The constituents from the stems of Piper cambodianum

• Main Authors: Ta-wei Wu, 吳大維
• Other Authors: Tian-shung Wu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/06842749987594375679

碩士 === 國立成功大學 === 化學系碩博士班 === 97 === A phytochemical investigation of Piper cambodianum has led to the isolation of thirty-night compounds, cepharadione A, noraristolodione, cepharanone B, piperolactam A , aristolactam A II, piperolactam C, aristolactam F II, 5-(hydroxymethyl)pyrrole-2-carbo- xylate, 5-(methoxymethyl)-1H-pyrrole-2-carbaldehyde, 4-[2-formyl-5-(methoxymethyl)- 1H-pyrrol-1-yl] butanoate, 4-[formyl-5-(hydroxymethyl)-1H-pyrrol-1-yl] butanoate, futoamide, N-p-coumaroyltyramine, N-(4-hydroxyphenyl)ethylene cinnamamide, N-cis-feruloyl tyramine, N-trans-feruloyl tyramine, riparin I, N-[2- (2-hydro-4,5-di- methoxyphenyl)-ethyl]benzamide, N-cinnamoylpyrrolidine, pyridine-3,5-dicarboxamide, 5’-deoxyuridine, eupomatenoid-5, eupomatenoid-7, β-sitosterol, stigmasterol, daucosterol, vanillic acid, syringic acid, methyl syringate, sesamin, luvangetin, pipercamboside, 3-(4-hydroxy-3-methoxyphenyl)propane-1,2-diol, 2,3-dihydroxy-1- (4-hydroxy-3- methoxyphenyl)propan-1-one, 5-hydroxy-7-methoxy-2-pentylchromone, secoiso- lariciresinol, 6-hydroxyphthalide, 5-(hydroxymethyl)furan-2-carbaldehyde and dihydroxychavicol. Among them, pipercamboside was new compound, and 6-hydroxyphthalide was firstly isolated from natural source. Their structures were characterized by comprehensive analyses of their 1D, 2D-NMR and mass spectral data, and also by chemical transformation studies.