Structure-activity relationship of lepidimoide and its analogues

Kosumi Yamada, Toyoaki Anai, Seiji Kosemura, Shosuke Yamamura, Koji Hasegawa

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The structure-activity relationship of lepidimoide and its analogues was investigated by means of the Amaranthus caudatus L. hypocotyl elongation test. In addition, the activities of α-D-galacturonic acid and L-( + )-rhamnose, which are component sugars of lepidimoide, were also studied. The carboxylic acid free type of lepidimoide showed growth-promoting activity as high as the original lepidimoide (sodium type). The acetylated compound showed considerably higher activity than lepidimoide, whereas the methylated lepidimoide did not show any activity. The hydroxylated lepidimoide without a double bond in the C-4,5 position showed lower activity. The sugar alcohol type of lepidimoide [2-O-(α-D-glucopyranosyl)-L-rhamnose] showed the highest activity in all the compounds studied. α-D-Galacturonic acid, L-( + )-rhamnose and their mixtures, which are component sugars of lepidimoide, exhibited only slight or no activity, respectively. D-Glucose and the mixture of D-glucose and L-( + )-rhamnose were also slightly active or inactive. These data suggest that the active sites in the chemical structure of the lepidimoide are the uronic acid derivative bearing an α,β-unsaturated carboxylate bonded to rhamnose via an α-glucoside linkage and a double bond in the C-4,5 position in the uronic acid.

Original languageEnglish
Pages (from-to)671-673
Number of pages3
JournalPhytochemistry
Volume41
Issue number3
Publication statusPublished - 1996

Fingerprint

rhamnose
structure-activity relationships
Structure-Activity Relationship
Rhamnose
galacturonic acid
uronic acids
Amaranthus caudatus
sugars
Uronic Acids
sugar alcohols
glucose
carboxylic acids
active sites
Sugars
chemical structure
hypocotyls
glucosides
Bearings (structural)
chemical derivatives
lepidimoide

Keywords

  • Allelopathic substance
  • Amaranthaceae
  • Amaranthus caudatus L.
  • Lepidimoide
  • Structure-activity relationship

ASJC Scopus subject areas

  • Plant Science
  • Biochemistry
  • Molecular Biology
  • Organic Chemistry
  • Drug Discovery

Cite this

Yamada, K., Anai, T., Kosemura, S., Yamamura, S., & Hasegawa, K. (1996). Structure-activity relationship of lepidimoide and its analogues. Phytochemistry, 41(3), 671-673.

Structure-activity relationship of lepidimoide and its analogues. / Yamada, Kosumi; Anai, Toyoaki; Kosemura, Seiji; Yamamura, Shosuke; Hasegawa, Koji.

In: Phytochemistry, Vol. 41, No. 3, 1996, p. 671-673.

Research output: Contribution to journalArticle

Yamada, K, Anai, T, Kosemura, S, Yamamura, S & Hasegawa, K 1996, 'Structure-activity relationship of lepidimoide and its analogues', Phytochemistry, vol. 41, no. 3, pp. 671-673.
Yamada K, Anai T, Kosemura S, Yamamura S, Hasegawa K. Structure-activity relationship of lepidimoide and its analogues. Phytochemistry. 1996;41(3):671-673.
Yamada, Kosumi ; Anai, Toyoaki ; Kosemura, Seiji ; Yamamura, Shosuke ; Hasegawa, Koji. / Structure-activity relationship of lepidimoide and its analogues. In: Phytochemistry. 1996 ; Vol. 41, No. 3. pp. 671-673.
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