Výsledky vyhledávání - "Farouk S. El-Feraly"

Akademický článek

New Bioactive Azaartemisinin Derivatives

Autor: Farouk S. El-Feraly, Ahlam M. Al-Fishawi, Mohamed S. Ahmad, Ahmed M. Galal, Mai M. Al-Oqail

Publikováno v: Molecules, Vol 8, Iss 12, Pp 901-909 (2003)

Reaction of artemisinin (1) with ethanolamine, followed by acid treatment produced the lactam (4S,8S,9S,13S,1R,5R,12R)-11-aza-11-(2-hydroxyethyl)-1,5,9-trimethyl-14,15-dioxatetracyclo [10.2.1.0.0]pentadecan-10-one (4) and the diol (1S,2S,6S,7S,5R,8R)

Externí odkaz: https://doaj.org/article/db939748e69647dea6a739ecbd2b60af

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Antiparasitic, nematicidal and antifouling constituents fromJuniperusberries

Autor: Babu L. Tekwani, Jan Pieter Hendrik Bosselaers, Shabana I. Khan, Md. Abdul Gafur, Jaber S. Mossa, Farouk S. El-Feraly, Volodymyr Samoylenko, D. Chuck Dunbar, Ilias Muhammad, Samir A. Ross

Publikováno v: Phytotherapy Research. 22:1570-1576

A bioassay-guided fractionation of Juniperus procera berries yielded antiparasitic, nematicidal and antifouling constituents, including a wide range of known abietane, pimarane and labdane diterpenes. Among these, abieta-7,13-diene (1) demonstrated i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8440dd7e5f84d1e6954db3238d347fc
https://doi.org/10.1002/ptr.2460

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New Bioactive Azaartemisinin Derivatives

Autor: Ahmed Galal, Mai M. Al-Oqail, Mohamed S. Ahmad, Ahlam M. Al-Fishawi, Farouk S. El-Feraly

Publikováno v: Molecules, Vol 8, Iss 12, Pp 901-909 (2003)
Molecules
Volume 8
Issue 12
Pages 901-909
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e814bc864fa0c177c53f61e467eb1e3
https://doi.org/10.3390/81200901

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HPLC fingerprinting and estimation of the bioactive components ofClutia richardiana L. as a potential hypoglycemic herbal tea

Autor: Farouk S. El-Feraly, Jaber S. Mossa, Ehab A. Abourashed, Markus Ganzera, Ikhlas A. Khan, Shabana I. Khan

Publikováno v: Phytotherapy Research. 17:657-660

Clutia richardiana L. is a traditional medicinal herb with demonstrated hypoglycemic effects. An HPLC method (Luna((R)) C(18) column, gradient elution, UV detection at 220 nm) has been utilized to determine the levels of the major diterpenes of C. ri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd428bd69a00e0bb1e1765c423e65a9c
https://doi.org/10.1002/ptr.1223

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Antioxidant effect of flavonoids on DCF production in HL-60 cells

Autor: Mahmoud A. ElSohly, Daneel Ferreira, Ahmed M. Galal, Abdel-Rahim S. Ibrahim, Samir A. Ross, Farouk S. El-Feraly, Satoshi Takamatsu

Publikováno v: Phytotherapy Research. 17:963-966

A fluorometric microplate assay was performed for the detection of respiratory burst activity in a human leukaemia cell line HL-60 by assessing oxidation of 2',7'-dichloro fluorescin diacetate (DCFH-DA). This method is based on the detection of DCFH

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b82d8b7fbc3f2dd01b8a45118a49d01
https://doi.org/10.1002/ptr.1289

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Transformation of lactone to lactam in sarcophine and antimalarial activity of the resulting N-substituted azasarcophines

Autor: D. Chuck Dunbar, Mitchell A. Avery, Yogesh A. Sabnis, Jaber S. Mossa, Mark T. Hamann, Farouk S. El-Feraly, Khalid A. El Sayed, Khaled Y. Orabi

Publikováno v: Tetrahedron. 58:3699-3708

Sarcophine ( 1 ) is a furanocembranoid diterpene first reported from the Red Sea soft coral Sarcophyton glaucum with remarkable yields of up to 3% dry weight. Semisynthetic transformation of the lactone to lactam in sarcophine by reaction with benzyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3192e3bed775280e890d830df00f9891
https://doi.org/10.1016/s0040-4020(02)00330-7

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Deoxyartemisinin Derivatives from Photooxygenation of Anhydrodeoxydihydroartemisinin and Their Cytotoxic Evaluation

Autor: Mohamed S. Ahmed, Farouk S. El-Feraly, Ahmed M. Galal, Mahmoud A. ElSohly, Andrew T. McPhail, Hala N. ElSohly, Samir A. Ross

Publikováno v: Journal of Natural Products. 65:184-188

Photooxygenation of anhydrodeoxydihydroartemisinin (4) followed by chromatographic separation of the reaction mixture yielded the new compounds alpha- (5) and beta-hydroperoxydeoxyartemisitene (8) and the formate ester 7, together with two previously

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f7eab012ffbeb8778baa68f83231957
https://doi.org/10.1021/np0104065

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A weakly antimalarial biflavanone from Rhus retinorrhoea

Autor: Farouk S. El-Feraly, Daneel Ferreira, Jaber S. Mossa, Mahmoud A. ElSohly, Abdel-Rahim S. Ibrahim, Samir A. Ross, Mohamed S. Ahmed, Ahmed M. Galal

Publikováno v: Phytochemistry. 58:599-602

The biflavanone (2S,2"S)-7,7"-di-O-methyltetrahydroamentoflavone and five known flavonoids, 7-O-methylnaringenin, 7,3'-O-dimethylquercetin, 7-O-methylapigenin, 7-O-methylluteolin, and eriodictyol were isolated from the leaves of Rhus retinorrhoea Ste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6677cf413cbce3888c6fb627ae349f33
https://doi.org/10.1016/s0031-9422(01)00244-8

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Microbial Hydroxylation and Reduction of the Diterpene Psiadin

Autor: Farouk S. El-Feraly, Andrew T. McPhail, Abdel-Rahim S. Ibrahim, Khaled Y. Orabi, Ahmed Galal

Publikováno v: Zeitschrift für Naturforschung C. 56:216-222

Microbial bioconversion studies conducted on the diterpene psiadin have revealed that it was metabolized by Aspergillus niger (NRRL 2295) to give 2α-hydroxydeoxopsiadin, Cunninghamella blakesleeana (ATCC 8688a) to give 11β-hydroxypsiadin, and Cylin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71340ac487c0315d99e0ddb1b1f36d2d
https://doi.org/10.1515/znc-2001-3-408

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New Eudesmane Sesquiterpenes from Plectranthus cylindraceus

Autor: Farouk S. El-Feraly, Jaber S. Mossa, Khaled Y. Orabi, Ilias Muhammed, Andrew T. McPhail, Ahmed M. Galal, Mohammed H. Alloush

Publikováno v: Journal of Natural Products. 63:1665-1668

Three new eudesmane sesquiterpenes, plectranthone (1), desacetylplectranthone (2), isodeacetylplectranthone (3), and the three known flavonols pachypodol, casticin, and chrysosplenol D were isolated for the first time from the aerial parts of Plectra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbf8dc0e1e4d14fd7d0698b3b2f000b9
https://doi.org/10.1021/np000124p

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