Zobrazeno 1 - 10
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pro vyhledávání: '"Gomphoside"'
Akademický článek
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Autor:
Franz Dietrich Klingler
This article presents a selection of topics from Professor Frieder W. Lichtenthaler's scientific lifework. It describes his contributions to, and further development of, the nitromethane cyclization of dialdehydes leading to amino sugars and amino nu
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https://explore.openaire.eu/search/publication?articleId=doi_________::f2aff5b1a0f980856e2bf59036ff3bf6
https://doi.org/10.1016/bs.accb.2020.05.001
https://doi.org/10.1016/bs.accb.2020.05.001
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Autor:
Eckehard Cuny
Publikováno v:
Natural Product Communications. 13:1934578X1801300
The milkweed bush Gomphocarpus fruticosus R.Br. found in Australia contains the steroidal glycoside (+)-gomphoside, its derivatives (-)-3'-dehydrogomphoside and (+)-3'- epi-gomphoside, as well as other glycoside compounds. The key structural features
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e67ee644945b9fecc2fb0ff5867540c6
https://doi.org/10.1177/1934578x1801300315
https://doi.org/10.1177/1934578x1801300315
Publikováno v:
Chemistry of Natural Compounds. 31:694-700
Two new glycosides, gomphotin (1) and gomphotoxin (13), and also the known gomphoside (9) have been isolated from the leaves ofGomophocarpus fruticosus. Compounds (1) and (9) contain a 4,6-dideoxyhexosulose residue as the sugar component, and (13) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a23090365b4f33703d397ada8d3e4be5
https://doi.org/10.1007/bf01386182
https://doi.org/10.1007/bf01386182
Autor:
Lydia Rodríguez-Hahn, Gladys Fonseca
Publikováno v:
Phytochemistry. 30:3941-3942
The cardenolides of the aerial parts of Asclepias linaria were isolated and identified as the known calactin, calotoxin, proceroside, gomphoside, desglucouzarin and the new cardenolide 6′-β-coumaroyl desglucouzarin.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bb7a67a9aca5a4a76797ca0c4d4f7ba
https://doi.org/10.1016/0031-9422(91)83440-v
https://doi.org/10.1016/0031-9422(91)83440-v
Publikováno v:
J. Chem. Soc., Perkin Trans. 1. :64-72
Afroside (2) has the same carbohydrate as gomphoside (1), namely a 4,6-dideoxyhexosulose doubly linked to the aglycone at the 2α and 3β positions. It differs from gomphoside in having a 15β-hydroxy-group, the location of which is shown by n.m.r. (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19149fd6e030f957aec2fd402471436e
https://doi.org/10.1039/p19810000064
https://doi.org/10.1039/p19810000064
Publikováno v:
Helvetica Chimica Acta. 52:2276-2303
Reduction of uscharidin (19) with NaBH4 gave a crystalline product C29H42O9 which we formulate as β-tetrahydro-uscharidin (12), it was characterised as a crystalline tri-O-acetyl-derivative 14. The same compound 12 was obtained from calactin (18) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::894f84acc21f3097246b822ae1554855
https://doi.org/10.1002/hlca.19690520811
https://doi.org/10.1002/hlca.19690520811
Publikováno v:
Helvetica Chimica Acta. 52:1940-1954
Gomphogenin = 2α, 3β, 14β-trihydroxy-5α-card-20:22-enolide (6) was synthetised through hydroxylation of uzarigenone (4), followed by reduction with LiAlH[OC(CH3)3]3. Treatment of its di-O-acetylderivative (7) with SOCl2 in pyridine gave di-O-acet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27996826630802fa6abd8b3274801e6e
https://doi.org/10.1002/hlca.19690520719
https://doi.org/10.1002/hlca.19690520719
Akademický článek
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