نتایج جستجو برای: glycosides

تعداد نتایج: 9088  

Journal: :Postgraduate medical journal 1988
P B Weedle J W Poston P A Parish

Data relating to the use of digoxin from a descriptive epidemiological study of drug use in residential homes for elderly people were analysed. Of the 1,888 residents in the study homes, 212 were receiving cardiac glycosides. The ratio of females to males who received cardiac glycosides was 2.8:1; however, this was not statistically significant as it reflected the overall population. The median...

Journal: :The British journal of ophthalmology 1966
D M Warner S M Drance

PREVious investigation by Simon, Bonting, and Hawkins (1962) indicated that intravenous cardiac glycosides caused a significant fall in the rate of aqueous humour formation in the cat eye. Langham (1963), using rabbits and cats, and Becker (1963), using rabbits, were not able to demonstrate this effect. Becker, using an intravitreal injection of cardiac glycosides, was able to demonstrate a fal...

2017
Jihen Ati Pierre Lafite Richard Daniellou

Carbohydrate related enzymes, like glycosyltransferases and glycoside hydrolases, are nowadays more easily accessible and are thought to represent powerful and greener alternatives to conventional chemical glycosylation procedures. The knowledge of their corresponding mechanisms has already allowed the development of efficient biocatalysed syntheses of complex O-glycosides. These enzymes can al...

Journal: :Organic & biomolecular chemistry 2009
Katsuhiko Suzuki Akifumi Tobe Shin Adachi Shusaku Daikoku Yasuko Hasegawa Yuki Shioiri Mariko Kobayashi Osamu Kanie

The potential applications of N-hexyl-4-aminobutyl glycosides in the mass spectrometric investigation of glycan structure and in the investigation of glycan functions were studied. Under collision-induced dissociation (CID) conditions, sodiated glycosides carrying N-hexyl-4-aminobutyl groups effectively produced a hemiacetal species (C-ions), which is important in mass-spectrometry-based struct...

Journal: :Chemical & pharmaceutical bulletin 2011
Katsuyoshi Matsunami Hideaki Otsuka Yoshio Takeda

Chemical investigation of the 1-BuOH soluble fraction of the dried fruits of Myrsine seguinii (Myrsinaceae) led to the isolation of five new glycosides, named myrseguinosides A-E (1-5), together with eight known compounds (6-13). The absolute structures of the new glycosides were elucidated by spectroscopic and chemical analyses to be a monoterpene glucoside (1), two flavonol glycosides (2, 3),...

Journal: :Molecules 2012
Indra Prakash Mary Campbell Rafael Ignacio San Miguel Venkata Sai Prakash Chaturvedula

Catalytic hydrogenation of the three ent-kaurane diterpene glycosides isolated from Stevia rebaudiana, namely rubusoside, stevioside, and rebaudioside-A has been carried out using Pd(OH)₂ and their corresponding dihydro derivatives have been isolated as the products. Synthesis of reduced steviol glycosides was performed using straightforward chemistry and their structures were characterized on ...

2014
Shijun Yue Yuping Tang Chengmei Xu Shujiao Li Yue Zhu Jin-Ao Duan

Two new quinochalcone C-glycosides, named hydroxysafflor yellow B (1) and hydroxysafflor yellow C (2), along with two known quinochalcone C-glycosides, safflomin C (3) and saffloquinoside C (4), and one known flavanone, (2R)-4',5-dihydroxyl-6, 7-di-O-β-d-glucopyranosyl flavanone (5), were isolated from the florets of Carthamus tinctorius. Their structures were determined by extensive spectrosco...

2017
Xiaoli Ma Xiaoyu Guo Mingbo Zhao Pengfei Tu Yong Jiang

Four new phenolic glycosides, including two flavonoid glycosides (1 and 2) and two lignan glycosides (3 and 4), were isolated from the traditional Chinese medicine formula, Baoyuan decoction. Their structures were established by detailed analysis of the NMR and HR-ESI-MS spectroscopic data and their absolute configurations were determined by the experimental electronic circular dichroism data a...

Journal: :Plant physiology 1972
P B Bush C Grunwald

The identity, composition, and concentration of the total, free, esterified, and glycosidic sterol fractions were determined during germination of tobacco seeds. The total, free, and esterified sterols increased, with stigmasterol and campesterol accounting for most of the increase. Steryl glycosides decreased during germination, and stigmasteryl and sitosteryl glycosides showed the largest dec...

2013
Bhola Kadam

General phytochemical screening of the leaves of Saurauia roxburghii (Actinidiaceae) revealed the presence of alkaloids, flavonoids, glycosides, O-glycosides, terpenoids, carbohydrates, steroids, reducing sugar, tannins, phlobatannins and saponin are present in this plant whereas cardiac glycosides are absent. Two steroid compounds were isolated from the n-hexane extract of the leaves from S. r...

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