Results 211 to 220 of about 5,587 (239)

ChemInform Abstract: PARTIAL SYNTHESES OF CARDENOLIDES AND CARDENOLIDE ANALOGS. II. SYNTHESIS OF CARDENOLIDE‐ANALOGOUS Γ‐STEROIDYL BUTENOLIDES

Chemischer Informationsdienst, 1981
AbstractDie Ausgangsverbindung zur Synthese der Cardenolid‐Analogen (III) und (IV) bzw. (VI) ist das in hoher Ausb. nach bekannter Methode erhaltene β‐Ketosulfoxid (I).
F. THEIL, C. LINDIG, K. REPKE
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Glycosylation in cardenolide biosynthesis

Plant Cell, Tissue and Organ Culture, 1994
The glycosylation and deglycosylation of cardiac glycosides was investigated using cell suspension cultures and shoot cultures, both established from Digitalis lanata EHRH. plants, as well as isolated enzymes. Shoots were capable of glucosylating digitoxigenin, evatromonoside, digiproside, glucodigitoxigenin and digitoxin. Suspension cultured Digitalis
Christoph Theurer, Hans-Joachim Treumann, Thomas Faust, Ursula May, Wolfgang Kreis   +4 more
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Alepposides, Cardenolide Oligoglycosides from Adonis aleppica

Journal of Natural Products, 1993
The structures of novel oligoglycosidic cardenolides, alepposide A (C55H86O23) [1] and alepposide B (C48H74O20) [2], have been deduced mainly by nmr methods. Based on homonuclear (1H and 13C nmr, 1H COSY) and proton-detected heteronuclear shift correlation experiments [HMQC both for 1J(C,H) and for long-range couplings], alepposide A [1] was shown to ...
G F, Pauli, P, Junior, S, Berger, U, Matthiesen   +3 more
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Cardenolides ofSecurigera securidaca. II.

Chemistry of Natural Compounds, 1965
The seeds ofSecurigera securidaca have been found to contain a cardiac glycoside securidaside, which is securigenin xyloglucoside. By stepwise enzymatic hydrolysis, securidaside can be decomposed into the monoxyloside securiside or into the aglycone and the sugar component.
V. V. Zamula, N. P. Maksyutina, D. G. Kolesnikov   +2 more
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Saponins and Cardenolides

1998
Saponins are compounds that possess a polycyclic aglycone moiety with either a steroid (typically C27) or triterpenoid (C30) structure attached to a carbohydrate unit (a monosac-charide or oligosaccharide chain) (Fig. 24.1). These sugar units are composed variously of pentoses, hexoses, or uronic acids.
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Alkaloid cardenolides

Chemistry of Natural Compounds, 1985
I. F. Makarovich, L. V. Ivanov, Ya. I. Khadzhai, V. F. Belokon', V. V. Pavlova, O. I. Klimenko, N. Ya. Bondar, E. V. Uryupina   +7 more
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bis-Cardenolides

Chemistry of Natural Compounds, 2010
Yu. I. Gubin, I. F. Makarevich
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Cardenolide alkylideneglycosides

Chemistry of Natural Compounds, 2007
S. V. Kovalev, I. F. Makarevich
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Synthetic Cardenolides

1967
W W, Zorbach, K V, Bhat
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Cardenolides from Ornithogalum boucheanum.

Planta medica, 2013
From leaves and bulbs of ORNITHOGALUM BOUCHEANUM (Kunth) Aschers. et Graebn. (Liliaceae), cardenolides were isolated by a combination of column and droplet counter-current chromatography. Their structure elucidation was performed mainly by means of (1)H-NMR, (13)C-NMR, EI-MS, and LD-MS studies as well as by acid and/or enzymatic hydrolysis of the ...
U, Ghannamy, B, Kopp, W, Robien, W, Kubelka   +3 more
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