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Polyphenolic compounds from the leaves of Schinus terebinthifolius Raddi.

Research Abstract
Two quinic acid esters, 5-O-caffeoylquinic acid (1) and 5-O-coumaroylquinic acid (2); three myricetin glycosides, myricetin 3-O--L-rhamnopyranosyl(1′′′6′′)-D-galactopyranoside (3), myricetin 3-O--D-glucuronide (4), and myricetin 3-O--D-galactopyranoside (5); 1,6-digalloyl--D-glucose (6); and (+)-catechin (7) were isolated and identified for the first time from the leaves of Schinus terebinthifolius Raddi. Furthermore, investigation of tannic acid content was carried out by HPLC.
Research Authors
Salwa F. Farag
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Member
Research Publisher
Assiut University
Research Rank
2
Research Vol
31(2)
Research Year
2008

Phytochemical and pharmacological studies of Ficus benjamina L. Leaves

Research Abstract
-amyrin acetate (1), -amyrone (2), 3-friedelanol (3), taraxerol (4), stigmasterol (5), -amyrin (6), -amyrin (7), oleanolic acid (8), stigmasterol 3-O--D-glucopyranoside (9), kaempferol (10), kaempferol 3-O--D-glucopyranoside (11), kaempferol 3-O--L-rhamnopyranosyl-(16)--D-glucopyranoside (12) and kaempferol 3-O--L-rhamnopyranosyl-(16)--D-galactopyranoside (13) were isolated for the first time from the methanolic extract of Ficus benjamina L. leaves. Their structures were elucidated by spectroscopic and chemical methods in addition to comparison with literature data and/or authentic samples. The methanolic extract of F. benjamina L. leaves was investigated for the anti-inflammatory, antinociceptive and antipyretic activities in animal models. It exhibited significant anti-inflammatory, antinociceptive and antipyretic activities.
Research Authors
Salwa F. Farag
Research Department
Research Journal
Mansoura Journal of Pharmaceutical Sciences
Research Member
Research Publisher
Mansoura University
Research Rank
2
Research Vol
21 (2)
Research Year
2005

Phenolics of Cyperus alopecuroides Rottb. inflorescences and their biological activities

Research Abstract
Sixteen phenolic compounds, scopoletin (1), isoliquiritigenin 4-methyl ether (2), luteolin 5,3-dimethyl ether (3), luteolin 7,3-dimethyl ether (4), aureusidin 4-methyl ether (5), apigenin (6), luteolin (7), trans- ferulic acid (8), luteolin 4-O--D-glucopyranoside (9), luteolin 7-O--D-glucopyranoside (10), quercetin 3-O--D-glucopyranoside (11), apigenin 7-O-neohesperidoside (12), kaempferol 3-O-rutinoside (13), quercetin 3-O-rutinoside (14), kaempferol 3-O-[2-O-D-xylopyranosyl-6-O--L-rhamnopyranosyl]--D-glucopyranoside (15) and kaempferol 3-O-[2-O-D-glucopyranosyl-6-O--L-rhamnopyranosyl]--D-glucopyranoside (16) were isolated from the methanolic extract of the inflorescences of Cyperus alopecuroides Rottb. for the first time. Their structures have been established on basis of physical, chemical and spectroscopic methods in addition to comparison with literature data and/or authentic samples. The antioxidant and cytotoxic activities in addition to -amylase inhibitory activity of the isolated compounds have been studied.
Research Authors
Hanaa M. Sayed, Mahmoud H. Mohamed, Salwa F. Farag, Gamal A. Mohamed, Rainer Ebel, Olanrewaju R. M. Omobuwajo and Peter Proksch
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Member
Research Publisher
Assiut University
Research Rank
2
Research Vol
29 (1)
Research Year
2006

Phenolics of Cyperus alopecuroides Rottb. inflorescences and their biological activities

Research Abstract
Sixteen phenolic compounds, scopoletin (1), isoliquiritigenin 4-methyl ether (2), luteolin 5,3-dimethyl ether (3), luteolin 7,3-dimethyl ether (4), aureusidin 4-methyl ether (5), apigenin (6), luteolin (7), trans- ferulic acid (8), luteolin 4-O--D-glucopyranoside (9), luteolin 7-O--D-glucopyranoside (10), quercetin 3-O--D-glucopyranoside (11), apigenin 7-O-neohesperidoside (12), kaempferol 3-O-rutinoside (13), quercetin 3-O-rutinoside (14), kaempferol 3-O-[2-O-D-xylopyranosyl-6-O--L-rhamnopyranosyl]--D-glucopyranoside (15) and kaempferol 3-O-[2-O-D-glucopyranosyl-6-O--L-rhamnopyranosyl]--D-glucopyranoside (16) were isolated from the methanolic extract of the inflorescences of Cyperus alopecuroides Rottb. for the first time. Their structures have been established on basis of physical, chemical and spectroscopic methods in addition to comparison with literature data and/or authentic samples. The antioxidant and cytotoxic activities in addition to -amylase inhibitory activity of the isolated compounds have been studied.
Research Authors
Hanaa M. Sayed, Mahmoud H. Mohamed, Salwa F. Farag, Gamal A. Mohamed, Rainer Ebel, Olanrewaju R. M. Omobuwajo and Peter Proksch
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Member
Research Publisher
Assiut University
Research Rank
2
Research Vol
29 (1)
Research Year
2006

Flavonoids and cyanogenic glycosides from the leaves and stem bark of Prunus persica (L.) Batsch (Meet Ghamr) peach local cultivar in Assiut region

Research Abstract
Mandelonitrile--D-glucopyranoside (prunasin) (1), kaempferol- 3-O--D-galactopyranoside (2), kaempferol-3-O--D-glucopyranoside (3), quercetin-3-O--D-glucopyranoside (4), mandelic acid amide--D-glucopyranoside (5), kaempferol-3-O-[-D-glucopyranosyl-(14)--D-galactopyranoside] (6), mandelonitrile--D-glucopyranosyl-(16)- -D- glucopyranoside (amygdalin) (7) were isolated from the methanolic extract of the leaves of Prunus persica (L.) Batsch “Meet Ghamr” peach. Furthermore, persicogenin (8), naringenin (9), aromadenderin (10), eriodictyol (11), persicogenin-3-O--D-glucopyranoside (12) and hesperitin-5-O--D-glucopyranoside (13) were isolated from the methanolic extract of the stem bark of the title plant. All these compounds were isolated for the first time from “Meet Ghamr“ peach while compounds 5 and 6 were firstly reported from the genus Prunus. Identification of these compounds has been established by physical, chemical and spectral methods (UV, IR, FAB-MS, 1-D-and 2-D NMR).
Research Authors
Enaam Y. Backheet, Salwa F. Farag, Amany S. Ahmed and Hanaa M. Sayed
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Member
Research Publisher
Assiut University
Research Rank
2
Research Vol
26 (1)
Research Year
2003

Flavonoids and cyanogenic glycosides from the leaves and stem bark of Prunus persica (L.) Batsch (Meet Ghamr) peach local cultivar in Assiut region

Research Abstract
Mandelonitrile--D-glucopyranoside (prunasin) (1), kaempferol- 3-O--D-galactopyranoside (2), kaempferol-3-O--D-glucopyranoside (3), quercetin-3-O--D-glucopyranoside (4), mandelic acid amide--D-glucopyranoside (5), kaempferol-3-O-[-D-glucopyranosyl-(14)--D-galactopyranoside] (6), mandelonitrile--D-glucopyranosyl-(16)- -D- glucopyranoside (amygdalin) (7) were isolated from the methanolic extract of the leaves of Prunus persica (L.) Batsch “Meet Ghamr” peach. Furthermore, persicogenin (8), naringenin (9), aromadenderin (10), eriodictyol (11), persicogenin-3-O--D-glucopyranoside (12) and hesperitin-5-O--D-glucopyranoside (13) were isolated from the methanolic extract of the stem bark of the title plant. All these compounds were isolated for the first time from “Meet Ghamr“ peach while compounds 5 and 6 were firstly reported from the genus Prunus. Identification of these compounds has been established by physical, chemical and spectral methods (UV, IR, FAB-MS, 1-D-and 2-D NMR).
Research Authors
Enaam Y. Backheet, Salwa F. Farag, Amany S. Ahmed and Hanaa M. Sayed
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Member
Research Publisher
Assiut University
Research Rank
2
Research Vol
26 (1)
Research Year
2003

Flavonoids and cyanogenic glycosides from the leaves and stem bark of Prunus persica (L.) Batsch (Meet Ghamr) peach local cultivar in Assiut region

Research Abstract
Mandelonitrile--D-glucopyranoside (prunasin) (1), kaempferol- 3-O--D-galactopyranoside (2), kaempferol-3-O--D-glucopyranoside (3), quercetin-3-O--D-glucopyranoside (4), mandelic acid amide--D-glucopyranoside (5), kaempferol-3-O-[-D-glucopyranosyl-(14)--D-galactopyranoside] (6), mandelonitrile--D-glucopyranosyl-(16)- -D- glucopyranoside (amygdalin) (7) were isolated from the methanolic extract of the leaves of Prunus persica (L.) Batsch “Meet Ghamr” peach. Furthermore, persicogenin (8), naringenin (9), aromadenderin (10), eriodictyol (11), persicogenin-3-O--D-glucopyranoside (12) and hesperitin-5-O--D-glucopyranoside (13) were isolated from the methanolic extract of the stem bark of the title plant. All these compounds were isolated for the first time from “Meet Ghamr“ peach while compounds 5 and 6 were firstly reported from the genus Prunus. Identification of these compounds has been established by physical, chemical and spectral methods (UV, IR, FAB-MS, 1-D-and 2-D NMR).
Research Authors
Enaam Y. Backheet, Salwa F. Farag, Amany S. Ahmed and Hanaa M. Sayed
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Publisher
Assiut University
Research Rank
2
Research Vol
26 (1)
Research Year
2003

Flavonoids and cyanogenic glycosides from the leaves and stem bark of Prunus persica (L.) Batsch (Meet Ghamr) peach local cultivar in Assiut region

Research Abstract
Mandelonitrile--D-glucopyranoside (prunasin) (1), kaempferol- 3-O--D-galactopyranoside (2), kaempferol-3-O--D-glucopyranoside (3), quercetin-3-O--D-glucopyranoside (4), mandelic acid amide--D-glucopyranoside (5), kaempferol-3-O-[-D-glucopyranosyl-(14)--D-galactopyranoside] (6), mandelonitrile--D-glucopyranosyl-(16)- -D- glucopyranoside (amygdalin) (7) were isolated from the methanolic extract of the leaves of Prunus persica (L.) Batsch “Meet Ghamr” peach. Furthermore, persicogenin (8), naringenin (9), aromadenderin (10), eriodictyol (11), persicogenin-3-O--D-glucopyranoside (12) and hesperitin-5-O--D-glucopyranoside (13) were isolated from the methanolic extract of the stem bark of the title plant. All these compounds were isolated for the first time from “Meet Ghamr“ peach while compounds 5 and 6 were firstly reported from the genus Prunus. Identification of these compounds has been established by physical, chemical and spectral methods (UV, IR, FAB-MS, 1-D-and 2-D NMR).
Research Authors
Enaam Y. Backheet, Salwa F. Farag, Amany S. Ahmed and Hanaa M. Sayed
Research Department
Research Journal
Bulletin of Pharmaceutical Sciences
Research Member
Research Publisher
Assiut University
Research Rank
2
Research Vol
26 (1)
Research Year
2003

Isoflavonoids and flavone glycosides from rhizomes of Iris carthaliniae

Research Abstract
Two new isoflavonoid biosides, tectorigenin 4′-glucosyl (1→6)glucoside and iristectorigenin B 7-glucosyl (1→6)glucoside, a new isoflavonoid monoside, 4′-methyltectorigenin 7-glucoside and a new flavone glucoside, 6,4′-dimethoxy-5-hydroxyflavone 7-glucoside, together with tectoridin and tectorigenin 4′-glucoside were isolated from rhizomes of Iris carthaliniae. The structures of the isolated compounds were determined by NMR spectral analysis.
Research Authors
Salwa F. Farag, Enaam Y. Backheet, Nasr A. El-Emary and Masatake Niwa
Research Department
Research Journal
Phytochemistry
Research Member
Nasr Ahmed Mohammed Al Amri
Research Publisher
Elsevier
Research Rank
1
Research Vol
50 (8)
Research Year
1999
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