Found 135 structures.
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1. Compound ID: 18817
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Gallic3Me5Me-(7-6)-b-D-Glcp-(1-5)-Subst2Me-(1-1)-Me
Subst = 5-hydroxypyrogallol = SMILES {1}OC1={2}C(O){3}C(O)=C{5}C(O)=C1 |
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Structure type: monomer
Compound class: glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 7407
Cheng MJ, Wu MD, Yuan GF, Su YS, Yanai H "Secondary metabolites produced by the fungus Monascus pilosus and their anti-inflammatory activity" -
Phytochemistry Letters 5(3) (2012) 567-571
A detailed phytochemical study of the n-BuOH-soluble fraction of the 95% EtOH extract of red yeast rice fermented with the fungus Monascus pilosus BCRC 38072 (Eurotiaceae) revealed a new azaphilone derivative, namely monascusazaphilol (1) (rel-(3S,3aR,9aR)-3-(1-hydroxydecyl)-9a-methyl-6-((E)- propenyl)-3a,4,8,9a-tetrahydro-3H-furo[3,2-g]isochromene-2,9-dione), along with ten known compounds (2-11). Their structures were established by direct interpretation of their spectral data, mainly high resolution electrospray ionization mass spectrometry (HR-ESI-MS), 1D and NMR-2D (COSY, ROESY, HSQC and HMBC), and comparison of the spectroscopic data with those reported for structurally related compounds. We also evaluated the inhibitory effects of some isolates on the production of tumor necrosis factor (TNF-α) induced by lipopolysaccharide (LPS). Among the isolates, compounds 1-3 inhibited TNF-α production in U937 cells in vitro, and the IC 50 values were 1.24, 2.35 and 3.75 μg/ml, respectively
metabolites, anti-inflammatory activity, azaphilone, Monascus pilosus, red yeast rice
Publication DOI: 10.1016/j.phytol.2012.05.015Journal NLM ID: 101513432Publisher: Amsterdam: Elsevier
Correspondence: chengmingjen2001@yahoo.com.tw
Institutions: Bioresource Collection and Research Center (BCRC), Food Industry Research and Development Institute (FIRDI), Hsinchu, Taiwan, Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, Kino Dental Clinical, Hokkaido, Japan
Methods: 13C NMR, 1H NMR, NMR-2D, IR, TLC, ESI-MS, UV, extraction, CC, cytokine production, cytotoxicity assay, DEPT
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2. Compound ID: 26204
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Gallic-(7-6)-b-D-Glcp-(1-3)-3,4,8HOPhet
xXGallic = gallic acid;
3,4,8HOPhet = phenylethane-3,4,8-triol |
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Structure type: monomer
Trivial name: rocymosin A
Compound class: phenylethanoid glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 10619
Yoshida T, Feng WS, Okuda T "Two polyphenol glycosides and tannins from Rosa cymosa" -
Phytochemistry 32 (1993) 1033-1036
root, tannin, rosaceae, Rosa cymosa, procyanidin, 3-O-(6′-O-galloyl)-β-d-glycosyl-4-hydroxyphenethyl alcohol, rocymosin A
Publication DOI: 10.1016/0031-9422(93)85250-UJournal NLM ID: 0151434Publisher: Elsevier
Institutions: Faculty of Pharmaceutical Sciences, Okayama University, Tsushima, Okayama, Japan, Henan College of Traditional Chinese Medicine, Zhengzhou, China
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3. Compound ID: 27026
Structure type: monomer
; 485 [M+H]+
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 10859
Mekkawy SE, Meselhy MR, Kusumoto IT, Kadota S, Hattori M, Namba T "Inhibitory effects of Egyptian folk medicines on human immunodeficiency virus (HIV) reverse transcriptase" -
Chemical and Pharmaceutical Bulletin 43(4) (1995) 641-648
Extracts of 41 medicinal plants used in Egyptian folk medicine were screened for their inhibitory effects on human immunodeficiency virus-1 reverse transcriptase. The extracts of fruits of Phyllanthus emblica, Quercus pedunculata, Rumex cyprius, Terminalia bellerica, Terminalia chebula and Terminalia horrida showed significant inhibitory activity with IC_<50>≦50 μg/ml. Through a bioassay guided-fractionation of the methanol extract of the fruit of P. emblica, putranjivain A (1) was isolated as a potent inhibitory substance with IC_<50>=3.9 μM, together with 1,6-di-O-galloyl-β-D-glucose (2), 1-O-galloyl-β-D-glucose (3), kaempferol-3-O-β-D-glucoside (4), quercetin-3-O-β-D-glucoside (5) and digallic acid (6). The inhibitory mode of action by 1,2 and 6 was non-competitive with respect to the substrate but competitive with respect to a template-primer. Furthermore, the stereochemistry of 1 was established in this paper by nuclear magnetic resonance spectroscopy.
Hiv-1, reverse transcriptase inhibition, Egyptian folk medicine, Phyllanthus emblica, tannins, putranjivain A
NCBI PubMed ID: 7541317Publication DOI: 10.1248/cpb.43.641Journal NLM ID: 0377775Publisher: Pharmaceutical Society Of Japan
Institutions: Research Institute for Wakan-Yaku (Traditional Sino-Japanese Medicines), Japan, Faculty of Pharmacy, Cairo University, Egypt
Methods: 13C NMR, 1H NMR, FAB-MS, TLC, UV, biological assay
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4. Compound ID: 27027
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Subst1-(3-3:3'-6)-+
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Subst2-(2-2:2'-4)-b-D-Glcp-(1-7)-Gallic
Subst1 = hexahydroxydiphenic acid = SMILES O{3}C1={4}C(O){5}C(O)=C(C2={55}C(O){54}C(O)={53}C(O)C=C2{57}C(O)=O)C({7}C(O)=O)=C1;
Subst2 = putranjivain A aglycon = SMILES O={2}C(O)C1=CC(O)=C(O)C2=C1[C@@]([C@@](C[C@@]3(O)O4)({52}C(O)=O)[C@H](O5)[C@@]64[C@H](O)[C@@H](O)CO6)([H])[C@@]5(O)[C@@]3(O)O2 |
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Structure type: monomer
; 1083 [M-H]-
C46H35O31
Trivial name: putranjivain A
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 10859
Mekkawy SE, Meselhy MR, Kusumoto IT, Kadota S, Hattori M, Namba T "Inhibitory effects of Egyptian folk medicines on human immunodeficiency virus (HIV) reverse transcriptase" -
Chemical and Pharmaceutical Bulletin 43(4) (1995) 641-648
Extracts of 41 medicinal plants used in Egyptian folk medicine were screened for their inhibitory effects on human immunodeficiency virus-1 reverse transcriptase. The extracts of fruits of Phyllanthus emblica, Quercus pedunculata, Rumex cyprius, Terminalia bellerica, Terminalia chebula and Terminalia horrida showed significant inhibitory activity with IC_<50>≦50 μg/ml. Through a bioassay guided-fractionation of the methanol extract of the fruit of P. emblica, putranjivain A (1) was isolated as a potent inhibitory substance with IC_<50>=3.9 μM, together with 1,6-di-O-galloyl-β-D-glucose (2), 1-O-galloyl-β-D-glucose (3), kaempferol-3-O-β-D-glucoside (4), quercetin-3-O-β-D-glucoside (5) and digallic acid (6). The inhibitory mode of action by 1,2 and 6 was non-competitive with respect to the substrate but competitive with respect to a template-primer. Furthermore, the stereochemistry of 1 was established in this paper by nuclear magnetic resonance spectroscopy.
Hiv-1, reverse transcriptase inhibition, Egyptian folk medicine, Phyllanthus emblica, tannins, putranjivain A
NCBI PubMed ID: 7541317Publication DOI: 10.1248/cpb.43.641Journal NLM ID: 0377775Publisher: Pharmaceutical Society Of Japan
Institutions: Research Institute for Wakan-Yaku (Traditional Sino-Japanese Medicines), Japan, Faculty of Pharmacy, Cairo University, Egypt
Methods: 13C NMR, 1H NMR, FAB-MS, TLC, UV, biological assay
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5. Compound ID: 27028
Structure type: monomer
; 333 [M+H]+
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 10859
Mekkawy SE, Meselhy MR, Kusumoto IT, Kadota S, Hattori M, Namba T "Inhibitory effects of Egyptian folk medicines on human immunodeficiency virus (HIV) reverse transcriptase" -
Chemical and Pharmaceutical Bulletin 43(4) (1995) 641-648
Extracts of 41 medicinal plants used in Egyptian folk medicine were screened for their inhibitory effects on human immunodeficiency virus-1 reverse transcriptase. The extracts of fruits of Phyllanthus emblica, Quercus pedunculata, Rumex cyprius, Terminalia bellerica, Terminalia chebula and Terminalia horrida showed significant inhibitory activity with IC_<50>≦50 μg/ml. Through a bioassay guided-fractionation of the methanol extract of the fruit of P. emblica, putranjivain A (1) was isolated as a potent inhibitory substance with IC_<50>=3.9 μM, together with 1,6-di-O-galloyl-β-D-glucose (2), 1-O-galloyl-β-D-glucose (3), kaempferol-3-O-β-D-glucoside (4), quercetin-3-O-β-D-glucoside (5) and digallic acid (6). The inhibitory mode of action by 1,2 and 6 was non-competitive with respect to the substrate but competitive with respect to a template-primer. Furthermore, the stereochemistry of 1 was established in this paper by nuclear magnetic resonance spectroscopy.
Hiv-1, reverse transcriptase inhibition, Egyptian folk medicine, Phyllanthus emblica, tannins, putranjivain A
NCBI PubMed ID: 7541317Publication DOI: 10.1248/cpb.43.641Journal NLM ID: 0377775Publisher: Pharmaceutical Society Of Japan
Institutions: Research Institute for Wakan-Yaku (Traditional Sino-Japanese Medicines), Japan, Faculty of Pharmacy, Cairo University, Egypt
Methods: 13C NMR, 1H NMR, FAB-MS, TLC, UV, biological assay
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6. Compound ID: 27244
Structure type: monomer
; 617 [M+H]+
Compound class: flavonol glycoside
Contained glycoepitopes: IEDB_136044,IEDB_137472,IEDB_141794,IEDB_190606,SB_165,SB_166,SB_187,SB_195,SB_7,SB_88
The structure is contained in the following publication(s):
- Article ID: 10931
Ducrey B, Wolfender JL, Marston A, Hostettmann K "Analysis of flavonol glycosides of thirteen Epilobium species (Onagraceae) by LC-UV and thermospray LC-MS" -
Phytochemistry 38 (1995) 129-137
Analysis of the flavonol glycoside patterns of 13 Epilobium species was carried out by thermospray liquid chromatography-mass spectrometry (TSP/LC-MS) and high performance liquid chromatography coupled with a photodiode array detector (LC-UV). Mass-data and UV spectra recorded online, before and after post-column addition of shift reagents, provided useful structural information on the different compounds present in crude extracts. Nineteen flavonol glycosides were identified by this means. In order to confirm the on-line assignments, 13 of the compounds were isolated and their structures were elucidated. They were all 3-O-glycosides of kaempferol, quercetin and myricetin.
chemotaxonomy, LC-MS, flavonoids, flavonol glycosides, Epilobium, Onagraceae, LC-UV
Publication DOI: 10.1016/0031-9422(94)00629-8Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Institut de pharmacognosie et phytochimie, Ecole de Pharmacie, Université de Lausanne, Lausanne, Switzerland
Methods: 13C NMR, 1H NMR, UV, LC-MS, DCI-MS, HPLC-MS, HPLC-UV, LC-UV
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7. Compound ID: 27248
Structure type: monomer
; 633 [M+H]+
Compound class: glycoside
Contained glycoepitopes: IEDB_136044,IEDB_137472,IEDB_141794,IEDB_190606,SB_165,SB_166,SB_187,SB_195,SB_7,SB_88
The structure is contained in the following publication(s):
- Article ID: 10931
Ducrey B, Wolfender JL, Marston A, Hostettmann K "Analysis of flavonol glycosides of thirteen Epilobium species (Onagraceae) by LC-UV and thermospray LC-MS" -
Phytochemistry 38 (1995) 129-137
Analysis of the flavonol glycoside patterns of 13 Epilobium species was carried out by thermospray liquid chromatography-mass spectrometry (TSP/LC-MS) and high performance liquid chromatography coupled with a photodiode array detector (LC-UV). Mass-data and UV spectra recorded online, before and after post-column addition of shift reagents, provided useful structural information on the different compounds present in crude extracts. Nineteen flavonol glycosides were identified by this means. In order to confirm the on-line assignments, 13 of the compounds were isolated and their structures were elucidated. They were all 3-O-glycosides of kaempferol, quercetin and myricetin.
chemotaxonomy, LC-MS, flavonoids, flavonol glycosides, Epilobium, Onagraceae, LC-UV
Publication DOI: 10.1016/0031-9422(94)00629-8Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Institut de pharmacognosie et phytochimie, Ecole de Pharmacie, Université de Lausanne, Lausanne, Switzerland
Methods: 13C NMR, 1H NMR, UV, LC-MS, DCI-MS, HPLC-MS, HPLC-UV, LC-UV
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8. Compound ID: 27633
|
Gallic-(7-2)-a-D-Glcp-(3-7')-Subst
Subst = valoneic acid dilactone = SMILES O{7}C1=C(C=C(C2=C1OC(C3=C24)=O)C(OC4={2}C({3}C(O)=C3)O)=O)OC5={53}C({54}C(O)={55}C(C=C5{57}C(O)=O)O)O |
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Structure type: monomer
; 783 [M-H]-
Compound class: flavonoid
Contained glycoepitopes: IEDB_142488,IEDB_144998,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11089
Barakat HH, Hussein SAM, Marzouk MS, Merfort I, Linscheid M, Nawwar MAM "Polyphenolic metabolites of Epilobium hirsutum" -
Phytochemistry 46(5) (1997) 935-941
Evaluation of the constitutive polyphenolics of the whole plant extract of Epilobium hirsutum was carried out by reverse-phase HPLC. The unique ellagitannins, 2-O-galloyl 3-O-valoneoyl dilactone-(α/β)-C-4(1)-glucopyranose, 1'-monodecarboxyvaloneic acid dilactone and valoneic dilactone dioxine were isolated and characterized. The known polyphenolics, gallic, protocatechuic, ellagic, valoneic dilactone and p-coumaric acids, methyl gallate, p-methoxy gallic acid methyl ester, 6-O-galloylglucose, 1,6-di-O-galloylglucose, 2,3-di-O-galloylglucose, 1,2,6-tri-O-galloylglucose and the 3-O-glucuronides, 3-O-arabinosides and 3-O-rhamnosides of kaempferol, quercetin and myricetin, their free aglycones 3-O-galactoside and quercetin and myricetin were also identified. The structures were established by conventional methods of analysis and confirmed by H-1, C-13 NMR and negative ESI-mass spectrometry. 2D-long range selective proton decoupling and chemical shift correlation NMR experiments were applied for the new polyphenolics. The HPLC phenolic profile was used for the quality.
NMR, flavonoids, Onagraceae, Epilobium hirsutum, ellagitannins, gallotannins, 2-O-galloyl 3-O-valoneoyl dilactone-(a/b)-4C1-glucopyranose, 1’-monodecarboxyvaloneic acid dilactone, valoneic dilactone dioxine, HPLC quality assessment of the extract
Publication DOI: 10.1016/S0031-9422(97)00370-1Journal NLM ID: 0151434Publisher: Elsevier
Institutions: National Research Centre, Dokki, Cairo, Egypt, Institut für Pharmazeutische Biologie Heinrich-Heine-Universität Düsseldorf, Universitätstrasse I, 40225 Düsseldorf, Germany
Methods: 13C NMR, 1H NMR, ESI-MS, paper chromatography, RP-HPLC
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9. Compound ID: 27634
|
Gallic-(7-2)-b-D-Glcp-(3-7')-Subst
Subst = valoneic acid dilactone = SMILES O{7}C1=C(C=C(C2=C1OC(C3=C24)=O)C(OC4={2}C({3}C(O)=C3)O)=O)OC5={53}C({54}C(O)={55}C(C=C5{57}C(O)=O)O)O;
Gallic = 3,4,5-hydroxybenzoic (gallic) acid |
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Structure type: monomer
; 783 [M-H]-
Compound class: flavonol glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11089
Barakat HH, Hussein SAM, Marzouk MS, Merfort I, Linscheid M, Nawwar MAM "Polyphenolic metabolites of Epilobium hirsutum" -
Phytochemistry 46(5) (1997) 935-941
Evaluation of the constitutive polyphenolics of the whole plant extract of Epilobium hirsutum was carried out by reverse-phase HPLC. The unique ellagitannins, 2-O-galloyl 3-O-valoneoyl dilactone-(α/β)-C-4(1)-glucopyranose, 1'-monodecarboxyvaloneic acid dilactone and valoneic dilactone dioxine were isolated and characterized. The known polyphenolics, gallic, protocatechuic, ellagic, valoneic dilactone and p-coumaric acids, methyl gallate, p-methoxy gallic acid methyl ester, 6-O-galloylglucose, 1,6-di-O-galloylglucose, 2,3-di-O-galloylglucose, 1,2,6-tri-O-galloylglucose and the 3-O-glucuronides, 3-O-arabinosides and 3-O-rhamnosides of kaempferol, quercetin and myricetin, their free aglycones 3-O-galactoside and quercetin and myricetin were also identified. The structures were established by conventional methods of analysis and confirmed by H-1, C-13 NMR and negative ESI-mass spectrometry. 2D-long range selective proton decoupling and chemical shift correlation NMR experiments were applied for the new polyphenolics. The HPLC phenolic profile was used for the quality.
NMR, flavonoids, Onagraceae, Epilobium hirsutum, ellagitannins, gallotannins, 2-O-galloyl 3-O-valoneoyl dilactone-(a/b)-4C1-glucopyranose, 1’-monodecarboxyvaloneic acid dilactone, valoneic dilactone dioxine, HPLC quality assessment of the extract
Publication DOI: 10.1016/S0031-9422(97)00370-1Journal NLM ID: 0151434Publisher: Elsevier
Institutions: National Research Centre, Dokki, Cairo, Egypt, Institut für Pharmazeutische Biologie Heinrich-Heine-Universität Düsseldorf, Universitätstrasse I, 40225 Düsseldorf, Germany
Methods: 13C NMR, 1H NMR, ESI-MS, paper chromatography, RP-HPLC
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10. Compound ID: 27659
|
b-D-Glcp-(1-7)-Gallic
Gallic = 3,4,5-hydroxybenzoic (gallic) acid |
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Structure type: monomer
Trivial name: 1-O-galloyl-b-D-glucose
Compound class: tannin
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11097
Ma YT, Chuang JI, Lin JH, Hsu FL "Phenolics from Acalypha indica" -
Journal of the Chinese Chemical Society = Zhongguo hua hsueh hui hui zhi 44(5) (1997) 499-502
Two novel hydrolysable tannins, potassium brevifolincarboxylate and acaindinin, together with eight known tannins-1-O-galloyl-β-D-glucose, 1,2,3,6-tetra-O-galloyl-β-D-glucose, corilagin, geraniin, acetonylgeraniin A, euphormisin M-2, repandusinic acid A, and chebulagic acid, as well as two flavonoid glycosides-quercetin 3-O-β-D-glucoside and rutin, were isolated from Acalypha indica. Their structures were elucidated on the basis of chemical and spectroscopic evidence.
flavonoid, Euphorbiaceae, Acalypha indica, Phenolic;, Hydrolysable tannin, Potassium brevifolincarboxylate, Acaindinin
Publication DOI: 10.1002/jccs.199700075Journal NLM ID: 16210600RPublisher: Taipei: Chinese Chemical Society
Institutions: Department ofBiochemistry, Taipei Medical College, Taipei. Taiwan, R.O.C.
Methods: 13C NMR, 1H NMR, NMR-2D, IR, FAB-MS
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11. Compound ID: 27660
|
Subst-(6'-4:7"-2)-b-D-Glcp-(1-7)-Gallic
Subst = acaindinin aglycon = SMILES OC1=C2O[C@@]3([C@@](C2=C(C=C1O){107}C(O)=O)([H])C({56}C(O)=O)(CC3O)O)O;
Gallic = 3,4,5-hydroxybenzoic (gallic) acid |
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Structure type: monomer
Trivial name: acaindinin
Compound class: tannin
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11097
Ma YT, Chuang JI, Lin JH, Hsu FL "Phenolics from Acalypha indica" -
Journal of the Chinese Chemical Society = Zhongguo hua hsueh hui hui zhi 44(5) (1997) 499-502
Two novel hydrolysable tannins, potassium brevifolincarboxylate and acaindinin, together with eight known tannins-1-O-galloyl-β-D-glucose, 1,2,3,6-tetra-O-galloyl-β-D-glucose, corilagin, geraniin, acetonylgeraniin A, euphormisin M-2, repandusinic acid A, and chebulagic acid, as well as two flavonoid glycosides-quercetin 3-O-β-D-glucoside and rutin, were isolated from Acalypha indica. Their structures were elucidated on the basis of chemical and spectroscopic evidence.
flavonoid, Euphorbiaceae, Acalypha indica, Phenolic;, Hydrolysable tannin, Potassium brevifolincarboxylate, Acaindinin
Publication DOI: 10.1002/jccs.199700075Journal NLM ID: 16210600RPublisher: Taipei: Chinese Chemical Society
Institutions: Department ofBiochemistry, Taipei Medical College, Taipei. Taiwan, R.O.C.
Methods: 13C NMR, 1H NMR, NMR-2D, IR, FAB-MS
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12. Compound ID: 27690
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Gallic-(7-6)-+
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Gallic-(7-2)-b-D-Glcp-(1-3)-Kaempferol
xXGallic = gallic acid |
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Structure type: monomer
Trivial name: loropetalin D
Compound class: flavonol glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11104
Liu YZ, Wu YJ, Yuan K, Ji CR, Hou A, Yoshida T, Okuda T "Astragalin 2",6"-di-O-gallate from Loropetalum chinense" -
Phytochemistry 46(2) (1997) 389-391
A new galloylated flavonol glycoside, astragalin 2",6"-di-O-gallate (loropetalin D), together with two related flavonol glycosides was isolated from the leaves of Loropetalum chinense. The-two related flavonol glycosides were characterized as astragalin 2 ''-O-gallate and astragalin 6 ''-O-gallate by chemical methods, H-1 and C-13 NMR spectral analysis. The structure of loropetalin D was established by comparison of H-1 and C-13 NMR spectral data with those of the monogallates.
oropetalum chinense, Hamamelidaceae, astragalin 2", 6"-di-O-gallate, Loropetalin D, kaempferol 3-(2", 6"-digalloylglucoside), astragalin 2"-O-gallate and 6"-0-gallate, galloylated flavonol glycosides, hydrolysable tannins
Publication DOI: 10.1016/S0031-9422(97)00295-1Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Department of Phytochemistry, Henan College of Traditional Chinese Medicine, Zhengzhou 450003, China
Methods: 13C NMR, 1H NMR, IR, TLC, chemical methods, HPLC
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13. Compound ID: 27691
Structure type: monomer
Trivial name: astragalin 6"-0-gallate
Compound class: flavonol glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11104
Liu YZ, Wu YJ, Yuan K, Ji CR, Hou A, Yoshida T, Okuda T "Astragalin 2",6"-di-O-gallate from Loropetalum chinense" -
Phytochemistry 46(2) (1997) 389-391
A new galloylated flavonol glycoside, astragalin 2",6"-di-O-gallate (loropetalin D), together with two related flavonol glycosides was isolated from the leaves of Loropetalum chinense. The-two related flavonol glycosides were characterized as astragalin 2 ''-O-gallate and astragalin 6 ''-O-gallate by chemical methods, H-1 and C-13 NMR spectral analysis. The structure of loropetalin D was established by comparison of H-1 and C-13 NMR spectral data with those of the monogallates.
oropetalum chinense, Hamamelidaceae, astragalin 2", 6"-di-O-gallate, Loropetalin D, kaempferol 3-(2", 6"-digalloylglucoside), astragalin 2"-O-gallate and 6"-0-gallate, galloylated flavonol glycosides, hydrolysable tannins
Publication DOI: 10.1016/S0031-9422(97)00295-1Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Department of Phytochemistry, Henan College of Traditional Chinese Medicine, Zhengzhou 450003, China
Methods: 13C NMR, 1H NMR, IR, TLC, chemical methods, HPLC
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14. Compound ID: 27692
Structure type: monomer
Trivial name: astragalin 2"-O-gallate
Compound class: flavonol glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11104
Liu YZ, Wu YJ, Yuan K, Ji CR, Hou A, Yoshida T, Okuda T "Astragalin 2",6"-di-O-gallate from Loropetalum chinense" -
Phytochemistry 46(2) (1997) 389-391
A new galloylated flavonol glycoside, astragalin 2",6"-di-O-gallate (loropetalin D), together with two related flavonol glycosides was isolated from the leaves of Loropetalum chinense. The-two related flavonol glycosides were characterized as astragalin 2 ''-O-gallate and astragalin 6 ''-O-gallate by chemical methods, H-1 and C-13 NMR spectral analysis. The structure of loropetalin D was established by comparison of H-1 and C-13 NMR spectral data with those of the monogallates.
oropetalum chinense, Hamamelidaceae, astragalin 2", 6"-di-O-gallate, Loropetalin D, kaempferol 3-(2", 6"-digalloylglucoside), astragalin 2"-O-gallate and 6"-0-gallate, galloylated flavonol glycosides, hydrolysable tannins
Publication DOI: 10.1016/S0031-9422(97)00295-1Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Department of Phytochemistry, Henan College of Traditional Chinese Medicine, Zhengzhou 450003, China
Methods: 13C NMR, 1H NMR, IR, TLC, chemical methods, HPLC
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15. Compound ID: 27775
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Gallic-(7-6)-+
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Gallic-(7-3)-+ | Subst1-(7-2:7'-4)-+
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Gallic-(7-1)-b-D-Glcp-(2-7")-Subst2-(7-3:7'-6)-a-D-Glcp-(1-7)-Gallic
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Gallic-(7-4)-+
xXGallic = gallic acid;
Subst1 = euphorbin A aglycon 1 = SMILES O=C1C=C([C@@](C(O)([C@@]1(O)O2)O)([H])C3=C2C(O)=C(C=C3{7}C(O)=O)O){57}C(O)=O;
Subst2 = valoneic acid = SMILES OC1=C(O)C=C({107}C(O)=O)C(C2=CC(O)=C(OC3=C(O)C(O)=C(O)C=C3{57}C(O)=O)C=C2{7}C(O)=O)=C1 |
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Structure type: oligomer
Trivial name: euphorbin A
Compound class: flavonol glycoside
Contained glycoepitopes: IEDB_142488,IEDB_144998,IEDB_146664,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 11124
Amakura Y, Kawada K, Hatano T, Agata I, Sugaya T, Nishibe S, Okuda T, Yoshida T "Four new hydrolyzable tannins and an acylated flavonol glycoside from Euphorbia maculata" -
Canadian Journal of Chemistry 75(6) (1997) 727-733
The structure of a new acylated flavonol glycoside from the leaf extract of Euphorbia maculata was characterized as quercetin 3-O-(2",3"-di-O-galloyl)-β-D-glucopyranoside. Four new hydrolyzable tannins together with twelve known tannins were also isolated and their structures were established by spectral and chemical means as 1,2,6-tri-O-galloyl-α-D-glucose, 1-O-galloyl-2,4;3,6-di-O-chebuloyl-β-D-glucose (eumaculin E), and dimers (eumaculins B and D) having a tergalloyl and a macaranoyl group as the linking unit of monomers, respectively.
tannin, Euphorbia maculata, Euphorbiaceane, eumaculine B, eumaculine E
Publication DOI: 10.1139/v97-088Journal NLM ID: 0372705Publisher: National Research Council of Canada Canada
Correspondence: yoshida@pheasant.pharm.okayama-u.ac.jp
Institutions: Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-02, Japan
Methods: 13C NMR, 1H NMR, FAB-MS, TLC, enzymatic hydrolysis, ESI-MS, acid hydrolysis, chemical methods, UV, extraction
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