New Amides from Buckwheat Seeds (Fagopyrum esculentum Moench) |
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Authors: | Masahiro Koyama Yasuyuki Tsujizaki Sadao Sakamura |
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Institution: | Department of Agricultural Chemistry, Hokkaido University, Sapporo |
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Abstract: | Two new amino acid amides which yield in acid hydrolysis isomeric hydroxybenzylamines and amino acids have been isolated from the achenes of Fagopyrum esculentum Moench. One of them called BN-II is composed of salicylamine and allo-4-hydroxy-l-glutamic acid, and the other, BN-III, p-hydroxybenzylamine and l-glutamic acid. These coupled compounds link one another to form an amide respectively. Finally the structures of BN-II and BN-III were determined to be N5-(2′-hydroxybenzyl)-allo-4-hydroxy-l-glutamine and N5-(4′-hydroxybenzyl)-l-glutamine respectively from their chemical and spectrometry properties. |
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Keywords: | astigmatid mite Histiogaster sp A096 monoterpene aldehyde (4E)-dehydro-citral (2E 4E)- and (2Z 4E)-3 7-dimethyl-2 4 6-octatrienal |
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