GPR18 inhibiting amauromine and the novel triterpene glycoside auxarthonoside from the sponge-derived fungus Auxarthron reticulatum - Nazir, M; Harms, H; Loef, I; Kehraus, S; El Maddah, F; Arslan, I; Rempel, V; Müller, C E; König, G M (Planta Med, 2015)