Related Experiment Videos
Three new hyperforin analogues from Hypericum perforatum
1National Center for Drug Screening, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, People's Republic of China.
Journal of Natural Products
|February 15, 2001
Abstract:
Three new analogues of hyperforin (1), pyrano[7,28-b]hyperforin (2), (2R,3R,4S,6R)-6-methoxycarbonyl-3-methyl-4,6-di(3-methyl-2-butenyl)-2-(2-methyl-1-oxopropyl)-3-(4-methyl-3-pentenyl)cyclohexanone (3), and (2R,3R,4S,6S)-3-methyl-4,6-di(3-methyl-2-butenyl)-2-(2-methyl-1-oxopropyl)-3-(4-methyl-3-pentenyl)cyclohexanone (4), were isolated from the aerial parts of Hypericum perforatum (St. John's wort). The structures of 2-4 were elucidated by spectroscopic methods.