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Search for new steroidal glycosides with anti-cancer potential from natural resources. [PDF]

J Nat Med
Matsuo Y, Mimaki Y.
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Aldimines of Cardenolides and Cardenolide-Glycosides

Chemistry of Natural Compounds, 2005
New aldimines were synthesized from the cardenolide strophantidin and cardenolide-glycosides erysimin and cymarin and included morpholine, nitrile, pyridine, furan, hydroxy- and methoxyphenyl, piperidine, and other derivatives. An effective modified method for synthesizing aldimines was proposed. 52 new compounds were synthesized. Their structures were
I. F. Makarevich, Yu. I. Gubin, R. Megges   +2 more
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Cytotoxicity of cardenolides and cardenolide glycosides from Asclepias curassavica

Bioorganic & Medicinal Chemistry Letters, 2009
A new cardenolide, 12beta,14beta-dihydroxy-3beta,19-epoxy-3alpha-methoxy-5alpha-card-20(22)-enolide (6), and a new doubly linked cardenolide glycoside, 12beta-hydroxycalotropin (13), together with eleven known compounds, coroglaucigenin (1), 12beta-hydroxycoroglaucigenin (2), calotropagenin (3), desglucouzarin (4), 6'-O-feruloyl-desglucouzarin (5 ...
Jun-Zhu, Li, Chen, Qing, Chang-Xiang, Chen, Xiao-Jiang, Hao, Hai-Yang, Liu   +4 more
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Cardenolides from Erysimum cheiranthoides

Phytochemistry, 1996
Three new cardiac glycosides were isolated along with two known cardenolides from the seeds of Erysimum cheiranthoides. The new ones were characterized by spectral methods as 16 beta-hydroxystrophanthidin (strophadogenin) 3-O-beta-glucopyranosyl-(1-->4)-beta-boiviopyranoside, strophadogenin 3-O-alpha-rhamnopyranosyl-(1-->4)-beta-digitoxopyranoside and ...
Z H, Lei, S, Yahara, T, Nohara, T B, Shan, J Z, Xiong   +4 more
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Cardenolides from Adonis aestivalis

Phytochemistry, 1992
Four cardenolides were isolated for the first time from the aerial parts of Adonis aestivalis. The compounds were identified by spectrometry and for 3-epi-periplogenin, helveticoside also by comparison with authentic substances. Two new cardenolides were structurally elucidated: strophanthidin-3-O-beta-D-digitoxosido-alpha-L-cymarosido-be ta-D ...
B, Kopp, L, Krenn, E, Kubelka, W, Kubelka   +3 more
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Cardenolides from Nierembergia aristata

Journal of Natural Products, 1995
The EtOAc extract of the whole plant of the Argentinian species Nierembergia aristata showed significant cytotoxicity against eleven different cancer cell lines. In addition to several known compounds, bioassay-guided fractionation led to the isolation of three new cardenolides, 17-epi-11 alpha-hydroxy-6, 7-dehydrostrophanthidin-3-O-beta ...
R R, Gil, L Z, Lin, H B, Chai, J M, Pezzuto, G A, Cordell   +4 more
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Synthesis of cardenolide glycosides and putative biosynthetic precursors of cardenolide glycosides

Steroids, 1998
A rapid and efficient procedure for glycosylation of steroids was established using a modified Koenigs-Knorr procedure. Peracetylated beta-glycosides were synthesized by reaction of cardenolides, various pregnanes and 23-nor-5,20(22)E-choldienic acid at room temperature with the peracetylated 1-bromo derivatives of D-glucose, D-galactose, D-fucose and ...
M, Luta, A, Hensel, W, Kreis
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Cytotoxic cardenolides from Calotropis gigantea

Phytochemistry, 2021
Sixteen cardiac glycosides, including five previously undescribed compounds, were extracted and purified from whole plants of Calotropis gigantea (L.). Spectroscopic data and electronic circular dichroism (ECD) analyses were used to determine their structures.
Yi-Lin, He, Hong-Ying, Yang, Pei-Zhi, Huang, Wei-Jiao, Feng, Kun, Gao   +4 more
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ChemInform Abstract: PARTIAL SYNTHESES OF CARDENOLIDES AND CARDENOLIDE ANALOGS. VIII. LACTONE RING‐ALKYLATED CARDENOLIDES

Chemischer Informationsdienst, 1984
AbstractBehandeln der Cardenolide (I) mit NaH in DMF, anschließen de Zugabe der Alkylhalogenide (II) binnen fünf Minuten und Ansäuern der Ansätze liefern die Monoalkylderivate (III) als Hauptprodukte, daneben die Dialkylderivate (IV).
B. STRECKENBACH, P. FRANKE, R. HINTSCHE, H. J. PORTIUS, K. R. H. REPKE   +4 more
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