• Title/Summary/Keyword: Aerial parts

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Studies on the Constituents of the Herbs of Ajuga multiflora (I)

  • Yu, Young-Jun;Do, Jae-Chul;Jung, Keun-Young;Kwon, Soon-Youl;Son, Kun-Ho
    • Korean Journal of Pharmacognosy
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    • v.29 no.2
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    • pp.75-78
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    • 1998
  • In the course of phytochemical studies for the aerial parts of Ajuga multiflora, one flavonoid and two iridoid glycosides were isolated and identified as apigenin (1), 8-O-acetylharpagide (2) and harpagide (3) on the basis of spectroscopic evidence.

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Two Alkaloids from Ephedra aphylla growing in Egypt

  • Abdel-Kader, Maged S.;Kassem, Fahima F.;Abdallah, Rokia M.
    • Natural Product Sciences
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    • v.9 no.2
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    • pp.52-55
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    • 2003
  • The aerial parts of Ephedra aphylla afforded two alkaloids belonging to two different classes. The first alkaloid, ephedradine C, belonging to the spermine alkaloid, a group characterized by its hypotensive effect. The other alkaloid, hordenine is a phenylalkylamine alkaloid isolated for the first time from Ephedra Species. The structures were elucidated by spectroscopic methods and the assignment of some carbons in ephedradine C was achieved based on 2 D-NMR experiments.

Phytochemical Constituents of Panicum dichotomiflorum Michaux (미국개기장의 식물화학적 성분)

  • Bae, Jong Jin
    • Korean Journal of Pharmacognosy
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    • v.48 no.4
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    • pp.285-288
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    • 2017
  • A lignan and four flavonoid derivatives were isolated from the aerial parts of Panicum dichotomiflorum Michaux (Gramineae) through repeated column chromatography. Their chemical structures were identified as (-)-pinoresinol (1), tricin (2), luteolin (3), luteolin-4'-O-${\beta}$-D-glucopyranosde (4) and luteolin-7-O-${\beta}$-D-glucopyranosde (5), respectively, by spectroscopic analysis. These compounds were isolated for the first time from this plant.

Thymol Derivatives form Carpesium divaricatum

  • Zee, Ok-Pyo;Kim, Dae-Keun;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • v.21 no.5
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    • pp.618-620
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    • 1998
  • Four thymol derivatives, 2,5-dimethoxythymol (1), 2-methoxythymol isobutyrate (2), 10-isobutyloxy-8,9-epoxythymolisobutyrate (3) and 10-(2-methylbutyloxy)-8,9-eposythymolisobutyrate (4) were isolated from the aerial parts of Carpesium divaricatum. the structures were elucidated by high field 1D and 2D NMR techniques.

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Phytochemical Constitutes of Artemisia japonica ssp. littoricola

  • Kwon, Hak-Cheol;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • v.24 no.3
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    • pp.194-197
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    • 2001
  • The phytochemical study of the aerial parts of Artemisia japonica ssp. littoricola (Asteraceae) led to the isolation of two acetylenic compounds, (3R)-dehydrofalcarinol (2) and (3R)-dehydrofalcarindiol (6), two sesquiterpenes, $1{\beta}$, $6{\alpha}$-dihydroxy-4(15)-eudesmene (5) and oplodiol (8), and four phenolic compounds, eugenol (1), vanillin (3), 3'-methoxy-4'- hydroxy-trrans-cinnamaldehyde (4) and p-hydroxyacetophenone (7). Their structures were determined by chemical and spectroscopic methods.

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