Orcinol gentiobioside
Oresbiusin A (Compound 6) is a plant secondary metabolite. Oresbiusin A can be isolated from Origanum dictamnus L. Oresbiusin A has antimicrobial activity against Gram-negative bacterium, such as Acinetobacter hemolyticus, Empedobacter brevis and Pseudomonas aeruginosa with a MIC of 0.236 μg/mL for Acinetobacter hemolyticus[1].