Tannins and Flavonoids from the Erodium cicutarium Herb

2005 ◽  
Vol 60 (5) ◽  
pp. 555-560 ◽  
Author(s):  
Izabela Fecka ◽  
Wojciech Cisowski
Keyword(s):  
Phenolic Acids ◽  
2D Nmr ◽  
Methyl Gallate ◽  
Esi Ms ◽  
Chemical Structures ◽  
Erodium Cicutarium ◽  
Aerial Parts ◽  
Acid Methyl

A new depside, erodiol, was isolated and identified from the aerial parts of Erodium cicutarium (Geraniaceae), together with essential compounds such as: geraniin, didehydrogeraniin, corilagin, (-) 3-O-galloylshikimic acid, methyl gallate 3-O-β -D-glucopyranoside, rutin, hyperin, quercetin 3- O-(6”-O-galloyl)-β -D-galactopyranoside, isoquercitrin and simple phenolic acids. Their chemical structures were elucidated by means of spectroscopic (ESI MS, HRESI MS, 1D and 2D NMR) evidence.

Flavon- and Flavonolglycosides from Achillea pannonica Scheele

2001 ◽  
Vol 56 (7-8) ◽  
pp. 521-525 ◽  
Author(s):  
Denata Kasaj ◽  
Liselotte Krenn ◽  
Sonja Prinz ◽  
Antje Hüfner ◽  
Shi Shan Yuc ◽  
...  
Keyword(s):  
Methanolic Extract ◽  
2D Nmr ◽  
Flavonoid Glycosides ◽  
Spectroscopic Methods ◽  
Esi Ms ◽  
Aerial Parts ◽  
Nmr Techniques ◽  
Chemotaxonomic Study ◽  
First Time ◽  
C Nmr

The detailed investigation of a methanolic extract of aerial parts of Achillea pannonica SCHEELE. within a chemotaxonomic study led to the isolation of 6 flavonoid glycosides. Besides rutin, apigenin-7-O-glucopyranoside, luteolin-7-O-glucopyranoside, apigenin-7-O-rutinoside and acacetin-7-O-rutinoside, an unusual flavondiglucoside was isolated. Its structure was established by UV, 1HNMR and 13C NMR spectroscopic methods including 2D-NMR techniques and ESI-MS as luteolin-7,4′-O-β-diglucoside. This substance is reported for the first time in the genus Achillea. Chemotaxonomic aspects are discussed briefly

scholarly journals Ellagitannins from Geranium potentillaefolium and G. bellum

2010 ◽  
Vol 5 (4) ◽  
pp. 1934578X1000500
Author(s):  
Juan A. Gayosso-De-Lucio ◽  
J. Martín Torres-Valencia ◽  
Carlos M. Cerda-García-Rojas ◽  
Pedro Joseph-Nathan
Keyword(s):  
Nmr Spectroscopy ◽  
Gallic Acid ◽  
Ellagic Acid ◽  
Therapeutic Dose ◽  
2D Nmr ◽  
Published Data ◽  
Methyl Gallate ◽  
2D Nmr Spectroscopy ◽  
Plant Materials ◽  
Aerial Parts

The aerial parts of Geranium potentillaefoium afforded geraniin (1), corilagin (2), gallic acid (4), methyl gallate (6), methyl brevifolincarboxylate (7), quercetin, quercetin 3- O-β-D-glucopyranoside, quercetin 3- O-β-D-[6″- O-galloyl)glucopyranoside, kaempferol, β-sitosterol 3- O-β-D-glucopyranoside and β-sitosterol, while the aerial parts of G. bellum gave the same compounds in addition to kaempferol 3- O-β-D-glucopyranoside, isolated instead of kaempferol. The substances were identified by 1D and 2D NMR spectroscopy in comparison with published data. The water decoction preparations from air-dried plant materials (2.5 g) contain ca. 4.6 % of the ellagitannin 1, envisaging that when such decoction is ingested (250 mL), a therapeutic dose of ca. 36 mg of the antitumor ellagic acid (3) may be incorporated into the organism.

scholarly journals Three New Iridoid Glucoside Salts from Hedyotis tenelliflora Growing in Vietnam

2013 ◽  
Vol 8 (11) ◽  
pp. 1934578X1300801
Author(s):  
Luu H. Van Long ◽  
Vo Thi Nga ◽  
Nguyen Phuc Dam ◽  
Mai Anh Hung ◽  
Tu Duc Dung ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Methyl Ester ◽  
Acid Methyl Ester ◽  
2D Nmr ◽  
Iridoid Glucoside ◽  
2D Nmr Spectroscopy ◽  
Sodium Salts ◽  
Chemical Structures ◽  
Acid Methyl ◽  
Acid Sodium Salt

Three new sodium salts of iridoid acids, deacetylasperulosidic acid sodium salt (1), teneoside D (2), and teneoside E (3) were isolated from the leaves of Hedyotis tenelliflora Blume (Rubiaceae), together with seven known iridoids, 6α-hydroxygeniposide (4), 6β-hydroxygeniposide (5), 6- O-methyldeacetylasperulosidic acid methyl ester (6), 6- O-methylscandoside methyl ester (7), 6α-methoxygeniposidic acid (8), daphylloside (9), and mollugoside methyl ester (10). Their chemical structures were elucidated by 1D and 2D NMR spectroscopy, as well as HR-ESI-MS analysis.

scholarly journals New Acetylated Terpenoids from Sponge Rhabdastrella providentiae Inhibit NO Production in LPS Stimulated BV2 Cells

2018 ◽  
Vol 13 (6) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Duong Thi Dung ◽  
Pham Hai Yen ◽  
Nguyen Xuan Nhiem ◽  
Tran Hong Quang ◽  
Bui Huu Tai ◽  
...  
Keyword(s):  
2D Nmr ◽  
No Production ◽  
Esi Ms ◽  
Chemical Structures ◽  
Bv2 Cells

Three new acetylated terpenoids, rhabdaprovidines A-C (1-3), were isolated from the Vietnamese sponge Rhabdastrella providentiae. Their chemical structures were established by HR-ESI-MS, 1D and 2D-NMR experiments. These compounds share 6,6,5-tricyclic nucleus of isomalabaricane-type triterpene, the specific secondary constituents from Rhabdastrella species. Compounds 1-3 inhibited NO production in LPS stimulated BV2 cells with IC50 values of 20.4 ± 1.5, 17.5 ± 0.9, and 46.8 ± 2.3 μM, respectively.

Bioactivity of Flavonoids Isolated from Lychnophora markgravii against Leishmania amazonensis Amastigotes

2009 ◽  
Vol 64 (7-8) ◽  
pp. 509-512 ◽  
Author(s):  
Marcos José Salvador ◽  
Fabiana Terezinha Sartori ◽  
Ana Claudia B. C. Sacilotto ◽  
Elizabeth M. F. Pral ◽  
Silvia Celina Alfieri ◽  
...  
Keyword(s):  
Methyl Ether ◽  
Spectroscopic Data ◽  
Leishmania Amazonensis ◽  
Active Compounds ◽  
Esi Ms ◽  
Chemical Structures ◽  
Chromatographic Techniques ◽  
Aerial Parts ◽  
Leishmania Amastigotes

The bioactivity of the flavonoids pinostrobin (1), pinocembrin (2), tectochrysin (3), galangin 3-methyl ether (4), and tiliroside (5) isolated from Lychnophora markgravii aerial parts was investigated in vitro against amastigote stages of Leishmania amazonensis. The compounds were isolated by several chromatographic techniques and their chemical structures were established by ESI-MS and NMR spectroscopic data. The flavonoids 1 and 3 were the most active compounds; they markedly reduced the viability of Leishmania amastigotes.

scholarly journals Flavonoids in Achillea collina

2001 ◽  
Vol 69 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Denata Kasaj ◽  
Liselotte Krenn ◽  
Gottfried Reznicek ◽  
Sonja Prinz ◽  
Antje Hüfner ◽  
...  
Keyword(s):  
Methanolic Extract ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Esi Ms ◽  
Aerial Parts ◽  
First Time

In a detailed study on the flavonoid pattern of Achillea collina BECKER ten flavonoids were isolated from a methanolic extract of aerial parts of the plant. Their structures were determined by UV, ESI-MS, GC-MS and NMR spectroscopic methods including 2D-NMR. Apigenin-7-O-rutinoside was proven for the first time in the genus Achillea.

scholarly journals GLYCOSIDES ISOLATED FROM THE AERIAL PARTS OF Premna integrifolia L. GROWING IN THAI BINH

2019 ◽  
Vol 57 (4) ◽  
pp. 420 ◽  
Author(s):  
Truong Thi Thu Hien ◽  
Ngo Thi Tuyet Mai ◽  
Bach Thi Tam ◽  
Nguyen Thi Thu Hien ◽  
Le Canh Viet Cuong ◽  
...  
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Previous Literature ◽  
First Report ◽  
Esi Ms ◽  
Chemical Structures ◽  
Aerial Parts

From the aerial parts of Premna integrifolia L., three glycosides acteoside (1), premnaodoroside A (2), and premnaodoroside B (3) were isolated. Their chemical structures were elucidated by means of ESI-MS, 1H-NMR, 13C-NMR, HSQC, HMBC spectra and in comparison with the previous literature. To our best knowledge, this is the first report of 1 and 3 from P. integrifolia.

scholarly journals PHENOLIC COMPOUNDS FROM CALLISTEMON CITRINUS LEAVES AND STEMS

2016 ◽  
Vol 54 (2) ◽  
pp. 190 ◽  
Author(s):  
Pham Ngoc Khanh ◽  
Ho Viet Đuc ◽  
Tran Thu Huong ◽  
Vu Thi Ha ◽  
Doan Thi Van ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Benzoic Acid ◽  
Protocatechuic Acid ◽  
2D Nmr ◽  
Chemical Investigation ◽  
Phytochemical Analysis ◽  
Methyl Gallate ◽  
Bioactive Constituents ◽  
Esi Ms ◽  
Benzoic Acid Derivatives

In the search for bioactive constituents from Vietnamese plants,  the leaves and stems of Callistemon citrinus (Curtis) Skeels were selected for chemical investigation. Phytochemical analysis of plant led to the isolation of eight phenolic compounds including two flavonoids (eucalyptine (1) and 8-demethyleucalyptine (2)), two alcohols (blumenol A (3), n-tetratriacontanol (4)), three benzoic acid derivatives (acid gallic (5), methyl gallate (6) protocatechuic acid (7)), one sterol (b-sitosterol (8)), and along with one sesquiterpene (2,6,10-bisabolatriene (9)). The structures of the natural compounds were determined by spectroscopic evidences including 1D- and 2D-NMR and ESI-MS.

scholarly journals CHEMICAL CONSTITUENTS FROM THE ROOTS OF MYXOPYRUM SMILACIFOLIUM

2021 ◽  
Vol 59 (4) ◽  
pp. 498
Author(s):  
Nguyễn Quốc Vượng ◽  
Vu Van Chien ◽  
Nguyễn Thị Huế ◽  
Phạm Thị Hằng ◽  
Tran Van Hieu ◽  
...  
Keyword(s):  
Data Analysis ◽  
Chemical Constituents ◽  
2D Nmr ◽  
Esi Ms ◽  
Hydroxymethyl Furfural ◽  
Chemical Structures

 From the roots of Myxopyrum smilacifolium Blume, five known compounds, verbascoside (1), arenarioside (2), myxopyroside (3), 3-formylindole (4), and 5-hydroxymethyl furfural (5) were isolated. Their chemical structures were determined by  ESI-MS, 1D, 2D-NMR spectrascopic data analysis as well as in comparison with those reported in the literatures.   

scholarly journals A New Iridoid from the Aerial Parts of Hedyotis Pilulifera

2016 ◽  
Vol 11 (3) ◽  
pp. 1934578X1601100
Author(s):  
Nguyen Thi Hoai ◽  
Ho Viet Duc ◽  
Nguyen Dinh Quynh Phu ◽  
Takeshi Kodama ◽  
Takuya Ito ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Iridoid Glycosides ◽  
Bacterial Species ◽  
2D Nmr ◽  
Spectral Analyses ◽  
Esi Ms ◽  
Aerial Parts ◽  
Nmr Data ◽  
Mic Value

A new iridoid, 10-acetylborreriagenin (1), and five known iridoid glycosides (2–6), were isolated from the aerial parts of Hedyotis pilulifera. Their structures were elucidated by spectral analyses, including 1D- and 2D-NMR, and HR-ESI-MS, and comparisons with the NMR data reported in the literature. The isolated compounds 1–6 were tested against six bacterial species. Among them, 10-acetylborreriagenin (1) showed antibacterial activity against Staphylococcus aureus, with an MIC value of 100 μg/mL.

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