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1. |
New C13-Norisoprenoids fromApollonias barbujana |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 1-6
Cirilo Pérez,
JuanM. Trujillo,
LuzNelly Almonacid,
Eduardo Navarro,
SimeonaJ. Alonso,
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摘要:
Two new C13-norisoprenoids, (3S,4S,5R,6R)*−3,4,6-tri-hydroxy-5,6-dihydro-β-ionol (1) and (3S,5R,6R)*-3,5,6-trihydroxy-5,6-dihydro-β-ionol (2), were isolated from the leaves ofApollonias barbujana(Lauraceae). Their structures were determined on the basis of spectroscopic analysis.
ISSN:1057-5634
DOI:10.1080/10575639608043230
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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2. |
Cordifoliosides A and B, two New Phenylpropene Disaccharides fromTinospora cordifoliapossessing Immunostimulant Activity |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 7-10
Rakesh Maurya,
Versha Wazir,
Aruna Kapil,
RandhirS. Kapil,
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摘要:
Two new phenylpropene disaccharides 3-[4′-O-β-D-apiosyl-(1″′ → 3″) -O-β-D-glucopyranosyl-3′, 5′-dimethoxyphenyl]-2-trans-propene-1-ol (1) and 3-[4′-O-β-D-glucosyl-(1″′ → 5″)-O-β-D-apiosyl-3′, 5′-dimethoxyphenyl]-2-trans- propene-1-ol (2) were isolated fromT. cordifoliaand screened for immunostimulant activity. The structures were elucidated on the basis of spectroscopic evidences.
ISSN:1057-5634
DOI:10.1080/10575639608043231
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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3. |
New Dialkyl Benzoquinones from Fruits ofMyrsineafricanaL andMaesalanceolata, Forsk |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 11-14
J.Ogweno Midiwo,
L.M. Arot,
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摘要:
Two new natural benzoquinones, 2,5-dihydroxy-3-methyl-6-undecyl-1,4-benzoquinone (1, muketanin) and 2-O-methyl-muketanin (2) have been isolated from fruits ofMyrsine africanaandMaesa lanceolatarespectively.
ISSN:1057-5634
DOI:10.1080/10575639608043232
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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4. |
Isonitenin and Acetylhomoagmatine new Metabolites from the SpongesSpongia OfficinalisandCliona celatacollected at the Galician Coast (NW Spain) |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 15-23
LuisA. Lenis,
Lucía Nuñez,
Carlos Jiménez,
Ricardo Riguera,
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摘要:
Isonitenin (1), a new C-21 difuranoterpene and the new alkaloid acetylhomoagmatine (4) were isolated fromSpongia officinalisandCliona celata. respectively. The absolute stereochemistry of isonitenin (1) was proposed as 9R and that of dihydronitenin (3) as 7R and 9R.
ISSN:1057-5634
DOI:10.1080/10575639608043233
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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5. |
A New Lignan (+)-Myrisfragransin fromMyristica fragrans |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 25-26
Mitsuo Miyazawa,
Hiroyuki Kasahara,
Hiromu Kameoka,
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摘要:
A new lignan (+)-myrisfragransin was isolated from the seed ofMyristica fragrans.
ISSN:1057-5634
DOI:10.1080/10575639608043234
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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6. |
Preparation of a Novel Paclitaxel / Docetaxel Derivative from Taxagifine |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 27-32
Jean-Noel Denis,
AndrewE. Greene,
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摘要:
Taxagifine (1), an unusual taxane isolated fromTaxus baccataandTaxus cuspidata(Taxaceae), has been efficiently transformed through C-13 reduction and acylation into the novel paclitaxel (Taxol®) / docetaxel (Taxotere®) derivative 5.
ISSN:1057-5634
DOI:10.1080/10575639608043235
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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7. |
Chemical Differences Between the NewSenecio hualtaranensisand the Closely RelatedS. Fabrisii. Sesquiterpenes and Pyrrolizidine Alkaloids in Three Further Species |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 33-38
MauricioJ. Pestchanker,
CarlosE. Tonn,
PedroC. Rossomando,
OscarS. Giordano,
Eduardo Guerreiro,
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摘要:
The novel derivative 1α-hydroxy-6β-propionyloxy-9-oxo-10αH-furanoeremophilane was isolated fromSenecio hualtaranensistogether with two known furanoeremophilanes and two pyrrolizidine alkaloids. From the closely related speciesS. fabrisiithe same alkaloids were obtained, but in this case sesquiterpenes were not isolated. The phytochemical analysis of another three species of theSeneciogenus is also reported.
ISSN:1057-5634
DOI:10.1080/10575639608043236
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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8. |
The Chemical Constituents ofRhamnus serratavar.serrata |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 39-42
Beatríz Hernández-Carlos,
Rafael Fernández,
Francisco Delgado,
Joaquín Tamariz,
L.Gerardo Zepeda,
Pedro Joseph-nathan,
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摘要:
The leaves ofRhamnus serrataSchultez var.serratayielded nonacosane, β-sitosterol and the anthraquinone emodine, while the roots afforded 7-hydroxy-5-methoxyphtalide, the anthraquinones emodine, physcion and chrysophanol, the known chromone eugenine and the new 3,5-dihydroxy-7-methoxy-2-methylchromone.
ISSN:1057-5634
DOI:10.1080/10575639608043237
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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9. |
Biologically Active Metabolites from Fungi 71); Aposphaerin A and B Two New Chroman-4-ones fromAposphaeriasp |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 43-48
Karsten Krohn,
Andreas Michel,
Rahim Bahramsari,
Ulrich Flörke,
Hans-Jürgen Aust,
Siegfried Draeger,
Barbara Schulz,
Victor Wray,
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摘要:
Aposphaerin A and B, two new chroman-4-ones, have been isolated from the endophytic fungusAposphaeriasp.
ISSN:1057-5634
DOI:10.1080/10575639608043238
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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10. |
Voafinidine and Voalenine, Novel Indoles of the Aspidosperma-type fromTabernaemontana |
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Natural Product Letters,
Volume 8,
Issue 1,
1996,
Page 49-53
Toh-Seok Kam,
S. Anuradha,
Kah-Yeng Loh,
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摘要:
Novel indole alkaloids of the aspidosperma-type,viz., voafinidine and voalenine were obtained in minor amounts from the leaf extract ofTabernaemontana divaricata(double flower variety). The structures of these alkaloids were elucidated by spectral methods.
ISSN:1057-5634
DOI:10.1080/10575639608043239
出版商:Taylor & Francis Group
年代:1996
数据来源: Taylor
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