Sesquiterpene Lactones from Achillea collina Becker

2002 ◽  
Vol 57 (7-8) ◽  
pp. 568-570 ◽  
Author(s):  
Elena Mustakerova ◽  
Milka Todorova ◽  
Elena Tsankova
Keyword(s):  
Sesquiterpene Lactones ◽  
Spectroscopic Methods ◽  
Aerial Parts

Aerial parts of Achillea collina afforded, in addition to five known sesquiterpene lactones two new germacranolides and one new eudesmanolide, the structures of which were elucidated by spectroscopic methods.

scholarly journals New Guaianolide-Type Sesquiterpene Lactones from Inula verbascifolia

2013 ◽  
Vol 68 (5-6) ◽  
pp. 175-180
Author(s):  
Abou El-Hamd H. Mohamed ◽  
Hosam-Eldin H. Mahmoud ◽  
Fathy F. Abdellatif ◽  
Yousif S. Mohamed ◽  
Ahmed A. Ahmed
Keyword(s):  
Sesquiterpene Lactones ◽  
Spectroscopic Methods ◽  
H Nmr ◽  
Aerial Parts ◽  
C Nmr

The aerial parts of Inula verbascifolia afforded two new guaianolide-type sesquiterpene lactones. Their structures were determined by spectroscopic methods (IR, MS, 1H NMR, 13C NMR, DEPT, 1H-1H COSY, HMQC, and HMBC).

Secondary Metabolites from Centaurea deusta with Antimicrobial Activity

2002 ◽  
Vol 57 (1-2) ◽  
pp. 75-80 ◽  
Author(s):  
Anastasia Karioti ◽  
Helen Skaltsa ◽  
Diamanto Lazari ◽  
Marina Sokovic ◽  
Begoña Garcia ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antifungal Activity ◽  
Sesquiterpene Lactones ◽  
Antibacterial Activities ◽  
Spectroscopic Methods ◽  
Microdilution Method ◽  
Aerial Parts ◽  
New Compounds ◽  
High Antifungal Activity

The aerial parts of Centaurea deusta Ten. afforded in addition to several known compounds, mainly sesquiterpene lactones, one new eudesmanolide and one new elemane derivative. Structures of the new compounds were elucidated by spectroscopic methods. The in vitro antifungal and antibacterial activities of the isolated compounds was tested, using the microdilution method. All compounds tested showed high antifungal activity.

Sesquiterpene Lactones and Flavonoids from the aerial parts of Anthemis melanolepis L

Planta Medica ◽  
2006 ◽  
Vol 72 (11) ◽  
Author(s):  
H Skaltsa ◽  
V Saroglou ◽  
Z Kypriotakis
Keyword(s):  
Sesquiterpene Lactones ◽  
Aerial Parts

Sesquiterpene lactones from the aerial parts of Anthemis melanolepis L

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
V Saroglou ◽  
A Karioti ◽  
H Skaltsa
Keyword(s):  
Sesquiterpene Lactones ◽  
Aerial Parts

scholarly journals 30-Normedicagenic Acid Glycosides from Chenopodium Foliosum

2012 ◽  
Vol 7 (11) ◽  
pp. 1934578X1200701
Author(s):  
Paraskev T. Nedialkov ◽  
Zlatina Kokanova-Nedialkova ◽  
Daniel Bücherl ◽  
Georgi Momekov ◽  
Jörg Heilmann ◽  
...  
Keyword(s):  
Methyl Ester ◽  
Cell Lines ◽  
Interleukin 2 ◽  
Leukemic Cell ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Dioic Acid ◽  
Leukemic Cell Lines ◽  
Aerial Parts

Two new glycosides of 30-normedicagenic acid, namely 3- O-[ β-D-glucuronopyranosyl methyl ester]-2 β,3 β-dihydroxy-30-noroleane-12,20(29)-diene-23,28-dioic acid 28- O-β-D-glucopyranosyl ester, and 3- O-β-D-glucopyranosyl-2 β,3 β-dihydroxy-30-noroleane-12,20(29)-diene-23,28-dioic acid, together with the known 3- O-β-glucopyranosyl-2 β,3 β-dihydroxy-30-noroleane-12,20(29)-diene-23,28-dioic acid 28- O-β-glucopyranosyl ester, and 3- O-β-glucuronopyranosyl-2 β,3 β-dihydroxy-30-noroleane-12,20(29)-diene-23,28-dioic acid 28- O-β-glucopyranosyl ester were isolated from the aerial parts of Chenopodium foliosum Asch. The structures of the compounds were determined by means of spectroscopic methods (1D and 2D NMR, UV, IR) and HRMS-ESI. The compounds were tested for cytotoxicity on three leukemic cell lines (BV-173, SKW-3, HL-60). In addition, the saponins showed moderate stimulatory effects on interleukin-2 production in PHA/PMA stimulated Jurkat E6.1 cells.

scholarly journals Stem Lettuce and Its Metabolites: Does the Variety Make Any Difference?

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 59
Author(s):  
Janusz Malarz ◽  
Klaudia Michalska ◽  
Anna Stojakowska
Keyword(s):  
Chemical Composition ◽  
Plant Material ◽  
Methanolic Extract ◽  
Sesquiterpene Lactones ◽  
Scavenging Activity ◽  
Nmr Analysis ◽  
Caffeic Acid Derivatives ◽  
Aerial Parts ◽  
Dpph Scavenging Activity ◽  
Dpph Scavenging

The objective of the present study was to characterize chemical composition of hitherto unexamined aerial parts of Lactuca sativa var. angustana cv. Grüner Stern. In contrast to leafy and head varieties of the lettuces, asparagus lettuce grown in Europe is much less studied. Fractionation of a methanolic extract from leaves of L. sativa cv. Grüner Stern, supported with HPLC/DAD and 1H NMR analysis, led to the isolation and/or identification of numerous terpenoid and phenolic compounds, including five apocarotenoids—(-)-loliolide, (+)-dehydrovomifoliol, blumenol A, (6S,9S)-vomifoliol, and corchoionoside C; three sesquiterpene lactones; two lignans—((+)-syringaresinol and its 4-O-β-glucoside); five caffeic acid derivatives; and three flavonoids. Some of the compounds, to the best of our knowledge, have never been isolated from L. sativa before. Moreover, monolignols, phenolic acids and a tryptophan-derived alkaloid were found in the analyzed plant material. Stems, leaves and shoot tips of the asparagus lettuce were examined to assess their phenolics and sesquiterpene lactone content as well as DPPH scavenging activity. Another stem lettuce—L. sativa var. angustana cv. Karola, two cultivars of leafy lettuces and one species of wild lettuce—L. serriola, were also examined as a reference material using HPLC/DAD. The results have been discussed regarding our previous studies and the literature data available.

scholarly journals Phenolic Constituents of Knautia arvensis Aerial Parts

2011 ◽  
Vol 6 (11) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Jaroslaw Moldoch ◽  
Barbara Szajwaj ◽  
Milena Masullo ◽  
Lukasz Pecio ◽  
Wieslaw Oleszek ◽  
...  
Keyword(s):  
Chlorogenic Acid ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Flavone Glycoside ◽  
Aerial Parts ◽  
Dicaffeoylquinic Acid ◽  
Phenolic Constituents ◽  
First Time

A new C-6 flavone glycoside (6), together with seven known compounds, cryptochlorogenic acid (1), chlorogenic acid (2), 2- O- trans-caffeoylhydrocitric acid (3), isovitexin 7-β-D-glucopyranoside (4), 7,4′-dihydroxy-5-methoxyflavone-6- C-β-D-glucopyranoside (5), 3,5- O-dicaffeoylquinic acid (7) and 4,5- O-dicaffeoylquinic acid (8), were isolated from the aerial parts of Knautia arvensis. Their structures were elucidated by extensive spectroscopic methods including 1D- (1H, 13C and TOCSY) and 2D-NMR (DQF-COSY, HSQC, HMBC) experiments, as well as ESIMS analysis. Compounds 1, 3-5 and 8 are reported for the first time in Knautia arvensis.

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

New Sesquiterpene Lactones from the Aerial Parts of Pseudoelephantopus spicatus.

ChemInform ◽  
2007 ◽  
Vol 38 (17) ◽  
Author(s):  
Hamad Hassan Issa ◽  
Sue-Ming Chang ◽  
Yu-Liang Yang ◽  
Fang-Rong Chang ◽  
Yang-Chang Wu
Keyword(s):  
Sesquiterpene Lactones ◽  
Aerial Parts

Dryopterin, ein neuartiges C17-Flavan aus Dryopteris filix-mas / Dryopterin, a Novel C17-Flavan from Dryopteris filix-mas

1981 ◽  
Vol 36 (7-8) ◽  
pp. 607-610 ◽  
Author(s):  
Christian Karl ◽  
Peter Alsted Pedersen ◽  
Gerhard Müller
Keyword(s):  
Spectroscopic Methods ◽  
Aerial Parts ◽  
Acetone Extracts

Abstract Dryopteris filix-mas (L.) Schott, Polypodiaceae, Flavan, Dihydrocoumarin, Lactone From acetone extracts of fresh aerial parts of Dryopteris filix-mas (L.) Schott a flavan-3-ol was isolated. Its structure was elucidated as 5-(3,4-dihydroxyphenyl)-3,3a,4,5-tetrahydro-4,8-dihydro-xy-2H-pyrano[4,3,2-ife]-l-benzopyran-2-one by means of spectroscopic methods including l3C-NMR.

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