Tag: 323.0974

Evaluation of nucleotide C-Br···O-P contacts from ONIOM calculations: Theoretical insight into halogen bonding in nucleic acids was written by Xu, Lin;Sang, Peng;Zou, Jian-Wei;Xu, Ming-Biao;Li, Xue-Ming;Yu, Qing-Sen. And the article was included in Chemical Physics Letters in 2011.Recommanded Product: 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione This article mentions the following:

Halogen bonding can direct the local stereochem. properties of nucleic acids by unique geometric preferences but has been inaccessible to most theor. studies. Using a two-layer ONIOM method, halogen bonds buried in nucleic acid environments were studied by modeling the nucleotide C-Br···O-P contacts in 1P54 and 1RLG (PDB code). Several unconventional methods, associated with the electron d. distributions of the interacting atoms, showed the formation of halogen bonds through visualization of such non-covalent interactions in real space. The contributions of halogen bonds to the local conformation of the backbones were also demonstrated through comparison with parallel binding of non-brominated nucleotides. In the experiment, the researchers used many compounds, for example, 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5Recommanded Product: 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione).

5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5) belongs to tetrahydrofuran derivatives. THF (Tetrahydrofuran) is water-miscible and has a low viscosity making it a highly versatile solvent used in a variety of industries. Oxidations have also proved to be valuable and efficient approaches to chiral tetrahydrofuran derivatives.Recommanded Product: 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Thermomyces lanuginosus lipase-catalyzed regioselective acylation of nucleosides: Enzyme substrate recognition was written by Li, Ning;Zong, Min-Hua;Ma, Ding. And the article was included in Journal of Biotechnology in 2009.SDS of cas: 957-75-5 This article mentions the following:

Substrate recognition of Thermomyces lanuginosus lipase in the acylation of nucleosides was revealed through rational substrate engineering for the first time. T. lanuginosus lipase displayed higher catalytic activities and excellent 5′-regioselectivities (94->99%) in the acylation of ribonucleosides 1f-1j as compared to those in the acylation of 2′-deoxynucleosides 1a-1e. The higher reaction rates and excellent 5′-regioselectivities might derive from a favorable hydrogen bonding between the 2′-hydroxyl group of 1f-1j and phenolic hydroxyl group of Tyr-21 present in the hydrophilic region of the lipase. In the experiment, the researchers used many compounds, for example, 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5SDS of cas: 957-75-5).

5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5) belongs to tetrahydrofuran derivatives. THF (Tetrahydrofuran) is a stable compound with relatively low boiling point and excellent solvency. It is more basic than diethyl ether and forms stronger complexes with Li+, Mg2+, and boranes. It is a popular solvent for hydroboration reactions and for organometallic compounds such as organolithium and Grignard reagents.SDS of cas: 957-75-5

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Development, validation, and application of capillary zone electrophoresis method for determination of pyrimidine glucosides in seeds of Vicia faba L. var. minor was written by Kowalczyk, Mariusz;Krzyzanowska-Kowalczyk, Justyna;Stochmal, Anna. And the article was included in Phytochemical Analysis in 2021.Formula: C9H11BrN2O6 This article mentions the following:

Introduction : Consumption of fava beans seeds can be harmful to both humans and animals due to the presence of pyrimidine glucosides: vicine and convicine. Therefore, seeds, feed supplements, and protein extracts derived from fava beans should be monitored for the contents of pyrimidine derivatives Objectives : The main objective of this work was the development and validation of an inexpensive, uncomplicated, quick, and robust method for the quantitation of vicine and convicine in seeds of fava beans. Methodol. : Plant material was extracted using a dual-phase extraction system to remove lipophilic contaminants and deactivate residual enzymes. Pyrimidine glucosides together with the internal standard: 5-bromouridine were separated using capillary zone electrophoresis (CZE) on an uncoated fused-silica capillary with alk., tetraborate-based electrolyte. Linearity, limits of detection and quantitation, precision, accuracy, recovery, and robustness of the method were investigated. The method was applied for quantitation of pyrimidine glucosides in seeds. Results : Validation results suggest that the method is suitable for quantitation of pyrimidine glucosides, although it may not be sensitive enough for low-concentrated samples. Application of the method showed that seeds of the investigated variety of fava beans contain both vicine at 10-15 mg/g of dry weight and convicine at 3-5 mg/g of dry weight Conclusion : Developed and validated CZE-UV method is suitable for anal. of pyrimidine glucosides in seeds of Vicia faba L. var. minor. It can be used as an inexpensive, greener alternative to more advanced methods while providing equally reliable and accurate results. In the experiment, the researchers used many compounds, for example, 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5Formula: C9H11BrN2O6).

5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5) belongs to tetrahydrofuran derivatives. Tetrahydrofuran (THF) is a Lewis base that bonds to a variety of Lewis acids such as I2, phenols, triethylaluminum and bis(hexafluoroacetylacetonato)copper(II). Tetrahydrofuran can also be produced, or synthesised, via catalytic hydrogenation of furan. This process involves converting certain sugars into THF by digesting to furfural. An alternative to this method is the catalytic hydrogenation of furan with a nickel catalyst.Formula: C9H11BrN2O6

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Probing of G-Quadruplex Structures via Ligand-Sensitized Photochemical Reactions in ^BrU-Substituted DNA was written by Saha, Abhijit;Bombard, Sophie;Granzhan, Anton;Teulade-Fichou, Marie-Paule. And the article was included in Scientific Reports in 2018.Application of 957-75-5 This article mentions the following:

We studied photochem. reactions of ^BrU-substituted G-quadruplex (G4) DNA substrates with two pyrene-substituted polyazamacrocyclic ligands, M-1PY and M-2PY. Both ligands bind to and stabilize G4-DNA structures without altering their folding topol., as demonstrated by FRET-melting experiments, fluorimetric titrations and CD spectroscopy. Notably, the bis-pyrene derivative (M-2PY) behaves as a significantly more affine and selective G4 ligand, compared with its mono-pyrene counterpart (M-1PY) and control compounds Upon short UVA irradiation (365 nm) both ligands, in particular M-2PY, efficiently sensitize photoreactions at ^BrU residues incorporated in G4 structures and give rise to two kinds of photoproducts, namely DNA strand cleavage and covalent ligand-DNA photoadducts. Remarkably, the photoinduced strand cleavage is observed exclusively with G4 structures presenting ^BrU residues in lateral or diagonal loops, but not with parallel G4-DNA structures presenting only propeller loops. In contrast, the formation of fluorescent photoadducts is observed with all ^BrU-substituted G4-DNA substrates, with M-2PY giving significantly higher yields (up to 27%) than M-1PY. Both ligand-sensitized photoreactions are specific to ^BrU-modified G4-DNA structures with respect to double-stranded or stem-loop substrates. Thus, ligand-sensitized photoreactions with ^BrU-substituted G4-DNA may be exploited (i) as a photochem. probe, allowing “photofootprinting” of G4 folding topologies in vitro and (ii) for covalent trapping of G4 structures as photoadducts with pyrene-substituted ligands. In the experiment, the researchers used many compounds, for example, 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5Application of 957-75-5).

5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5) belongs to tetrahydrofuran derivatives. Tetrahydrofurans and furans are important oxygen-containing heterocycles that often exhibit interesting properties for biological applications or applications in the cosmetic industry. Tetrahydrofuran can also be produced, or synthesised, via catalytic hydrogenation of furan. This process involves converting certain sugars into THF by digesting to furfural. An alternative to this method is the catalytic hydrogenation of furan with a nickel catalyst.Application of 957-75-5

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Probing of G-Quadruplex Structures via Ligand-Sensitized Photochemical Reactions in ^BrU-Substituted DNA was written by Saha, Abhijit;Bombard, Sophie;Granzhan, Anton;Teulade-Fichou, Marie-Paule. And the article was included in Scientific Reports in 2018.Application of 957-75-5 This article mentions the following:

We studied photochem. reactions of ^BrU-substituted G-quadruplex (G4) DNA substrates with two pyrene-substituted polyazamacrocyclic ligands, M-1PY and M-2PY. Both ligands bind to and stabilize G4-DNA structures without altering their folding topol., as demonstrated by FRET-melting experiments, fluorimetric titrations and CD spectroscopy. Notably, the bis-pyrene derivative (M-2PY) behaves as a significantly more affine and selective G4 ligand, compared with its mono-pyrene counterpart (M-1PY) and control compounds Upon short UVA irradiation (365 nm) both ligands, in particular M-2PY, efficiently sensitize photoreactions at ^BrU residues incorporated in G4 structures and give rise to two kinds of photoproducts, namely DNA strand cleavage and covalent ligand-DNA photoadducts. Remarkably, the photoinduced strand cleavage is observed exclusively with G4 structures presenting ^BrU residues in lateral or diagonal loops, but not with parallel G4-DNA structures presenting only propeller loops. In contrast, the formation of fluorescent photoadducts is observed with all ^BrU-substituted G4-DNA substrates, with M-2PY giving significantly higher yields (up to 27%) than M-1PY. Both ligand-sensitized photoreactions are specific to ^BrU-modified G4-DNA structures with respect to double-stranded or stem-loop substrates. Thus, ligand-sensitized photoreactions with ^BrU-substituted G4-DNA may be exploited (i) as a photochem. probe, allowing “photofootprinting” of G4 folding topologies in vitro and (ii) for covalent trapping of G4 structures as photoadducts with pyrene-substituted ligands. In the experiment, the researchers used many compounds, for example, 5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5Application of 957-75-5).

5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (cas: 957-75-5) belongs to tetrahydrofuran derivatives. Tetrahydrofurans and furans are important oxygen-containing heterocycles that often exhibit interesting properties for biological applications or applications in the cosmetic industry. Tetrahydrofuran can also be produced, or synthesised, via catalytic hydrogenation of furan. This process involves converting certain sugars into THF by digesting to furfural. An alternative to this method is the catalytic hydrogenation of furan with a nickel catalyst.Application of 957-75-5

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem