scholarly journals Salpleflavone, A New Flavone Glucoside from Salvia Plebeia

2018 ◽  
Vol 42 (6) ◽  
pp. 294-296 ◽  
Author(s):  
Hang-Fei Yu ◽  
Hong Zhao ◽  
Ruo-Xi Liu ◽  
Lie-Feng Ma ◽  
Zha-Jun Zhan
Keyword(s):  
Spectroscopic Data ◽  
2D Nmr ◽  
Esi Ms ◽  
Aerial Parts

Salpleflavone, a new flavone glucoside bearing a sinapinoyl moiety, was isolated from the aerial parts of Salvia plebeia R. Br., together with three known compounds, salplebeone A, salplebeone D and 6- O-methyl-scutellarein. The structure of the new compound was established by detailed analyses of the spectroscopic data, especially 1D and 2D NMR and HR-ESI-MS.

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

A New Flavanone from Spatholobus Suberectus Dunn

2018 ◽  
Vol 42 (10) ◽  
pp. 529-530 ◽  
Author(s):  
Ruo-Xi Liu ◽  
Yi-Lian Xu ◽  
Lie-Feng Ma ◽  
You-Min Ying ◽  
Zha-Jun Zhan
Keyword(s):  
Spectroscopic Data ◽  
2D Nmr ◽  
Esi Ms ◽  
Spatholobus Suberectus ◽  
Ethanol Extracts

A new flavanone, namely 2-(S)-6,7,3’,5′-tetrahydroxyflavanone, was separated from the ethanol extracts of the dried vine stems of Spatholobus suberectus dunn, together with three known ones, 2-(S)-7,3’,5′-trihydroxyflavanone, liquiritigenin and butin. The structure of the new flavanone was identified by detailed analyses of the spectroscopic data, especially 1D and 2D NMR, and HR-ESI-MS.

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.

Pseurotin A1 and A2, two new 1-oxa-7-azaspiro[4.4]non-2-ene-4,6-diones from the holothurian-derived fungus Aspergillus fumigatus WFZ-25

2011 ◽  
Vol 89 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Fa-Zuo Wang ◽  
De-Hai Li ◽  
Tian-Jiao Zhu ◽  
Min Zhang ◽  
Qian-Qun Gu
Keyword(s):  
Circular Dichroism ◽  
Aspergillus Fumigatus ◽  
Spectroscopic Data ◽  
2D Nmr ◽  
Esi Ms ◽  
Extensive Analysis ◽  
Circular Dichroïsm ◽  
New Metabolites

Two new metabolites containing a 1-oxa-7-azaspiro[4.4]non-2-ene-4,6-dione core, pseurotin A1 (1) and A2 (2), as well as pseurotin A (3), were isolated from the holothurian-derived fungus Aspergillus fumigatus WFZ-25. These compounds were determined using extensive analysis of their spectroscopic data, including 1D and 2D NMR, HR-ESI-MS, and circular dichroism (CD) experiments.

scholarly journals Melicope moluccana Antimalarial Activity of Furoquinoline Alkaloids from the Leaves of Melicope moluccana

2020 ◽  
Vol 5 (2) ◽  
pp. 138-142
Author(s):  
Ryan Ayub Wahjoedi ◽  
Ratih Dewi Saputri ◽  
Tjitjik Srie Tjahjandarie ◽  
Mulyadi Tandjung
Keyword(s):  
Plasmodium Falciparum ◽  
Spectral Data ◽  
Spectroscopic Data ◽  
Chemical Structure ◽  
Antimalarial Activity ◽  
2D Nmr ◽  
Esi Ms ◽  
Ic50 Values

Two furoquinoline alkaloids, leptanoine C (1) and haplopine-3,3´-dimethylallyl ether (2) were isolated from the leaves of Melicope moluccana. The chemical structure of both compounds was determined based on spectroscopic data, including UV, IR, HR-ESI-MS, 1D, and 2D NMR spectral data. The antimalarial activity of compounds 1-2 against Plasmodium falciparum 3D7 showing their IC50 values are 0.18 ppm and 2.28 µg/mL, 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 New Benzophenone O-Glucoside from Hypericum Ellipticum

2009 ◽  
Vol 4 (4) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Elyse Petrunak ◽  
Andrew C. Kester ◽  
Yunbao Liu ◽  
Camile S. Bowen-Forbes ◽  
Muraleedharan G. Nair ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Tumor Cell ◽  
Cell Line ◽  
Spectroscopic Data ◽  
Tumor Cell Line ◽  
2D Nmr ◽  
Acetone Extract ◽  
In Vitro Assays ◽  
Aerial Parts

Examination of the acetone extract of the aerial parts of Hypericum ellipticum afforded a new acetylated benzophenone glucoside (3′- O-β-D-3″,4″,6″-triacetylglucopyranosyl-2,4,5′,6-tetrahydroxybenzophenone) together with catechin and epicatechin. The structure of the benzophenone glucoside was determined by 2D NMR spectroscopic data. The compound inhibited the proliferation of CNS tumor cell line (SF-268) and lipid peroxidation in in vitro assays.

scholarly journals Triterpenoids from Aerial Parts of Glochidion eriocarpum

2010 ◽  
Vol 5 (3) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Vu Kim Thu ◽  
Phan Van Kiem ◽  
Pham Hai Yen ◽  
Nguyen Xuan Nhiem ◽  
Nguyen Huu Tung ◽  
...  
Keyword(s):  
Spectroscopic Data ◽  
2D Nmr ◽  
Chromatographic Separations ◽  
Triterpenoid Saponins ◽  
Fticr Ms ◽  
Aerial Parts ◽  
New Compounds

From the aerial parts of Glochidion eriocarpum, a new triterpene, glochieriol (1), three new triterpenoid saponins, glochieriosides C - E (2 - 4), together with four known triterpenes (glochidonol, glochidiol, lupeol, and 3- epi-lupeol) were isolated by using combined chromatographic separations. The structures of the new compounds were elucidated on the basis of spectroscopic data, including FTICR-MS, 1D and 2D NMR.

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.

A new eudesmane sesquiterpene from Senecio cannabifolius

2009 ◽  
Vol 2009 (7) ◽  
pp. 457-458 ◽  
Author(s):  
Xue Gao ◽  
Xiaohong Deng
Keyword(s):  
Nmr Spectroscopy ◽  
Spectroscopic Data ◽  
2D Nmr ◽  
2D Nmr Spectroscopy ◽  
Esi Ms

A new eudesmane sesquiterpene was isolated from the roots of Senecio cannabifolius. Its structure was established as 1-oxo-5α, 7αH-eudesma-3-en-15-al on the basis of spectroscopic data, including IR, EI-MS, HR-ESI-MS, 1D and 2D NMR spectroscopy.

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