scholarly journals PHYTOCHEMICAL STUDIES OF THE PETROLEUM ETHER EXTRACT OF THE LEAVES OF Lagerstroemia speciosa Linn

2010 ◽  
Vol 9 (3) ◽  
pp. 500-504
Author(s):  
S.M. Mizanur Rahman ◽  
Shayla Pervin ◽  
Md. Abdul Quader ◽  
M. Amzad Hossain
Keyword(s):  
Petroleum Ether ◽  
1H Nmr ◽  
13C Nmr ◽  
Mass Spectra ◽  
Petroleum Ether Extract ◽  
Ether Extract ◽  
Lagerstroemia Speciosa ◽  
New Compounds ◽  
Phytochemical Studies ◽  
First Time

Two new compounds, normal alcohol containing of higher carbons and isomer of β-sitosterol were isolated for the first time from the petroleum extract of the leaves of Lagerstroemia speciosa. The structure of the compound has been established on the basis of UV, IR, 1H-NMR, 13C-NMR and mass spectra and identified as nonanol and isomer of β-sitosterol.   Keywords: Lagerstroemia speciosa, petroleum ether extracts, isolation, 1-nonanol, 2 β-sitostero, spectral analyses.

scholarly journals Sesqui- and triterpenoids from the pericarp of Lansium domesticum

2019 ◽  
Vol 2 (1) ◽  
pp. 47-52
Author(s):  
Nguyen Thi Thao Ly ◽  
Bui Ngoc Dung ◽  
Cao Thi Kieu Trang ◽  
Nguyen Thi Le Thu
Keyword(s):  
Petroleum Ether ◽  
1H Nmr ◽  
13C Nmr ◽  
Petroleum Ether Extract ◽  
Ether Extract ◽  
First Time ◽  
Lansium Domesticum

Four compounds were isolated from a petroleum ether extract of the pericarp of Lansium domesticum collected in Quang Nam Province. Their structures were determined using NMR (1H NMR, 13C NMR, HSQC, HMBC, and COSY) techniques. The compounds were two sesquiterpenoids, 6α,9β-dihydroxyeudesma-4(15)- ene and aphanamol II, along with two onocerane triterpenoids, 3β-hydroxyonocera-8(26),14-diene- 21-one and ,β-onoceradienedione. This is the first time that 6α,9β-dihydroxyeudesma-4(15)-ene has been found in nature.

scholarly journals Phytochemical studies of the herb, Tragopogon orientalis L. (Asteraceae). 1. The components of a petroleum ether extract

2014 ◽  
Vol 57 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Tadeusz Krzaczek ◽  
Helena D. Smolarz
Keyword(s):  
Gas Chromatography ◽  
Petroleum Ether ◽  
Petroleum Ether Extract ◽  
Crystalline Form ◽  
Aliphatic Alcohols ◽  
Ether Extract ◽  
Phytochemical Studies

Hydrocarbons, aliphatic alcohols, triterpenes and sterols were shown to occur in the herb, <em>Tragopogon orientalis</em> L. The following were obtained in crystalline form: n-triacontan, hexacosanol, (β-amyrin and lupeol. The presence of (β-sitosterol, stigmasterol, cholesterol and four unidentified sterols was demonstrated by gas chromatography.

scholarly journals Phytochemical Investigations ofCaesalpinia digynaRoot

2011 ◽  
Vol 8 (4) ◽  
pp. 1843-1847 ◽  
Author(s):  
R. Srinivasan ◽  
M.J.N. Chandrasekar ◽  
M.J. Nanjan
Keyword(s):  
Petroleum Ether ◽  
Spectral Data ◽  
Petroleum Ether Extract ◽  
Ether Extract ◽  
Hexacosanoic Acid ◽  
First Time

Phytochemical examination of petroleum ether extract ofCaesalpinia digynaroot resulted in the isolation of four compounds namely, friedelin, hexacosanoic acid,β-sitosterol and stigmasterol. These compounds have been characterized on basis of physical and spectral data. All the four compounds are being reported for the first time from this plant

The Structure Elucidation and Antimicrobial Activities of Nonsterol Triterpenoids from Ixeris chinensis

2014 ◽  
Vol 69 (9-10) ◽  
pp. 1021-1025 ◽  
Author(s):  
Qing-Hu Wang ◽  
Na-Ren-Chao-Ke-Tu Han ◽  
Na-Yin-Tai Dai ◽  
Xiao-Lan Wu ◽  
Wen-Quan Tai ◽  
...  
Keyword(s):  
Petroleum Ether ◽  
Structure Elucidation ◽  
Petroleum Ether Extract ◽  
2D Nmr ◽  
Antimicrobial Activities ◽  
Spectroscopic Methods ◽  
Ether Extract ◽  
Esi Ms ◽  
Nmr Techniques ◽  
First Time

Abstract An investigation of the petroleum ether extract from Ixeris chinensis Nakai has led to the isolation of a new compound, 3-O-acetyl-22,28-cyclobauer-7-en-3β-ol (1), together with four known compounds which have been isolated from this plant for the first time, namely taraxast-20-en-3β-ol (2), 3-O-acetyl-taraxast-20-en-3β-ol (3), taraxast-20(30)-en-3β-ol (4), and 3-O-acetyl-taraxast-20(30)- en-3β-ol (5). The structures of the isolated compounds have been elucidated on the basis of spectroscopic methods including UV, IR, ESI-MS, 1D NMR, 2D NMR techniques, and by comparison with data reported in the literature. All compounds have been evaluated for their activity against various bacteria and shown to give good results

scholarly journals PHYTOCHEMICAL STUDY OF THE ARIAL PARTS OF Cleome rutidosperma DC PLANT

2010 ◽  
Vol 8 (3) ◽  
pp. 459-462 ◽  
Author(s):  
S. M. Mizanur Rahman ◽  
Serajum Munira ◽  
M. Amzad Hossain
Keyword(s):  
Spectral Analysis ◽  
Carboxylic Acid ◽  
Petroleum Ether ◽  
13C Nmr ◽  
Mass Spectral Data ◽  
Phytochemical Study ◽  
Mass Spectral ◽  
New Compounds ◽  
First Time ◽  
Cleome Rutidosperma

Two new compounds were identified as 2-ethyl-cyclohex-2-ene-6-hydroxy-methylene-1-carboxylic acid and 3b-hydroxy-lup-20(29)-en-28-oic acid, respectively, from the petroleum ether extracts of Cleome rutidosperma plant. These two constituents is the first time occurrence in this plant. The structures of the two different type of compounds are elucidated with the help of UV, IR, 1H-NMR, 13C-NMR, COSY, DEPT 90, DEPT 135 and mass spectral data.   Keywords: Cleome rutidosperm DC; isolation; spectral analysis

scholarly journals Phytochemical studies on the aerial parts of Sarcococca hookeriana (Baillon) of Nepalese origin

1970 ◽  
Vol 21 ◽  
pp. 8-15
Author(s):  
Narayan P. Rai ◽  
Bimala Lama ◽  
Shiva P. Subedi ◽  
W. C. Taylor ◽  
M. D. Manandhar
Keyword(s):  
Spectral Analysis ◽  
Oleanolic Acid ◽  
1H Nmr ◽  
13C Nmr ◽  
Chemical Society ◽  
Chloroform Extract ◽  
Hmbc Spectrum ◽  
Aerial Parts ◽  
Phytochemical Studies ◽  
First Time

Two known pregnane type of alkaloids, axillaridine A and spiropachysine, and an unidentified pregane alkaloid along with oleanolic acid and stigmasteryl glucoside have been isolated from chloroform extract of the aerial parts of Sarcococca hookeriana. The structures of the alkaloids are established on the basis of spectral analysis of 1H-NMR, 13C-NMR, HMQC, COSY and HMBC spectrum. All compounds were isolated for the first time from S. hookeriana. So far, species of Sarcococca was not reported to contain spiropachysine which was initially reported as a novel alkaloid from Pachysandra terminalis SIEB. et ZUCC.(Buxaceae).DOI: 10.3126/jncs.v21i0.215Journal of Nepal Chemical Society Vol.21 2006 pp.8-15

Eupatoric Acid: A Novel Triterpene from Eupatorium odoratum L. (Asteraceae)

2005 ◽  
Vol 60 (9) ◽  
pp. 1006-1011 ◽  
Author(s):  
Sajan Amatya ◽  
Sarbajna M. Tuladhar
Keyword(s):  
Palmitic Acid ◽  
Brine Shrimp ◽  
Petroleum Ether Extract ◽  
Spectroscopic Studies ◽  
Artemia Salina ◽  
The Novel ◽  
Ether Extract ◽  
Phytochemical Studies ◽  
First Time ◽  
Ethylhexyl Phthalate

Phytochemical studies on the petroleum ether extract of the roots of Eupatorium odoratum have resulted in the isolation of a novel triterpene, 3β -hydroxy-28-carboxyolean-12-ene (1) along with seven known compounds - poriferasterol (2), octadecane (3), butyrospermol acetate (4), bis(2- ethylhexyl)phthalate (5), chrysophanol (6), physcion (7) and palmitic acid (8). Novel compound 1 is designated as eupatoric acid. Compounds 2 - 7 were reported here for the first time from this plant. Palmitic acid (8) was also isolated for the first time from this root. The structure of the novel compound was established on the basis of spectroscopic studies. The cytotoxicity of the compounds 1 - 7 was studied using a lethality test against Artemia salina (brine shrimp).

Differential cytotoxic activity of the petroleum ether extract and its furanosesquiterpenoid constituents from Commiphora molmol resin

2015 ◽  
Vol 70 (3-4) ◽  
pp. 87-92 ◽  
Author(s):  
Seif-Eldin N. Ayyad ◽  
Thomas R. Hoye ◽  
Walied M. Alarif ◽  
Sana’a M. Al Ahmadi ◽  
Salim A. Basaif ◽  
...  
Keyword(s):  
Petroleum Ether ◽  
Cytotoxic Activity ◽  
Cell Lines ◽  
Petroleum Ether Extract ◽  
Pharmaceutical Preparations ◽  
Mouse Cell ◽  
Cytotoxic Activities ◽  
Ether Extract ◽  
Nih3t3 Cells ◽  
New Compounds

Abstract This study revealed a differential cytotoxic activity of the petroleum ether extract (IC50=5 μg/mL) of the resinous exudates of Commiphora molmol against two mouse cell lines KA31T and NIH3T3 (untransformed and transformed mouse fibroblasts, respectively). Four new compounds (1–4) and five known compounds (5–9) were isolated from the petroleum ether extract. The identity of these new compounds was determined as γ-elemane lactone (1), 5-αH,8-βH-eudesma-1,3,7(11)-trien-8,12-olide (2), 2-hydroxy-11,12-dihydrofuranodiene (3), and 2-hydroxyfuranodiene (4). 1 and 2 displayed the highest cytotoxic activity against NIH3T3 cells. 7 and 9 exhibited moderate cytotoxic activity against KA31T cells. Compounds 3–6 showed weak cytotoxic activities against both cell lines. These results may explain the high efficacy of the petroleum ether fraction in several myrrh-derived pharmaceutical preparations.

Antioxidant lignans from petroleum ether extract of Schisandra chinensis

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
J Slanina ◽  
L Bøezinová ◽  
H Paulová ◽  
O Humpa
Keyword(s):  
Petroleum Ether ◽  
Petroleum Ether Extract ◽  
Schisandra Chinensis ◽  
Ether Extract

Synthesis and Anticonvulsant Activity of 3-(alkylamino, alkoxy)-1,3,4,5- Tetrahydro-2H-benzo [b] azepine-2-one Derivatives

2018 ◽  
Vol 17 (6) ◽  
pp. 448-457 ◽  
Author(s):  
Xia Huang ◽  
Tie Chen ◽  
Rong-Bi Han ◽  
Feng-Yu Piao
Keyword(s):  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Anticonvulsant Activity ◽  
Mass Spectra ◽  
Maximal Electroshock ◽  
Test Compound ◽  
Maximal Electroshock Test ◽  
Mes Test ◽  
Structure Activity

Background & Objective: A series of novel 3-Substituted-1,3,4,5-Tetrahydro-2H-benzo [b] azepine-2-one Derivatives (4, 5, 7, 10, 12, 5a-j, 8a-e) were synthesized from 1,2,3,4-Tetrahydro-1- naphthalenone. The structures of these compounds were confirmed by IR, 1H NMR, 13C NMR, MASS spectra and elemental analysis. Their anticonvulsant activity was evaluated by the maximal electroshock (MES) test, subcutaneous pentylenetetrazol (scPTZ) test, and their neurotoxicity was evaluated by the rotarod neurotoxicity test. Compound 4 showed the maximum anticonvulsant activity against the maximal electroshock test (ED50=26.4, PI =3.2) and against the subcutaneous pentylenetetrazol test (ED50=40.2, PI =2.1). Conclusion: Possible structure-activity relationship was discussed.

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