Results 161 to 170 of about 2,328 (194)

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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Xanthones from the stems of Securidaca inappendiculata

Phytochemistry, 2001
From the stems of Securidaca inappendiculata, securixanthones A (1,3,7-trihydroxy-2,8-dimethoxyxanthone) and B (3,7-dimethoxy-4-hydroxyxanthone) along with ten known xanthones were isolated. Their structures were elucidated by analysis chemical and spectroscopic evidence, and the chemotaxonomic significance of these findings are also discussed.
X D, Yang, L Z, Xu, S L, Yang
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Flavonol glycosides from Securidaca diversifolia

Phytochemistry, 1985
Abstract Twelve flavonol glycosides have been isolated from the leaves of Securidaca diversifolia . The separation of ten quercetin 3-glycosides and two kaempferol 3-glycosides was achieved by droplet counter-current chromatography (DCCC), preparative reversed-phase chromatography and gel chromatography.
M. Hamburger, M. Gupta, K. Hostettmann
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Securidaca L.

2023
Fil: dos Anjos Cassiane, Barroso. Universidade Federal Da Santa Catarina.
Martinez, Agustina, dos Anjos Cassiane, Barroso   +1 more
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A new sterol glycoside fromSecuridaca inappendiculata

Journal of Asian Natural Products Research, 2005
From the roots of Securidaca inappendiculata, one new sterol glycoside securisteroside (1) has been isolated, along with two known sterols, spinasterol (2) and 3-O-beta-D-glucopyranosyl-spinasterol (3). The new sterol was characterized by chemical and spectrometric methods, including EIMS, FABMS and one- and two-dimensional NMR experiments.
Li-Jie, Zhang, Xue-Dong, Yang, Li-Zhen, Xu, Zhong-Mei, Zou, Shi-Lin, Yang   +4 more
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Chemical constituents from the stems of Securidaca inappendiculata Hassk

Fitoterapia, 2019
Three new neolignan glycosides, (7R,8S)-4-hydroxy-3,3'-dimethoxy-8,4'-oxyneoligna-7,9,9'-triol-4-O-β-d-glucopyranosyl-(1 → 4)-β-D-glucopyranoside (1), (7R,8S)-4-hydroxy-3,5'-dimethoxy-4',7-epoxy-8,3'-neoligna-9,9'-diol-9'-O-β-d-glucopyranosyl-4-O-[β-d-glucopyranosyl-(1 → 4)]-β-D-glucopyranoside (2), and (7R,8S)-4-hydroxy-3,5,5'-trimethoxy-4',7-epoxy-8 ...
Junyang, Ji, Qiwen, Wang, Maolin, Wang, Jianwei, Chen, Xiang, Li   +4 more
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Potent cytotoxic flavonoids from Iranian Securigera securidaca

Medicinal Chemistry Research, 2013
The seeds of Securigera securidaca (Fabaceae) were used for treatment of diabetes in folk medicine of Iran. In this study the cytotoxicity of different fractions of seeds extract led to purification of potent cytotoxic flavonoids. In the examination of cytotoxicity with brine shrimp lethality test method petroleum ether and chloroform fractions and ...
Zahra Tofighi, Parina Asgharian, Saied Goodarzi, Abbas Hadjiakhoondi, Seyed Nasser Ostad, Narguess Yassa   +5 more
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Securidacaxanthone A, a heptaoxygenated xanthone from Securidaca longepedunculata

Fitoterapia, 2006
From the root bark of Securidaca longepedunculata, a heptaoxygenated xanthone (1) has been isolated as well as two known xanthones (2) and (3) and two salicylic acid derivatives (4) and (5). The structure of 1 has been elucidated from 1H and 13C-NMR spectral data.
A, Meli Lannang, D, Lontsi, F N, Ngounou, B L, Sondengam, A E, Nkengfack, F R, van Heerden, J C N, Assob   +6 more
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Xanthones from Securidaca inappendiculata and Securidaca longepedunculata: Chemistry and Biological Activity

The Natural Products Journal
Abstract: The genus Securidaca (Polygalaceae) comprises 49 taxonomically accepted species distributed in Asia and Africa. The roots, barks, and leaves of Securidaca species are famous for medicinal purposes, especially in Africa and Asia. In this paper, we review the xanthones isolated from S. inappendiculata and S.
Gomotsang Bojase, Japheth O. Ombito
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Presenegenin Glycosides from Securidaca welwitschii

Helvetica Chimica Acta, 2010
AbstractThe five new presenegenin glycosides 1–5 were isolated from Securidaca welwitschii, together with one known sucrose diester. Compounds 1–4 were obtained as pairs of inseparable (E)/(Z)‐isomers of a 3,4‐dimethoxycinnamoyl derivative, i.e., 1/2 and 3/4. Their structures were elucidated mainly by 2D‐NMR techniques and mass spectrometry as 3‐O‐(β‐D‐
Gaoussou Timité, Anne‐Claire Mitaine‐Offer, Tomofumi Miyamoto, Chiaki Tanaka, Thomas Paululat, Clément Delaude, Marie‐Aleth Lacaille‐Dubois   +6 more
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