Phytochemical Investigation, Isolation and Characterization of Coumarins from Aerial Parts and Roots of Tunisian Pituranthos chloranthus (Apiaceae)

2015 ◽  
Vol 5 (4) ◽  
pp. 237-243 ◽  
Author(s):  
Latifa Aloui ◽  
Mohamed Kossentini ◽  
Claude Geffroy-Rodier ◽  
Jérôme Guillard ◽  
Sami Zouari
Keyword(s):  
Aerial Parts ◽  
Isolation And Characterization ◽  
Phytochemical Investigation

Semiquinol and phenol compounds from seven Senecio species

2011 ◽  
Vol 65 (1) ◽  
Author(s):  
Boris Mandić ◽  
Dejan Gođevac ◽  
Ljubodrag Vujisić ◽  
Snežana Trifunović ◽  
Vele Tesević ◽  
...  
Keyword(s):  
Spectroscopic Studies ◽  
1H And 13C Nmr ◽  
Serbia And Montenegro ◽  
Phenol Compounds ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
Compound Ii ◽  
Tof Ms

AbstractIn this paper, examination of the aerial parts of seven Senecio species from Serbia and Montenegro is reported. Phytochemical investigation of Senecio erucifolius led to the isolation and characterization of semiquinol butyl 2-(1-hydroxy-4-oxocyclohexa-2,5-dienyl)acetate (I), along with methyl 2-(1-hydroxy-4-oxocyclohexa-2,5-dienyl)acetate (jacaranone, II), and methyl 2-(4-hidroxyphenyl)acetate (III). The structure of I was established based on spectroscopic studies (1H- and 13C-NMR, IR, and CI-MS). Compound II was also isolated from S. carpathicus and S. subalpinus. The presence of jacaranone in the methanol extracts of S. wagneri, S. othonnae, and S. paludosus was confirmed by LC/ESI-TOF MS.

scholarly journals Diterpenoid Alkaloids and Phenol Glycosides from Aconitum Naviculare (Brühl) Stapf

2008 ◽  
Vol 3 (12) ◽  
pp. 1934578X0800301 ◽  
Author(s):  
Stefano Dall'Acqua ◽  
Bharat B. Shrestha ◽  
Mohan Bikram Gewali ◽  
Pramod Kumar Jha ◽  
Maria Carrara ◽  
...  
Keyword(s):  
Human Tumor ◽  
2D Nmr ◽  
Diterpenoid Alkaloids ◽  
Human Tumor Cell Lines ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
2D Nmr Spectra ◽  
Phenol Glycosides

Phytochemical investigation of the aerial parts of Aconitum naviculare, a medicinal plant used in traditional Nepalese medicine, led to the isolation and characterization of two new diterpenoid alkaloids, navirine B (1), and navirine C (2), along with (+) chellespontine (3), kaempferol-7-O-β-D-glucopyranosyl(1→3)α-L-rhamnopyranoside (4), kaempferol-7-O α-L-rhamnopyranoside,3-O-β-D-glucopyranoside (5), p-coumaric-4-O-β-D-glucopyranoside acid (6), and ferulic-4-O-β-D-glucopyranoside acid (7). The structures of the isolated compounds were elucidated on the basis of extensive analyses of 1D and 2D NMR spectra (HMQC, HMBC, COSY, ROESY) and HR-MS data. The antiproliferative activity of alkaloids 1–3 against human tumor cell lines (LoVo and 2008) was also evaluated.

scholarly journals Triterpenoids Isolated from Stem Bark of Glochidion lanceolarium (Roxb.), Voigt

2021 ◽  
Vol 18 (1) ◽  
pp. 13-18
Author(s):  
Selina Kabir ◽  
Mohammad Rashedul Haque ◽  
Abdullah Mohammad Sarwaruddin Chowdhury ◽  
Mohammad Abdur Rashid ◽  
Choudhury Mahmood Hasan
Keyword(s):  
Stem Bark ◽  
Chemical Investigation ◽  
Spectroscopic Methods ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
Organic Extracts

This paper presents the chemical investigation of the stem barks of Glochidion lanceolarium (Roxb.) Voigt, Euphorbiaceae. Classic phytochemical investigation of organic extracts of the aerial parts of Glochidion lanceolarium together with spectroscopic methods led to the isolation and characterization of three triterpenes, namely Epilupeol (1) Glochidonol (2), Glochidone (3). Journal of Science Foundation, January 2020;18(1):13-18

scholarly journals Lagerindicine, a New Pyrrole Alkaloid Isolated from the Flowers of Lagerstroemia indica Linnaeus

2020 ◽  
Author(s):  
Yi Chen ◽  
Song-Wei Li ◽  
Fang-Zhou Yin ◽  
Min Yang ◽  
Xia-Juan Huan ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Spectroscopic Analysis ◽  
Human Colon ◽  
Human Colon Cancer ◽  
Cytotoxic Effects ◽  
Etoh Extract ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
Hct 116

Abstract A phytochemical investigation of the EtOH extract of the flowers of Lagerstroemia indica L. led to the isolation and characterization of a new pyrrole alkaloid, named lagerindicine (1), along with four known compounds (2–5). Their structures were elucidated by the detailed spectroscopic analysis and comparison with literature data, whereas the structure, in particularly, the absolute configuration (AC) of 1, was firmly determined by total synthesis. All the isolates were evaluated for their cytotoxic effects against human colon cancer cell (HCT-116), and compound 3 exhibited weak cytotoxicity with IC50 value of 28.4 μM. Graphic Abstract

ChemInform Abstract: Isolation and Characterization of Novel Esters from Aerial Parts of Tiliacora acuminata.

ChemInform ◽  
2009 ◽  
Vol 40 (47) ◽  
Author(s):  
S. Joseph Selvaraj ◽  
I. Alphonse ◽  
S. John Britto
Keyword(s):  
Aerial Parts ◽  
Isolation And Characterization

scholarly journals Qualitative Phytochemical Analysis of Incarvillea emodi (Royle ex Lindl.) Chatterjee and Malva neglecta (Wallr.)

2020 ◽  
Vol 10 (4) ◽  
pp. 93-95
Author(s):  
M. Huzafa ◽  
Z. Jamal ◽  
A. Ahmed
Keyword(s):  
Bioactive Compounds ◽  
Plant Material ◽  
Phytochemical Analysis ◽  
Phytochemical Screening ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
Confirmatory Tests ◽  
Phytochemical Profile ◽  
Positive Results

The present study was carried out to investigate the phytochemical profile of Incarvillea emodi and Malva neglecta. The two plants were screened for the presence of nine different classes of bioactive compounds. The qualitative tests were performed on the aerial and underground parts of the selected plants to relate the presence of phytochemicals with bioactivities of the plants. The selected plant material was extracted with three different solvents. These extracts were then subjected to phytochemical screening and the presence of various phytochemicals was confirmed by different standard confirmatory tests. Most of the phytochemicals were found to be present. Results showed that the underground parts of Incarvillea emodi contain comparatively greater number of phytochemicals than the aerial parts. Whereas, in case of Malva neglecta the aerial parts showed more positive results than the underground parts. The current study offers proof for the presence of important bioactive compounds in the studied plants and recommends isolation and characterization of these compounds in the future.

scholarly journals Isolation and characterization of Stigmasta-7, 22-dien-3-ol (α-Spinasterol) from Entada africana stem bark crude extract

2019 ◽  
Vol 4 (3) ◽  
pp. 85
Author(s):  
A. Kwajia ◽  
H.M. Adamub ◽  
I.Y. Chindob
Keyword(s):  
Crude Extract ◽  
Spectroscopic Data ◽  
Soluble Fraction ◽  
Stem Bark ◽  
Literature Analysis ◽  
Bark Sample ◽  
Isolation And Characterization ◽  
Nmr Data ◽  
Phytochemical Investigation

The phytochemical  investigation of the stem bark extracts of Entada africana led to the isolation and characterization of Stigmasta-7,22-dien-3-ol from the dichloromethane soluble portion of acetone/methanol (1:1v/v) crude extract. The powdered stem bark sample of Entada africana was defatted with hexane and extracted with acetone/methanol (1:1v/v) mixture. The dichloromethane soluble fraction was purified on a low pressure column containing silica gel 60 (60-200 mesh). The purification afforded an isolate coded Enac3 (85 mg) with Rf value of 0.404 in hexane/ethyl acetate (4:1). The isolate was characterized using IR, NMR data and in comparison with literature. Analysis of spectroscopic data and literature comparison suggests Enac3 as stigmasta-7, 22-dien-3-ol. The isolation of stigmasta-7, 22-dien-3-ol from the stem bark of Entada africana suggests the presence of useful bioactive principles which could be exploited for medicinal purposes.

scholarly journals 4-Hydroxy-trans-cinnamate Derivatives and Triterpene from Barleria cristata

2014 ◽  
Vol 12 (2) ◽  
pp. 143-145 ◽  
Author(s):  
Nipa Chowdhury ◽  
Abdullah Al Hasan ◽  
Fakir Shahidullah Tareq ◽  
Monira Ahsan ◽  
ATM Zafrul Azam
Keyword(s):  
Medicinal Plant ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Spectroscopic Methods ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
Organic Extracts ◽  
Whole Plants ◽  
Important Medicinal Plant

Barleria cristata is an important medicinal plant of Bangladesh. Many compounds of diverse biological activities were isolated from different Barleria species, including irridoids, flavonoids and phenylethanoid derivatives in addition to other groups of chemical constituents. This paper presents the chemical investigation of the whole plants of B.cristata. Classic phytochemical investigation of organic extracts of the whole plants of B. cristata together with spectroscopic methods led to the isolation and characterization of 4-hydroxy-trans-cinnamate derivatives (1-3) and a triterpene, namely oleanolic acid (4). Dhaka Univ. J. Pharm. Sci. 12(2): 143-145, 2013 (December) DOI: http://dx.doi.org/10.3329/dujps.v12i2.17623

scholarly journals Isolation and Characterization of New Ceramides from Aerial Parts of Lepidaploa cotoneaster

2012 ◽  
Vol 7 (6) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Edlene O. dos Santos ◽  
Marilena Meira ◽  
Ademir E. do Vale ◽  
Jorge M. David ◽  
Luciano P. de Queiróz ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Double Bond ◽  
Dimethyl Disulfide ◽  
Spectral Techniques ◽  
H Nmr ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
New Compounds ◽  
C Nmr

Two new ceramides were isolated from the bulbs of Lepidaploa cotoneaster (Willd. ex Spreng.) H. Rob. [ Vernonia cotoneaster (Willd. ex Spreng.) Less.)], in addition to germanicol, β-sitosterol, stigmasterol, 3-β- O-β-D-glucopyranosyl-sitosterol, lupeol, lupeoyl acetate and tiliroside. The structures of the new compounds were elucidated by spectral techniques (MS, 1H NMR, 13C NMR, HSQC, HMBC, DEPT, and TOCSY) and were compared with data reported in literature, and were established as 2 S*,2′ R*,3 S*,4 R*,11 E)- N-[2′-hydroxyhenicosanoyl]-2-amino-nonadec-11-ene-1,3,4-triol (1) and (2 S*,2′ R*,3 S*,4 R*,8 E)- N-[2′-hydroxytricosanoyl]-2-amino-nonadec-8-ene-1,3,4-triol (2). To establish the structure and to locate the double bond, the methyl ester of the fatty acid and dimethyl disulfide (DMDS) derivatives were prepared for both ceramides.

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