JAK05 exhibits inhibitory activity against Helicobacter pylori , inhibits strains J63, J196 and J107 with MIC of 3-5 µg/mL. JAK05 exhibits binding affinity to H+/K+-ATPase , COX-1/2 , TNF-α and PGE2 , reveals antioxidant and anti-inflammatory activities. JAK05 exhibits anti-ulcer activity in rat ethanol-induced gastric ulcer models.