• Title/Summary/Keyword: 1-tetracosanol

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Isolation of Acylated Sterylglycosides from the Legumes of Albizzia julibrissin (자귀나무 꼬투리로부터 Acylated Sterylglycoside의 분리)

  • Kim, Young-Hee
    • Korean Journal of Pharmacognosy
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    • v.30 no.3
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    • pp.290-294
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    • 1999
  • From the legumes of Albizzia julibrissin Durazzini (Leguminosae), a mixture of long-chain alcohols, ${\alpha}-spinasterol$, a mixture of acylated sterol glycosides and ${\alpha}-spinasteryl$ $3-O-{\beta}-D-glucoside$ were isolated. Two mixtures of long-chain alcohols and acylated sterol glycosides were characterized as 1-hexacosanol (major) and 1-tetracosanol, and $3-O-[6'-O-palmitoyl-{\beta}-D-glucosyl]-{\alpha}-spinasterol$ (major) and its 6'-O-stearoyl ester. All compounds were identified on the basis of spectral data and chemical reactions.

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Constituents from the Roots of Hemerocallis fulva (원추리 지하부의 성분 연구)

  • Kim, Ju-Sun;Son, Kun-Ho;Chang, Hyeun-Wook;Kim, Hyun-Pyo;Bae, Ki-Hwan;Kang, Sam-Sik
    • Korean Journal of Pharmacognosy
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    • v.33 no.2 s.129
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    • pp.105-109
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    • 2002
  • Besides chrysophanol and friedelin, mixtures of n-hydrocarbons [pentacosane (72.6%), heptacosane (14.6%), tetracosane (5.8%), nonacosane (4.1 %) and hexacosane (2.9%)], n-hydrocarbon alcohols [octacosanol (70.5%) and hexacosanol (29.5%)], l-monoacyl glycerols [acyl part; behenic acid (43.5%), lignoceric acid (32.4%), cerotic acid (9.3%), tricosanoic acid (8.9%), pentacosanoic acid (2.6%), octacosanoic acid (2.3%), heneicosanoic acid (1.0%)], wax esters [behenic acid (56.3%), lignoceric acid (23.0%), cerotic acid (19.8%), tricosanoic acid (4.6%), octacosanoic acid (4.0%), pentacosanoic acid (1.7%), triacontanoic acid (0.6%)/ octacosanol (33.7%), hexacosanol (21.0%), tetracosanol (15.6%), triacontanol (10.5%), docosanol (6.0%), tricosanol (6.0%), heptacosanol (4.2%), nonacosanol (3.0%)] and sterols [${\beta}-sitosterol$ (73.2%), stigmasterol (14.6%), campesterol (12.2%)] were isolated from the roots of Hemerocallis fulva. The acid : alcohol combinations of the major wax esters were $C_{48}$: 22 : 26, 24 : 24, $C_{46}$: 22 : 24, and $C_{44}$: 22 : 22. This is the first report of l-monoacyl glycerols and friedelin from this plant. All isolates were identified on the basis of spectral data and chemical reactions.