Chemical constituents from Piper longum / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 2891-2894, 2009.
Article
in Chinese
| WPRIM
| ID: wpr-315341
ABSTRACT
<p><b>OBJECTIVE</b>To study the chemical constituents of Piper longum.</p><p><b>METHOD</b>The whole plant of air-dried P. longum was extracted with 95% EtOH. The EtOH extract was suspended in H2O and extracted with petroleum ether, CHCl3 and n-BuOH, successively. The compounds were isolated and purified by column chromatography from the CHCl3 fraction, and identified based on spectral analyses (MS, 1H-NMR, 13C-NMR).</p><p><b>RESULT</b>Eleven compounds were isolated from P. longum, and were characterized as coumaperine (1), N-5-(4-hydroxy-3-methoxyphenyl)-2E-pentenoyl piperidine (2), piperolactam A (3), 1-[1-oxo-5 (3,4-methylenedioxyphenyl) -2E,4E-pentadienyl] -pirrolidine (4), 1-[1-oxo-5 (3,4-methylenedioxyphenyl) -2E-pentenyl] -pirrolidine (5), 1-[1-oxo-9 (3,4-methylene dioxyphenyl)-2E, 8E-nonadienyl] -pyrrolidine (6), (R)-(-) -turmerone (7), octahydro-4-hydroy-3alpha-methyl-7-methylene-alpha-(1-methylethyl)-1H-indene-1-methanol (8), (+) -aphanamol I (9), bisdemethoxycurcumin (10), demethoxycurcumin (11).</p><p><b>CONCLUSION</b>Compounds 1-11 were obtained from P. longum for the first time.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Drugs, Chinese Herbal
/
Magnetic Resonance Spectroscopy
/
Chemistry
/
Piper
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2009
Type:
Article
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