1987
DOI: 10.1055/s-2006-962770
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Die Steroidalkaloide vonFuntumia africana1

Abstract: Planta medica 1987 8 = ppm) 7,54 (2H, m); 6,94 (1H, d); 6,41 (1H, d); 6,21 (1H, d); 4,56 -3,00 C-H der Zucker. '3C-NMR (D20, 8 = pm): 157,99 (C-2); 134,71 (C-3); 179,48 (C-4); 162,0 (C-5); 99,92 (C-6); 164,96 (C-7); 95,16 (C-8); 159,31 (C-9); 105,55 (C-10); 122,80 (C-il); 116,65 (C-12); 145,59 (C-13); 149,12 (C-14); 11707 (C-iS); 123,90 (C-16); die Obrigen Werte vergl. Tabelle I. Aus 460 mg Rohflavonoidgemisch konnten 45 mg 4 isoliert werden.Hydrolyse der Flavonoide Je 2mg 2, 3 bzw. 4 sowie Hyperosid als V… Show more

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Cited by 19 publications
(11 citation statements)
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“…Following repeated chromatographic separation and purification, six ( 1 – 6 ) and eleven ( 7 – 17 ) major steroid alkaloids were isolated from the leaves and stem bark respectively, in addition to one nitrogen-free steroid ( 18 ) and a non-steroid alkaloid-like compound ( 19) from the leaves ( Figure 1 ). The compounds were identified as 3β-holaphyllamine ( 1 ), holaphyllamine acetamide ( 2 ), 3β- N -methylholaphyllamine ( 3 ), 3α-holaphyllamine ( 4 ), 3β-dihydroholaphyllamine ( 5 ), 3α-dihydroholaphyllamine ( 6 ), holadienine ( 7 ), holonamine (8), cona-4,6-dienin-3-one ( 9 ), cona-3,5-dienin-7-one ( 10 ), conessimine ( 11 ), isoconessimine ( 12 ), conessine ( 13 ), holarrhesine ( 14 ), holarrhetine ( 15 ), holarrheline ( 16 ), holarrhenine ( 17 ), kurchinin ( 18 ) and N 3 -isopentenyl adenine ( 19 ) by comparison of their 1D and 2D NMR data and their exact masses from UHPLC/+ESI QTOF MS/MS analysis, which were in agreement with previously reported data [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ].…”
Section: Resultssupporting
confidence: 91%
See 1 more Smart Citation
“…Following repeated chromatographic separation and purification, six ( 1 – 6 ) and eleven ( 7 – 17 ) major steroid alkaloids were isolated from the leaves and stem bark respectively, in addition to one nitrogen-free steroid ( 18 ) and a non-steroid alkaloid-like compound ( 19) from the leaves ( Figure 1 ). The compounds were identified as 3β-holaphyllamine ( 1 ), holaphyllamine acetamide ( 2 ), 3β- N -methylholaphyllamine ( 3 ), 3α-holaphyllamine ( 4 ), 3β-dihydroholaphyllamine ( 5 ), 3α-dihydroholaphyllamine ( 6 ), holadienine ( 7 ), holonamine (8), cona-4,6-dienin-3-one ( 9 ), cona-3,5-dienin-7-one ( 10 ), conessimine ( 11 ), isoconessimine ( 12 ), conessine ( 13 ), holarrhesine ( 14 ), holarrhetine ( 15 ), holarrheline ( 16 ), holarrhenine ( 17 ), kurchinin ( 18 ) and N 3 -isopentenyl adenine ( 19 ) by comparison of their 1D and 2D NMR data and their exact masses from UHPLC/+ESI QTOF MS/MS analysis, which were in agreement with previously reported data [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ].…”
Section: Resultssupporting
confidence: 91%
“…All the spectra data were in full agreement with reported literature data [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ].…”
Section: Methodssupporting
confidence: 89%
“…La recherche des groupes de composés chimiques chez les extraits bruts a été réalisée en tubes et sur Chromatographie sur Couche Mince (Wagner et al, 1987 ;Dohou et al, 2005).…”
Section: Recherche Des Groupes De Composés Chimiquesunclassified
“…Phosphomolybdic acid causes blue-black zones to appear against a yellow background (21). Antimony(III) or (V) chloride produces zones of different characteristic colors on a white background (23). Antimony(III) or (V) chloride produces zones of different characteristic colors on a white background (23).…”
Section: Postchromatographic Derivatizationmentioning
confidence: 99%