New Iridoids from the Medicinal Plant Barleria prionitis with Potent Activity against Respiratory Syncytial Virus
Journal of Natural Products1998Vol. 61(10), pp. 1295–1297
Citations Over TimeTop 10% of 1998 papers
Jian Lu Chen, Phillipe Blanc, Cheryl A. Stoddart, Mark Bogan, Edward J. Rozhon, Nigel Parkinson, Zhijun Ye, Raymond Cooper, Michael J. Balick, Weerachai Nanakorn, Michael R. Kernan
Abstract
Two new iridoid glycosides (1 and 2), together with the known compounds barlerin (3) and verbascoside (4), were isolated from Barleria prionitis. The new iridoid glycosides were determined to be 6-O-trans-p-coumaroyl-8-O-acetylshanzhiside methyl ester (1) and its cis isomer (2) by using spectroscopic, especially 2D NMR, data. A 3:1 mixture of 1 and 2 was shown to have potent in vitro activity against respiratory syncytial virus (EC50 2.46 microgram/mL, IC50 42.2 microgram/mL).
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