Phenylethanoids in the Herb ofPlantago lanceolataand Inhibitory Effect on Arachidonic Acid-Induced Mouse Ear Edema1

Abstract
The five phenylethanoids, acteoside (1), cistanoside F (2), lavandulifolioside (3), plantamajoside (4) and isoacteoside (5) were isolated from the herb of Plantago lanceolata L. (Plantaginaceae). Compounds 1, the major phenylethanoid in the herb of P. lanceolata L., and 4, the major phenylethanoid in the herb of. P. asiatica L., showed inhibitory effects on arachidonic acid-induced mouse ear edema.