Showing papers on "Glucoside published in 1983"
TL;DR: From the dried stems of Tinospora tuberculata BEUMEE (Menispermaceae), N-transferuloyl tyramine (1), n-cis-feruloyyl tyramerine (2), and a new phenolic glucoside, tinotuberide (6), were isolated as discussed by the authors.
Abstract: From the dried stems of Tinospora tuberculata BEUMEE (Menispermaceae), N-transferuloyl tyramine (1), N-cis-feruloyl tyramine (2), and a new phenolic glucoside, tinotuberide (6), were isolated The structure of 6 was elucidated as 3-(4'-β-D-glucopyranosyloxy-3', 5'-dimethoxyphenylmethoxy)-2-trans-propen-1-ol
91 citations
TL;DR: In this article, tannin-related compounds (I-VI) have been isolated from commercial rhubarb, and their structures have been established on the basis of chemical and spectroscopic data to be 1-O-galloylglycerol (I), gallic acid 3-Oβ-D-(6'-O-glucopyranoside (II), 1, 6-di-O-, β-D-D)-glucose (III), 6-o-galloylelglucoside (IV), 4-(4
Abstract: Six tannin-related compounds (I-VI) have been isolated from commercial rhubarb, and their structures have been established on the basis of chemical and spectroscopic data to be 1-O-galloylglycerol (I), gallic acid 3-O-β-D-(6'-O-galloyl)-glucopyranoside (II), gallic acid 4-O-β-D-(6'-O-galloyl)-glucopyranoside (III), 1, 6-di-O-galloyl-β-D-glucose (IV), 6-O-galloylglucose (V) and 4-(4'-hydroxyphenyl)-2-butanone 4'-O-β-D-(2"-O-galloyl)-glucopyranoside (VI, named isolindleyin).
80 citations
TL;DR: In this paper, carbon radicals derived from tetra-acetylglucosyl and β-alanyl derivatives to acrylic acid or esters were added to obtain a short route to a C-glucose and a functionalised α-amino acid, respectively.
Abstract: Addition of carbon radicals derived from tetra-acetylglucosyl and β-alanyl derivatives to acrylic acid or esters provides a short route to a C-glucoside and a functionalised α-amino-acid, respectively.
70 citations
TL;DR: Dodecyl glucoside appears to increase the membrane fluidity, evaluated through changes in the Hill coefficient for plasma-membrane (Na+ + K-stimulated ATPase) and 5'-nucleotidase activities.
Abstract: A marked increase in the activities of rat liver plasma-membrane (Na+ + K+)-stimulated ATPase and microsomal Ca2+-stimulated ATPase was observed 18h after partial hepatectomy. Lipid analyses for both membrane preparations reveal that in partially hepatectomized rats the cholesterol and sphingomyelin content are decreased with a subsequent decrease in the cholesterol/phospholipid molar ratio compared with those of sham-operated animals. Changes in the allosteric properties of plasma-membrane (Na+ + K+)-stimulated ATPase by F- (as reflected by changes in the Hill coefficient) indicated a fluidization of the lipid bilayer of both membrane preparations in 18 h-regenerating liver. The amphipathic dodecyl glucoside incorporated into the hepatic plasma membranes evoked a marked increase in the (Na+ + K+)-stimulated ATPase and 5'-nucleotidase activities. The lack of effect of the glucoside on the Lubrol-PX-solubilized 5'-nucleotidase indicates that changes in the activities of the membrane-bound enzymes caused by the glucoside are due to modulation of the membrane fluidity. Dodecyl glucoside appears to increase the membrane fluidity, evaluated through changes in the Hill coefficient for plasma-membrane (Na+ + K+)-stimulated ATPase. The biological significance of these data is discussed in terms of the differences and changes in the interaction of membrane-bound enzymes with membrane lipids during liver regeneration.
32 citations
TL;DR: In this paper, a new sweet glycoside named baiyunoside (1) was isolated from a Chinese plant drug, Bai-Yun-Shen (roots of Salvia digitaloides), and the structure of 1 was determined to be β-D-xylopyranosyl (1→2)-β-Dglucopyranoide of 2 by MS and NMR spectroscopy.
Abstract: From a Chinese plant drug, Bai-Yun-Shen (roots of Salvia digitaloides), a new sweet glycoside named baiyunoside (1) was isolated. The structure of the acid-unstable aglycone of 1 named baiyunol (2) was elucidated by MS and NMR spectroscopy especially by comparison with the 13C chemical shifts of β-onocerin (3). The structure of 1 was determined to be β-D-xylopyranosyl (1→2)-β-D-glucopyranoside of 2 by MS and NMR spectroscopy. Besides this sweet principle (1), several bitter iridoid glucosides were also isolated from this plant. Two of these glucosides were identified as shanzhiside methyl ester (13) and its 8-O-acetate (=acetylbarlerin, 10), respectively. A new glucoside (9) was formulated as 6-O-syringyl-8-O-acetyl shanzhiside methyl ester by the correlation with 13.
30 citations
TL;DR: The stem bark of Nauclea diderrichii has yielded diderroside, a new secoiridoid glucoside, as well as quinovic acid, 3-oxoquinovic acid and 3- O -glucosylquinovic acids.
29 citations
TL;DR: In this paper, a new iridoid glucoside which was characterized as 6′-p-hydroxybenzoylmussaenosidic acid was identified.
27 citations
Patent•
16 May 1983
TL;DR: In this paper, a di(C 12 -C 22 unsaturated higher fatty acid) ester of a polyethoxylated glucoside of the formula ##STR1## was found to be an excellent thickener for alpha-olefin sulfonate surfactants.
Abstract: A di(C 12 -C 22 unsaturated higher fatty acid) ester of a polyethoxylated glucoside of the formula ##STR1## wherein R is a hydrogen atom or (C 1 -C 4 ) alkyl, n is a number of from 12 to 22, m is a number of from 12 to 22, and x and y are positive numbers such that 110≦x+y≦150. was found to be an excellent thickener for alpha-olefin sulfonate surfactants.
27 citations
TL;DR: In this paper, the effect of light on the formation of tetrahydroanthracene and anthraquinone glucosides is discussed, and the effects of light exposure on the development of these compounds are discussed.
26 citations
TL;DR: Arbutin and a new phenolic glucoside were isolated from the fresh leaves of Viburnum phlebotrichum and the structure of the new compound was established as 1-O -(4-hydroxyphenyl)-6- O -[(2 E, 6 S )-2,6-dimethyl-6-hydroxy-2.7-octadienoyl]-β-D -glucopyranoside as discussed by the authors.
25 citations
TL;DR: Mollugoside, a new iridoid glucoside isolated from Galium mollugo, has been characterized as the 8α-hydroxyapodanthoside by simple chemical transformations and comparison of 13 C NMR spectra of mollUGoside and monotropein with those of corresponding carboxilate anions.
TL;DR: In this paper, the structures of two acylated apigenin glucosides were reported from the aerial parts of Anisomeles ovata and they were separated as their acetates and identified as APigenin 7-O -β-d -(2″,6″-di- O -p -coumaroyl)glucoside and apigenIN 7- O −β- d -(4″, 6′-di −O -p −coumoyl)-glucose by chemical degradative methods
TL;DR: In this article, four new bitter iridoid glucosides, including three bis-iridoids, were isolated from Viburnum urceolatum and their structures elucidated, composed of loganin or deoxyloganin as the aglucone esterified with either aromatic glucoside or with glucose in the 4 position.
TL;DR: Chromatographic separation of the butanol-soluble part of the methanol extract of Typha latifolia leaves resulted in the isolation of a new flavonoid, 3,3′-di-O -methylquercetin 4′- O -glucoside.
TL;DR: In this paper, the fate of 1-naphthyl-β-d-glucuronide, 1-Naphthol, and 1- naphthymyl glucoside was studied in male mice.
TL;DR: The radioactivity of riboflavinyl glucoside comprised about 6% of the total radioactivity excreted in the urine during 24h after administration was fractionated by paper and silica gel thin layer chromatographies using various solvent systems.
Abstract: To investigate the metabolism of riboflavin, [2-14 C]-riboflavin was administered orally to a rat. The urine pooled for 24h after administration was fractionated by paper and silica gel thin layer chromatographies using various solvent systems. Among the radioactive metabolites, riboflavinyl glucoside was found along with 7-carboxy lumichrome and 8-carboxy lumichrome. The radioactivity of riboflavinyl glucoside comprised about 6% of the total radioactivity excreted in the urine during 24h.
TL;DR: The conversion of this compound into penta- acetyllamiol proved the above assignment and the structure and configuration of 6β-hydroxyipolamiide was assigned on the basis of 1 H and 13 C NMR evidence.
TL;DR: In addition to sitosterol glucoside and gallic acid, two new flavone glycosides have been isolated from Eugenia kurzii (aerial parts) and characterized as 3-C -methylapigenin 5- O -rhamnoside and 3- C -methylluteolin 5-O -RHAMnoside by spectral analysis and chemical conversion as discussed by the authors.
TL;DR: The hypothesis that 20-hydroxyecdysone regulates the build up of free tyrosine by inducing or activating tyrosinesine glucoside hydroxylase in the fat body is supported.
TL;DR: From the whole plants of Swertia japonica Makino a mixture of two new bitter biphenyl glucoside biphenosides A and B, was isolated along with three known secoiridoid glucosides by the application of droplet countercurrent chromatography (DCCC).
Abstract: From the whole plants of SWERTIA JAPONICA M AKINO a mixture of two new bitter biphenyl glucosides biphenosides A and B, was isolated along with three known secoiridoid glucosides by the application of droplet countercurrent chromatography (DCCC). The structure of the biphenyl glucoside was established by chemical degradation and spectroscopic methods.
TL;DR: From the fronds of the fern Ceterach officinarum naringin and a new flavanone, naringenin 7-[ O - L -arabinopyranosyl-(1 → 6) glucoside], have been characterized as discussed by the authors.
TL;DR: Acyltransferase preparations from wheat roots, carrot roots and broad bean leaves obtained by the same method and assayed under identical incubation conditions show similar specificity patterns with respect to various acyl donors.
TL;DR: None of the nine species of insect used was able to metabolize [14C]benzoic acid to a glucoside-phosphate or glucosid-sulphate conjugate.
Abstract: 1. Conjugates of p-nitrophenol in nine species of insects were identified by paper chromatography and ionophoresis as the glucoside, the sulphate, the phosphate and the glucoside phosphate.2. Metabolites with similar properties to the glucoside phosphates were also formed from 8-hydroxyquinoline, 1-naphthol and 4-methylumbelliferone in Tenebrio larvae.3. Tenebrio larvae also metabolized p-nitrophenol to a compound believed to be p-nitrophenyl glucoside-6-sulphate.4. None of the nine species of insect used was able to metabolize [14C]benzoic acid to a glucoside-phosphate or glucoside-sulphate conjugate.
TL;DR: In this article, two new growth inhibitors, R-dihydromaleimide β-d -glucoside, were isolated from 2-week-old pea shoots.
TL;DR: A new glycoside, tamarixetin 3-rhamnoside together with kaempferol, mearnsetin, quercetin, myricetin and sitosterol glucoside, was identified from the leaves of Flemingia stricta as mentioned in this paper.
TL;DR: In this paper, the synthesis of β-D-glucopyranosides of some Hydroxylated Vitamin-D Compounds has been studied in the context of glucosylation of vitamin D derivatives.
Abstract: Synthesis of β-D-Glucopyranosides of some Hydroxylated Vitamin-D Compounds
Cholesta-5, 7-diene-1α, 3β-diol (1a) was glycosylated with ‘α-acetobromoglucose’ (2) as well as with ‘α-acetobromocellobiose’ (4) to yield the 3-(glycosides) 1b and 1c, respectively Irradiation of these products with UV light followed by thermal isomerization led to the corresponding vitamin-D derivatives 3a and 3c Direct glucosylation of vitamin D3(3f) and vitamin D2(5a) with 2 gave the derivatives 3g and 5b, respectively With 25-hydroxycholecalciferol ( = calcidiol; 6a) as substrate, besides the 3-(glucoside) 6b small amounts of the C(25)-analog 6c were formed The reaction of 1α, 25-dihydroxycholecalciferol ( = calcitriol; 6e) with 2 furnished the 3- and the 1-(glucoside) (6f and 6g, respectively) as the major components and the C(25)-analog 6h in minor quantity From the acetylated 3-(glucosides) 3a, 3g, 5b, 6b, and 6f, the free glucopyranosides 3b, 3h, 5c, 6d, and 6i, respectively, were prepared as well as the free glucopy-ranosyl-glucopyranoside 3d from the acetylated disaccharide 3c
Patent•
07 Mar 1983
TL;DR: In this paper, a method of manufacturing the liposomes, one or more steryl glycoside and steryl glucoside monopalmitate is/are dissolved in a solution of lipid and, if necessary, sterol and a charging agent in chloroform, then chloroforming is evaporated therefrom to form lipid membrane on the wall of the container, and then stirred or subjected to ultrasonic wave irradiation after addition of a medium.
Abstract: Liposomes contain one or more of steryl glycoside and steryl glucoside monopalmitate as effective ingredient(s). In a method of manufacturing the liposomes, one or more steryl glucosides and steryl glucoside monopalmitate is/are dissolved in a solution of lipid and, if necessary, sterol and a charging agent in chloroform, then chloroform is evaporated therefrom to form lipid membrane on the wall of the container, and then stirred or subjected to ultrasonic wave irradiation after addition of a medium. The steryl glucosides and steryl glucoside palmitates are derived e.g. from cholesterol sitosterol, campesterol and stigmasterol.
01 Jan 1983
TL;DR: In ruminants, complete hydrolysis of the glucoside occurs in the rumen before the liberated exocons undergo further metabolism, reconjugation, and elimination, while in the monogastric animal, bound residues pass through the gastrointestinal tract of the rat unchanged.
Abstract: Plant metabolites of pesticides may be classified into three broad groups: free compounds, conjugates, and bound residues. The most characteristic of all plant conjugates are glucose derivatives known as glucosides. In the monogastric animal, glucosides are readily absorbed and partially hydrolyzed to the free exocons which may undergo further metabolism before being reconjugated and eliminated as typical mammalian sulfate or glucuronide conjugates. The glucoside does not undergo direct oxidation to the corresponding glucuronide. In ruminants, complete hydrolysis of the glucoside occurs in the rumen before the liberated exocons undergo further metabolism, reconjugation, and elimination. Unlike glucosides, bound residues pass through the gastrointestinal tract of the rat unchanged. The fate of bound residues in the ruminant is less clear and may depend on the type of material to which the residue is bound.