Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Colette Laffite"'
Publikováno v:
Phytochemistry. 21:1123-1127
The complete structural elucidation of the two caffeic acid sugar esters verbascoside and orobanchoside, has been realized by 1 H and 13 C NMR studies. It has been demonstrated that verbascoside is β-(3′,4′-dihydroxyphenyl)ethyl- O -α- L -rhamn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbe3fed67cca44a719f9277bf53add5d
https://doi.org/10.1016/s0031-9422(00)82429-2
https://doi.org/10.1016/s0031-9422(00)82429-2
Publikováno v:
Organic Magnetic Resonance. 17:110-117
The 1H and 13C NMR spectra of 2,3-disubstituted exo-5,6- and endo-5,6-bicyclo[2.2.2]octanes, and the corresponding alkanes, have been investigated to determine the effects exerted by an oxirane ring. The 1H NMR study showed that the anti protons, H-7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c53860c0d549b5fb965abd27ef005264
https://doi.org/10.1002/mrc.1270170207
https://doi.org/10.1002/mrc.1270170207
Publikováno v:
Organic Magnetic Resonance. 20:154-158
1H and 13C NMR chemical shifts are reported for several rhamnobioses and their acetylated derivatives. The effect of substitution on the rhamnose unit has been determined with respect to the anomeric carbons and linked carbons. These effects have bee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c8e5825171c42ccaa74b0a6f427b8ab
https://doi.org/10.1002/mrc.1270200308
https://doi.org/10.1002/mrc.1270200308
Autor:
Anne-Marie Nguyen Phuoc Du, Francois Winternitz, Colette Laffite, Renée Wylde, Flore Pratviel-Sosa
Publikováno v:
Carbohydrate Research. 67:91-103
Various di- and tri-saccharides containing l -rhamnose were synthesized by condensation of 2,3,4-tri-O-acetyl- or 2,3,4-tri-O-benzoyl-α- l -rhamnopyranosyl bromide with an unblocked glycopyranoside. The determination of the anomeric configuration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc8d58cc05f40699adc0ebcb28d3c9ba
https://doi.org/10.1016/s0008-6215(00)83733-7
https://doi.org/10.1016/s0008-6215(00)83733-7
Autor:
Flore Pratviel-Sosa, Colette Laffite, Anne Marie Nguyen Phuoc Du, Renée Wylde, Francois Winternitz
Publikováno v:
Carbohydrate Research. 67:105-115
The 13 C-n.m.r. spectra of O -α- l -rhamnopyranosyl-(1→3)- l -rhamnopyranose, O -α- l -rhamnopyranosyl-(1→6)- d -galacto- and d -gluco-pyranose together with those of their acetyl derivatives have been investigated. This study has led to a comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaddae78c67ae6265d91e1a56da4c2d1
https://doi.org/10.1016/s0008-6215(00)83734-9
https://doi.org/10.1016/s0008-6215(00)83734-9
Publikováno v:
Organic Magnetic Resonance. 12:77-82
Les spectres RMN du 13C de dimethylamino-2 cyclohexanols, des quatre dimethylamino-3 decahydronaphtols-2 trans et de leurs iodures d'ammonium quaternaires sont decrits. Le calcul des seplacements chimiques de chaque carbone en tenant compte des inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cefc77100e4de66ef874dcd19a0c39a
https://doi.org/10.1002/mrc.1270120207
https://doi.org/10.1002/mrc.1270120207
Publikováno v:
Zeitschrift für Naturforschung C. 37:351-353
The structure of echinacoside, isolated from Echinacea angustifolia D.C. (Asteraceae) roots has been determided by 1H-NMR-and 13C-NMR-spectra to be β-(3′,4′-dihydroxyphenyl)-ethyl-O-α-ʟ-rhamnopyranosyl (1 → 3)-O-β-ᴅ-[β-ᴅ-glucopyranosyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b61795fb725a1c72d3e3cb4e3c13b43
https://doi.org/10.1515/znc-1982-5-601
https://doi.org/10.1515/znc-1982-5-601
Publikováno v:
Phytochemistry. 24:362-364
A new caffeic glycoside ester, poliumoside, has been isolated from the aerial parts of Teucrium belion . Its structure, [β-(3′,4′-dihydroxyphenyl)-ethyl]-(3,6- O -α- L -dirhamnopyranosyl)-(4- O -caffeoyl)-β- D -glucopyranoside, was established
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca61b26a68a9ebff1492c2d90b7f801c
https://doi.org/10.1016/s0031-9422(00)83557-8
https://doi.org/10.1016/s0031-9422(00)83557-8