spirostanol/allium

Linkul este salvat în clipboard

ArticoleStudii cliniceBrevete

Alegeți tipul de sortare

Pagină 1 din 18 rezultate

Two new spirostanol saponins from Allium tuberosum.

Numai utilizatorii înregistrați pot traduce articole

Two new spirostanol saponins, tuberosides D and E, have been isolated from the seeds of Allium tuberosum. On the basis of spectral data and chemical reactions, their structures were established as (25S)-5alpha-spirostane-2alpha,3beta-diol

Spirostanol saponins of Allium porrum L.

Numai utilizatorii înregistrați pot traduce articole

An investigation of the extracts from bulbs of Allium porrum L. has led to the isolation of four spirostanol saponins. Two of them are new compounds and have been identified as: (25R)-5 alpha-spirostan-3 beta, 6 beta-diol 3-O-{O-beta-D-glucopyranosyl-(1-->2)-O-[beta-D-xylopyranosyl-(1-->3)]-O- beta

New spirostanol saponins from Chinese chives (Allium tuberosum).

Numai utilizatorii înregistrați pot traduce articole

Three new spirostanol saponins have been isolated from the seeds of Allium tuberosum. On the basis of acid hydrolysis and comprehensive spectroscopic analysis, their structures were established as tuberoside J, (25R)-5alpha-spirostan-2alpha,3beta,27-triol

Spirostanol steroids from the roots of Allium tuberosum.

Numai utilizatorii înregistrați pot traduce articole

Three new spirostanol saponins named tuberosines A-C (1-3), together with three known ones tuberoside O (4), 25(S)-Schidigera-saponin D5 (5), and shatavarin IV (6) were isolated from the roots of Allium tuberosum. Their structures were established on the basis of extensive spectroscopic analyses.

Tuberoside M, a new cytotoxic spirostanol saponin from the seeds of Allium tuberosum.

Numai utilizatorii înregistrați pot traduce articole

Tuberoside M (1), isolated from the seeds of Allium tuberosum, shows a significant inhibitory effect on the growth of the human promyelocytic leukemia cell line (HL-60) with IC50 value of 6.8 microg/ml. On the basis of spectral data and chemical reaction, its structure was established as

Cytotoxic steroidal saponins from the flowers of Allium leucanthum.

Numai utilizatorii înregistrați pot traduce articole

Allium leucanthum C. Koch is an endemic Caucasian species that grows in Georgia. The flowers are used in traditional medicine. Phytochemical investigation allowed the isolation of seven spirostanol type saponins from the flowers. Their structures were elucidated on the base of NMR and HRESIMS

In vitro antifungal and antileishmanial activities of steroidal saponins from Allium leucanthum C. Koch -- a Caucasian endemic species.

Numai utilizatorii înregistrați pot traduce articole

Five steroidal saponins were isolated for the first time in the flower of Allium leucanthum C.Koch. In vitro antifungal and antileishmanial activities of pure compounds as well as crude extract, spirostanoid and furostanoid fractions were evaluated. Spirostanol saponins (25R),5alpha- spirostan

Steroidal saponins from the bulbs of Allium karataviense.

Numai utilizatorii înregistrați pot traduce articole

Chemical examination of the bulbs of Allium karataviense led to the isolation of five new spirostanol saponins (7-11) and a new furostanol saponin (12), together with a known steroidal sapogenin (1) and five known saponins (2-6). The structures of the new saponins were determined by detailed

Saponins of Allium elburzense.

Numai utilizatorii înregistrați pot traduce articole

A phytochemical investigation of the bulbs of Allium elburzense has been undertaken, leading to the isolation of 13 furostanol and spirostanol saponins, eight of which are new, namely, elburzensosides A1/A2 (1a/1b), B1/B2 (2a/2b), C1/C2 (3a/3b), and D1/D2 (4a/4b). On the basis of spectroscopic

Structure-activity relationships for saponins from Allium hirtifolium and Allium elburzense and their antispasmodic activity.

Numai utilizatorii înregistrați pot traduce articole

A phytochemical study of Allium hirtifolium Boiss flowers has led to the isolation of high amounts of six new furostanol and spirostanol saponins, named hirtifoliosides A1/A2 (1a/ 1b), B (2), C1/C2 ( 3a/ 3b), and D(4) along with three known spirostanol saponins, alliogenin 3-

Steroidal glycosides from the bulbs of Allium jesdianum.

Numai utilizatorii înregistrați pot traduce articole

Phytochemical analysis of the fresh bulbs of Allium jesdianum yielded four steroidal glycosides, (22S)-cholest-5-ene-1beta,3beta, 16beta,22-tetrol 1,16-di-O-beta-D-glucopyranoside (1), (22S)-cholest-5-ene-1beta,3beta,16beta,22-tetrol 1-O-alpha-L-rhamnopyranosyl 16-O-beta-D-glucopyranoside (2),

Steroidal glycosides from the underground parts of Allium ursinum L. and their cytostatic and antimicrobial activity.

Numai utilizatorii înregistrați pot traduce articole

The aim of this study was the isolation and structural elucidation of steroidal glycosides from the underground parts of ramson Allium ursinum L. The structures of the isolated compounds were established based upon chromatographic methods and 1D- and 2D-NMR, MS and IR analyses. The mixture of two

Ultraviolet derivatization of steroidal saponin in garlic and commercial garlic products as p-nitrobenzoate for liquid chromatographic determination.

Numai utilizatorii înregistrați pot traduce articole

A method is described for determination of the steroidal saponin, eruboside B, originating in garlic and garlic products as the p-nitrobenzoyl chloride (PNBC) derivative by reversed-phase liquid chromatography (with ultraviolet detection at 260 nm. Proto-eruboside B was extracted from garlic (Allium

New steroidal saponins from the bulbs of Allium giganteum exhibiting potent inhibition of cAMP phosphodiesterase activity.

Numai utilizatorii înregistrați pot traduce articole

A new spirostanol saponin and two new furostanol saponins were isolated from the fresh bulbs of Allium giganteum together with several known saponins. The structures of the new compounds were determined on the basis of spectroscopic data, the products formed on hydrolysis and by comparing their

Steroidal glycosides from Allium macleanii and A. senescens, and their inhibitory activity on tumour promoter-induced phospholipid metabolism of HeLa cells.

Numai utilizatorii înregistrați pot traduce articole

A new polyhydroxylated cholestane trisdesmoside and a new spirostanol pentasaccharide, together with five known spirostanol saponins, were isolated from the bulbs of Allium macleanii, and two known spirostanol saponins were isolated from the bulbs of A. senescens. The identification and structural

Anterior
1
2
Următor →

Alăturați-vă paginii
noastre de facebook

Herbal & Natural Medicine

Cea mai completă bază de date cu plante medicinale susținută de știință

Funcționează în 55 de limbi
Cure pe bază de plante susținute de știință
Recunoașterea ierburilor după imagine
Harta GPS interactivă - etichetați ierburile în locație (în curând)
Citiți publicațiile științifice legate de căutarea dvs.
Căutați plante medicinale după efectele lor
Organizați-vă interesele și rămâneți la curent cu noutățile de cercetare, studiile clinice și brevetele

Tastați un simptom sau o boală și citiți despre plante care ar putea ajuta, tastați o plantă și vedeți boli și simptome împotriva cărora este folosit.
* Toate informațiile se bazează pe cercetări științifice publicate