DISTRIBUTION OF UNSATURATED ALIPHATIC ACID AMIDES IN JAPANESE ZANTHOXYLUM SPECIES

Article abstract of DOI:10.1016/0031-9422(82)80128-3

Seven species and two varieties of Zanthoxylum in Japan were investigated for unsaturated aliphatic acid amides.In addition to the known amides α-sanshooel, γ-sanshooel and hydroxy-γ-sanshooel, a new compound, hydroxy-α-sanshooel, was isolated and established by chemical and spectroscopic evidence.The compounds, corresponding to hydroxyl derivatives of the amides in the barks, commonly existed in the pericarps of all collected materials.Japanese Zanthoxylum species were divided chemotaxonomically into two taxa.These taxa differ from the two assigned on the basis of botanical classification.Key Word Index - Zanthoxylum planispinum; Z. piperitum; Z. piperitum f. inerme.Z. piperitum f. brevispinosum; Z. beecheyanum; Z. aliantholides; Z. inerme; Z. fauriei; Z. schinifolium; Rutaceae; α-sanshooel; hydroxy-α-sanshooel; γ-sanshooel; hydroxy-γ-sanshooel; unsaturated aliphatic acid amide; pungent principle; 13C NMR; chemotaxonomy; Fagara.