Studies on the Constituents of the Crude Drug "Piperis Longi Fructus." On the Alkaloids of Fruits of Piper longum L.
Keywords:
^<13>C-NMR
1983 Volume 31 Issue 10 Pages 3562-3565
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1983 Volume 31 Issue 10 Pages 3562-3565
Two new piperidine alkaloids, pipernonaline and piperundecalidine, were isolated from fruits of Piper longum L. (Piperaceae). Their structures were determined to be (2E, 8E)-N-[9-(3, 4-methylenedioxyphenyl)-2, 8-nonadienoyl]piperidine and (2E, 4E, 10E)-N-[11-(3, 4-methylenedioxyphenyl)-2, 4, 10-undecatrienoyl]piperidine, respectively, on the basis of spectral data.
