectivity when profiled against 200 human kinases. PF-3644022 is a benzothiophene inhibitor of mitogen-activated protein kinase-activated protein kinase 2 inhibits tumor necrosis factor α production and has oral anti-inflammatory efficacy in acute and chronic models of inflammation.