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Synthesis and Application of Glycopeptide and Glycoprotein Mimetics.

In soybeans, isoflavones are presentas glycosides (bound to a sugar molecule).

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H., His6 tag-assisted chemical protein synthesis.

Picmanova, Martina; Neilson, Elizabeth H.; Motawia, Mohammed S.; Olsen, Carl Erik; Agerbirk, Niels; Gray, Christopher J.; Flitsch, Sabine; Meier, Sebastian; Silvestro, Daniele; Jorgensen, Kirsten; Sanchez-Perez, Raquel; Moller, Birger Lindberg; Bjarnholt, Nanna. “A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species” BIOCHEMICAL JOURNAL. 469; 375 – 389. – AUG 1 2015

Living Radical Polymerization as a Tool for the Synthesis of Polymer-Protein/Peptide Bioconjugates.

R.; Lober, S.; Hubner, H.; Gmeiner, P., Click chemistry on solid phase: parallel synthesis of -benzyltriazole carboxamides as super-potent G-protein coupled receptor ligands.

BIOSYNTHESIS OF GLYCOSIDES - Epharmacognosy

When ingested as part of the diet, genistin is readilyconverted to its aglycone form, genistein.

Over 100 phytochemicals have been discovered in stevia since. It is rich in terpenes and flavonoids. The constituents responsible for stevia's sweetness were documented in 1931, when eight novel plant chemicals called glycosides were discovered and named. Of these eight glycosides, one called is considered the sweetest - and has been tested to be approximately 300 times sweeter than sugar. Stevioside, comprising 6-18% of the stevia leaf, is also the most prevalent glycoside in the leaf. Other sweet constituents include steviolbioside, rebausiosides A-E, and dulcoside A.

The main plant chemicals in stevia include: apigenin, austroinulin, avicularin, beta-sitosterol, caffeic acid, campesterol, caryophyllene, centaureidin, chlorogenic acid, chlorophyll, cosmosiin, cynaroside, daucosterol, diterpene glycosides, dulcosides A-B, foeniculin, formic acid, gibberellic acid, gibberellin, indole-3-acetonitrile, isoquercitrin, isosteviol, jhanol, kaempferol, kaurene, lupeol, luteolin, polystachoside, quercetin, quercitrin, rebaudioside A-F, scopoletin, sterebin A-H, steviol, steviolbioside, steviolmonoside, stevioside, stevioside a-3, stigmasterol, umbelliferone, and xanthophylls.

Staff View: Synthesis and Characterization of Glycosides

Therefore, the aglycone structure (without asugar) must be important for topo II inhibition.

B., Synthesis of azide-alkyne fragments for click' chemical applications; formation of oligomers from orthogonally protected trialkylsilyl-propargyl azides and propargyl alcohols.

Organic chemistry: “Amino acid and polypeptide synthesis”. Amino acid synthesis--Gabriel synthesis; synthesis. degradation. Polypeptide synthesis-- () and () amino-protecting groups; protection of the terminus via ester formation; DCC () -activating reagent. An example of calculating and charge at a specific pH for a long polypeptide

M., Synthesis of bio-inspired hybrid polymers using peptide synthesis and protein engineering.
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  • Synthesis of C- and S-Glycosides (PDF Download …

    Syntheses of Hemoprotein Models that can be Covalently Attached onto Electrode Surfaces by Click Chemistry.

  • Synthesis and characterization of glycosides (Book, …

    J., Synthesis and Evaluation of Coumermycin A1 Analogues that Inhibit the Hsp90 Protein Folding Machinery.

  • Synthesis and characterization of glycosides

    H., Click chemistry as a route to cyclic tetrapeptide analogs: Synthesis of cyclo-[Pro-Val-y(triazole)-Pro-Tyr].

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Cyanogenic Glycosides: Synthesis, Physiology, and Phenotypic ..

This second edition is a short and comprehensive study on the best known approaches for preparing the main types of glycosides. It covers synthetic pathways of challenging glycosides known as antiviral or antineoplastic drugs, and synthetic substrates used for enzymatic detection, including those us...

Cardiac Glycosides Inhibit p53 Synthesis by a …

The synthesis of ribofuranosyl glycosides of echiguanines A and B, PI 4-kinase inhibitors, was achieved from 2-amino-4-chloropyrrolo[2,3-d]pyrimidine and 2,3-O-isopropylidene-5-O-(t-butyl) dimethylsilyl-α-D-ribofuranosyl chloride. The ribofuranosyl echiguanine A weakly inhibited PI 4-kinase.

cardiac glycosides, digoxin, ..

Certain pterins having a hydroxyalkyl side chain at C-6 have been found as glycosidic forms in certain prokaryotes, such as 2'-O-(α-D-glucopyranosyl) biopterin from various kinds of cyanobacteria, and limipterin from a green sulfur photosynthetic bacterium. Synthetic studies on glycosides of biopterin and related pterins have been made in view of the structural proof as well as for closer examination of their biological activities and functions. The syntheses of these natural pterin glycosides have effectively been achieved, mostly through appropriately protected N2-(N,N- dimethylaminomethylene)-3-[2-(4-nitrophenyl)ethyl]pterin derivatives as glycosyl acceptors, and are reviewed here.

change occur at the level of protein synthesis

Brazilian scientists recorded stevioside's ability to lower systemic blood pressure in rats in 1991. Then in 2000, a double-blind, placebo-controlled study was undertaken with 106 Chinese hypertensive men and women. Sixty subjects were given capsules containing stevioside (250 mg) or placebo thrice daily and followed up at monthly intervals for one year. After three months, the systolic and diastolic blood pressure of the stevioside group decreased significantly and the effect persisted over the whole year. The researchers concluded, "This study shows that oral stevioside is a well tolerated and effective modality that may be considered as an alternative or supplementary therapy for patients with hypertension." Another team of scientists tested the hypoglycemic effects of the individual glycoside chemicals in stevia and attributed the effect on glucose production to the glycosides steviol, isosteviol, and glucosilsteviol. The main sweetening glycoside, stevioside, did not produce this effect. Researchers in Denmark published a study (in 2000) which demonstrated that the hypoglycemic actions of stevioside and steviol are a result of their ability to stimulate insulin secretion via a direct action on beta cells. They concluded, "Results indicate that the compounds may have a potential role as antihyperglycemic agents in the treatment of type 2 diabetes mellitus."

Synthesis of Glycosides, Lactose, Glycoproteins …

N2 - The synthesis of ribofuranosyl glycosides of echiguanines A and B, PI 4-kinase inhibitors, was achieved from 2-amino-4-chloropyrrolo[2,3-d]pyrimidine and 2,3-O-isopropylidene-5-O-(t-butyl) dimethylsilyl-α-D-ribofuranosyl chloride. The ribofuranosyl echiguanine A weakly inhibited PI 4-kinase.

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