• Title/Summary/Keyword: phenolic glycoside

Search Result 45, Processing Time 0.04 seconds

Chemical Investigation of the Constitutive Phenolics of Rosa arabica; the Structure of a New Dimeric Phenolic Glycoside

  • Souleman, Ahmed M.A.;El-Mousallamy, Amani M.D.
    • Natural Product Sciences
    • /
    • v.6 no.2
    • /
    • pp.82-85
    • /
    • 2000
  • The aqueous ethanolic whole plant extract of Rosa arabica was found to contain the new natural dimeric phenolic compound, ellagic acid 3,3'-dimethyl ether $4-O-{\alpha}-rhamnopyranoside$, 9, along with ten known phenolic metabolites (1-8, 10 and 11). Structures of all compounds (1-11) were established by routine methods of analysis and confirmed by FAB-MS, $^1H\;and\;^{13}C$ NMR spectral analysis.

  • PDF

A New Phenolic Glycoside from Mussaenda pubescens

  • Zhao, Weimin;Xu, Rensheng;Qin, Guowei;Wu, Houming;Jiang, Shaokai;Yang, Genjin
    • Natural Product Sciences
    • /
    • v.2 no.1
    • /
    • pp.14-18
    • /
    • 1996
  • A new phenolic glycoside named mussaendoside L (1), along with four known iridoidal glycosides $(2{\sim}5)$ were isolated from the aerial parts of Mussaenda pubescens Ait.f. Their structures were elucidated on the basis of chemical and spectroscopic evidence.

  • PDF

Ophiopojaponin D, a New Phenylpropanoid Glycoside from Ophiopogon japonicus Ker-Gawl

  • Dai Hao Fu;Mei Wen Li
    • Archives of Pharmacal Research
    • /
    • v.28 no.11
    • /
    • pp.1236-1238
    • /
    • 2005
  • A new phenolic glycoside, ophiopojaponin D (1), together with two known compounds, was isolated from the tubers of a famous traditional Chinese herb-Ophiopogon japonicus Ker-Gawl. The spectroscopic and chemical data revealed their structures to be 3-tetradecyloxy-4­hydroxy-allylbenzene-4-O-$\alpha$-L-rhamnopyranosyl (1$\rightarrow$6)-$\beta$-D-glucopyranoside (1), 3, 4-dihy-droxy-allylbenzene-4-O-$\alpha$-L-rhamnopyranosyl (1$\rightarrow$6)-$\beta$-D-glucopyranoside (2) and L-pyro­glutamic acid (3).

Isolation and Identification of Adenosine in Fresh Ginseng (수삼에서의 아데노신 분리 및 동정)

  • Lee, Mee-Kyoung;Lim, Sun-Uk;Park, Hoon
    • Journal of Ginseng Research
    • /
    • v.14 no.3
    • /
    • pp.437-441
    • /
    • 1990
  • The investigation of UV absorbing compounds in saponin fraction of Pnm.1. Kiairnk root was carried out by thin layer chromatography, semipreparative HVLC. l3C, 1H-NMR, mass spectrometry and chemical characteristics in searching plant for growth regulatony substances such as phenolic glycoside. Drying of fresh ginseng at 15 $^{\circ}C$ decreased not only number but also size of UV absorbing sports on TLC. One of the relatively large spots in fresh ginseng was isolated and identified as adenosine, which is subjected for growth stimulatory activity Detection of phenolic glycosides failed in dried root bolt was highly probable in fresh ginseng even with the insufficient amount of sample.

  • PDF

Phenolic Constituents from the Aerial Parts of Artemisia stolonifera

  • Lee, Kang-Ro;Hong, Seung-Woo;Kwak, Jong-Hwan;Pyo, Suhkneung;Jee, Ok-Pyo
    • Archives of Pharmacal Research
    • /
    • v.19 no.3
    • /
    • pp.231-234
    • /
    • 1996
  • Two acetophenone glycosides, 2, 4-dihydroxy-6-methoxy acetophenone $4-O-\beta-D-glucopyranoside(I)$, 2, 4, 6-trihydroxy acetophenone $2-O-\beta-D-glucopyranoside(II)$, together with coniferin(III) were isolated from the aerial parts of Artemisia stolonifera (Max.) Kom. The structures of the compounds were elucidated on the basis of spectroscopic evidence. Compound IIwas also confirmed as a new phenolic glycoside from natural sources. In addition, compound I induced cytostatic activity of macrophasges, while compounds II and III did not.

  • PDF

Pharmacological activities and the constituents of the leaves of Hedera rhombea Bean (II) : On the constituents of the leaves

  • Lee, Ihn-Rhan;Lee, Min-Suk;Choi, Kyoung-Ah;Seo, Eun-Kyoung
    • Archives of Pharmacal Research
    • /
    • v.16 no.4
    • /
    • pp.331-335
    • /
    • 1993
  • Three phenolic compounds and a dammarane glycoside were isolated from the leaves of Hedera rhombea Bean (Araliaceae). Their structures were characterized as rutin, caffeic acid, 3.5-dicaffeoyl quinic acid and kizuta saponin $K_5$ by chemical and spectral analysis.

  • PDF

Changes in Flavonol Glycoside Contents of Orostachys Japonicus a. Berger according to Cultivation Conditions (재배 조건에 따른 바위솔의 Flavonol Glycoside 함량 변화)

  • Jang, Sang-Hun;Kang, Dong-Min;Kang, Jin-Ho;Park, Jong-Cheol;Lee, Sang-Gyeong;Shin, Sung-Chul
    • Korean Journal of Medicinal Crop Science
    • /
    • v.13 no.6
    • /
    • pp.250-254
    • /
    • 2005
  • The contents of flavonol glycosides, $kaempferol-3-O-{\beta}-D-glucoside$(1), $kaempferol-3-O-{\beta}-D-glactoside$ (2), $kaempferol-3-O-{\beta}-D-rhamnoside$ (3), $quercetin-3-O-{\beta}-D-glucoside$ (4) and $quercetin-3-O-{\alpha}-D-rhamnoside$ (5) in the houseleeks controlled by night-break, day-length control, and temperature during overwintering were determined to be compared with those in wild one. The contents of the flavonol glycosides 1-5 in the houseleeks were decreased roughly with warming during overwintering, and increased with longer light duration under the day-length control experiments. While warming functioned negatively on the production of the flavonol glycosides in the houseleek, longer light irradiation did positively during overwintering.

Phenolic Compound from Lepisorus thunbergianus (일엽초의 페놀성 물질)

  • Lee, Min-Won
    • Korean Journal of Pharmacognosy
    • /
    • v.29 no.2
    • /
    • pp.142-145
    • /
    • 1998
  • Two phenylpropanoids and one flavan 3-ol were isolated from Lepisorus thunbergianus (Polypodiaceae, fern), which is used as folkmedicine. Phenylpropanoids were identified as caffeic acid and chlorogenic acid, and flavan 3-ol was elucidated as (-)-epicatechin 7-O-${\beta}$-D-glucoside by physico-chemical and spectral evidences (HMQC, NOESY).

  • PDF