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1. (Article ID: 9827)
Liu HW, Nakanishi K
A micromethod for determining the branching points in oligosaccharides based on circular dichroism
Journal of the American Chemical Society 103 (1981)
7005-7006
Publication DOI: 10.1021/ja00413a057Journal NLM ID: 7503056Publisher: American Chemical Society
Institutions: Department of Chemistry, Columbia University, New York, New York, USA
Methods: TLC, acid hydrolysis, methanolysis, CI-MS, CD, Hakomori method
The publication contains the following compound(s):
- Compound ID: 23943
|
a-L-Rhap-(1-2)-+
|
b-D-Xylp-(1-6)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-Subst
Subst = yamogenin = SMILES C[C@H]1[C@H]2[C@H](C[C@@H]3[C@@]2(CC[C@H]4[C@H]3CC=C5[C@@]4(CC{3}[C@@H](C5)O)C)C)O{22}[C@@]1(CC[C@H](C){26}[CH2]O)O |
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Structure type: oligomer
Trivial name: balanitin 2
Compound class: saponin glycoside
Reference(s) to other database(s): CCSD:
11192, CBank-STR:10611
- Compound ID: 23944
|
a-L-Rhap-(1-2)-+
|
a-L-Rhap-(1-2)-b-D-Glcp-(1-4)-b-D-Glcp-(1-3)-Subst
Subst = yamogenin = SMILES C[C@H]1[C@H]2[C@H](C[C@@H]3[C@@]2(CC[C@H]4[C@H]3CC=C5[C@@]4(CC{3}[C@@H](C5)O)C)C)O{22}[C@@]1(CC[C@H](C){26}[CH2]O)O |
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Structure type: oligomer
Trivial name: balanitin 1
Compound class: saponin glycoside
Reference(s) to other database(s): CCSD:
11193, CBank-STR:10213
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2. (Article ID: 11394)
Deng SJ, Yu B, Hui YZ
A facile synthetic approach to a group of structurally typical diosgenyl saponins
Tetrahedron Letters 39(36) (1998)
6511-6514
Five new steroids, the cholest-4-ene-3,22-diones : tumacone A (1), tumacone B (2), tumacoside A (3), tumacoside B (4), and a furostenone: tumaquenone (5), besides diosgenone (6), were isolated from the aerial parts of Solanum nudum. Their structures were determined by 2D NMR, MS analyses and chemical correlations. Steroid 3 and 5 displayed in vitro antimalarial activity against a Plasmodium falciparum chloroquine-resistant FCB-1 strain (IC50 27 and 16 mu M). The observed stereodependent cyclization into spiroketals of two 16-O isomers is discussed.
antimalarial, steroids, Solanum nudum, cholest-4-en-3, 22-dione, tumacones A and B, tumacosides A and B, tumaquenone, stereodependent cyclization
Publication DOI: 10.1016/S0040-4039(98)01354-9Journal NLM ID: 2984819RPublisher: Elsevier
Institutions: State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
Methods: 13C NMR, 1H NMR, EI-MS, IR, optical rotation measurement, CC, NOESY, HR-FAB-MS, extraciton
The publication contains the following compound(s):
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