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1. |
Constituents ofTephrosia Uniflora |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 81-86
PedroM. Abreu,
MariaH. Luis,
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摘要:
Elongatin (1), 12a-hydroxyrotenone (5), β-sitosterol and stigmasterol have been isolated and identified from the stems and leaves ofTephrosia uniflora.
ISSN:1057-5634
DOI:10.1080/10575639608044930
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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2. |
Isolation of Illudin S from the Mature Basidiocarp ofOmphalotus Illudens, and Isolation of Illudins S and M from the Fermentation Broth ofOmphalotus Olearis |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 87-95
ThomasG. McCloud,
PaulA. Klueh,
KayC. Pearl,
LauraK. Cartner,
GaryM. Muschik,
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摘要:
The cytotoxic sesquiterpene illudin S was isolated from the fruiting body of the fungusOmphalotus illudens. From the fermentation broth ofOmphalotus olearis, ATCC-11719, both illudin S and illudin M were isolated. Normal and reverse phase HPLC analytical methods for the title compounds were developed.
ISSN:1057-5634
DOI:10.1080/10575639608044931
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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3. |
Unusual Reaction of Sodium Borohydride with Flavones in Trifluoroacetic Acid |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 97-104
G. Lewin,
C. Schaeffer,
P.-H. Lambert,
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摘要:
Reaction of 5-hydroxy or 5-acetoxy flavones with NaBH4in CF3COOH provides zwitterionic boroflavylium complexes instead of expected reduction products.1H,13C,19F,11B NMR and mass spectrometry of these complexes are described.
ISSN:1057-5634
DOI:10.1080/10575639608044932
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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4. |
A New Norsesterterpene Peroxide from a Red Sea Sponge |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 105-112
Yuewei Guo,
Margherita Gavagnin,
Ernesto Mollo,
Enrico Trivellone,
Guido Cimino,
NehalAly Hamdy,
Issa Fakhr,
Maurizio Pansini,
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摘要:
A new norsesterterpene cyclic peroxide, named hurghaperoxide (1), has been isolated from an undescribed Red Sea sponge. The structure of this novel molecule was determined mainly by detailed spectroscopic analysis.
ISSN:1057-5634
DOI:10.1080/10575639608044933
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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5. |
Modified Iridoid Glycosides (Part-II) Syntheses of Iridoid Glycosides containing Unusual Sugars from Loganin and 7-Dehydrologanin+ |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 113-120
VijayavitthalT. Mathad,
K. Raj,
A.P. Bhaduri,
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摘要:
General procedure for the syntheses of hitherto unknown iridoid glycosides containing unusual sugars from loganin (1) and 7-dehydrologanin (15) have been described.
ISSN:1057-5634
DOI:10.1080/10575639608044934
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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6. |
A New Flavonol Tetraglycoside fromMyrsine AfricanaLeaves |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 121-126
LawrenceO. A. Manguro,
JacobOgweno Midiwo,
Wolgang Kraus,
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摘要:
A new flavonol glycoside, quercetin 3 - glucosyl (1′″ - 4″) rhamnoside - 7 -rhamnosyl (1′″ - 6″″) glucoside (1) together with known flavonol glycosides, quercetin 3 -rhamnoside (2), quercetin 3 - glucoside (3) and myricetin 3 - galactoside (4) have been isolated from methanolic extract ofMyrsine africanaleaves and identified on the basis of their spectral data.
ISSN:1057-5634
DOI:10.1080/10575639608044935
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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7. |
Flexibilolide and Dihydroflexibilolide, The First Trihydroxy-Cembranolide Lactones from the Soft CoralSinularia Flexibilisof the Indian Ocean |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 127-135
A.S. R. Anjaneyulu,
K.S. Sagar,
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摘要:
Chemical examination of the ethyl acetate extract of the soft coral Sinularia flexibilis collected from the Diglipur Island of Andaman & Nicobar group of Islands of the Indian Ocean furnished the first trihydroxycembranolide six membered lactones, flexibilolide and dihydroflexibilolide. Their structures have been established by a study of their spectral [UV, IR,1H &13C NMR, 2D NMR (1H-1H &1H-13C COSY & NOESY) and Mass] data.
ISSN:1057-5634
DOI:10.1080/10575639608044936
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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8. |
A Cytotoxic Melanin Precursor, 5,6-Dihydroxyindole, from the Folkloric Anti-Cancer PlantRhaphidophora Korthalsii |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 137-140
K.T. Wong,
B.K. H. Tan,
K.Y. Sim,
S.H. Goh,
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摘要:
5,6-Dihydroxyindole (1a) was isolated by bioactivity-directed fractionation from fresh leaves ofRhaphidophora korthalsii. The unstable compound and its stable diacetate (1b) were characterized spectroscopically and confirmed by synthesis. The ED50of 1a against P388 cells was 3.5 μg/ml.
ISSN:1057-5634
DOI:10.1080/10575639608044937
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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9. |
Disepalin, a New Acetogenin fromDisepalum Anomalum(Annonaceae) |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 141-151
G.C. L. Ee,
C.H. Chuah,
C.K. Sha,
S.H. Goh,
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摘要:
A new acetogenin, Disepalin, has been isolated from the stem bark ofDisepalum anomalumand its structure established by NMR spectroscopy and mass spectrometry. This is the first time that an acetogenin has been isolated from the genusDisepalum.
ISSN:1057-5634
DOI:10.1080/10575639608044938
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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10. |
Biochemical Synthesis of 2,6-Dimethoxy-Para- Benzoquinone - A Haustorial Stimulant ofStriga Asiatica(L.) Kuntze |
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Natural Product Letters,
Volume 9,
Issue 2,
1996,
Page 153-159
Elsbeth Frick,
Dietrich Frahne,
Klaus Wegmann,
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摘要:
Syringic acid reacted in a reaction system containing hydrogen peroxide and peroxidase to give 2,6-dimethoxy-p-benzoquinone. The reaction product was identified using different spectroscopic techniques and by HPLC. This reaction might have biological importance as the natural synthesis pathway of 2,6-dimethoxy-p-benzoquinone has not been discovered up to now.
ISSN:1057-5634
DOI:10.1080/10575639608044939
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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