• Title/Summary/Keyword: 1-octen-3-ol $3-O-{\beta}-D-xylopyranosyl(1{\rightarrow}6)-{\beta}-D-glucopyranoside$

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A New Alkyl Alcohol Glycoside from Chrysanthemi Flos (감국(Chrysanthemi Flos)의 새로운 알킬알콜배당체 성분에 관한 연구)

  • Jung, Keun-Young;Oh, Sei-Ryang;Kim, Chun-Suk;Kim, Jung-Hee;Lee, Hyeong-Kyu
    • Korean Journal of Pharmacognosy
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    • v.27 no.1
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    • pp.15-19
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    • 1996
  • In the course of phytochemical studies of Chrysanthermi Flos(Chrysanthemum indicum L., Compositae), two compounds were isolated by repeated column chromatography. Compound 1 is identified as adenosine on the basis of spectroscopic means and comparison with an authentic standard. Compound 2 is determined to be a new alkyl alcohol glycoside, 1-octen-3-ol $3-O-{\beta}-D-xylopyranosyl(1{\rightarrow} 6)-{\beta}-D-glucopyranoside$ on the spectroscopic evidence. Compounds 1 and 2 are reported for the first time from this plant.

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Isolation of Melanin Biosynthesis Inhibitory Compounds from the Seeds of Plantago asiatica L. (차전자(車前子)로부터 멜라닌 생성 억제물질의 분리)

  • Oh, Joon-Seok;Lee, Jong-Gu;Jung, Hee-Wook;Choi, Ji-Young;Choi, Eun-Hyang;Kim, Dong-Chun;Kim, Jeong-Ah;Son, Jong-Keun;Lee, Seung-Ho
    • Korean Journal of Pharmacognosy
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    • v.38 no.4
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    • pp.376-381
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    • 2007
  • Seven compounds were isolated from the MeOH extract of the seeds of Plantago asiatica L. and their structures were identified as ${\beta}-sitosterol$ (1), (24R)-6${\beta}$-hydroxy-24-ethyl-cholest-4-en-3-one (2), acteoside (3), geniposidic acid (4), 1-octen-3-ol 3-O-${\beta}$-D-xylopyranosyl$(1{\rightarrow}6)-{\beta}-D-glucopyranoside$ (5), plantainoside D (6) and plantamajoside (7) on the spectroscopic analysis. Among them, $(24R)-6{\beta}$-hydroxy-24-ethyl-cholest-4-en-3-one (2) and 1-octen-3-ol 3-O-${\beta}$-D-xylopyranosyl ($1{\rightarrow}6)-{\beta}-D-glucopyranoside$ (5) were first isolated from this plant. Among them, geniposidic acid (4) showed the most potent inhibitory effect on melanogenesis, with inhibition rate of 41%.