New iridoids from the medicinal plant Barleria prionitis with potent activity against respiratory syncytial virus - Chen,J.L.; Blanc,P.; Stoddart,C.A.; Bogan,M.; Rozhon,E.J.; Parkinson,N.; Ye,Z.; Cooper,R...; Balick,M.; Nanakorn,W.; Kernan,M.R. (Journal of Natural Products, 1998)