Tag: M.W=150-200

Pyridine is colorless, but older or impure samples can appear yellow. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Quality Control of 31181-90-5.

Linciano, Pasquale;Pinzi, Luca;Belluti, Silvia;Chianese, Ugo;Benedetti, Rosaria;Moi, Davide;Altucci, Lucia;Franchini, Silvia;Imbriano, Carol;Sorbi, Claudia;Rastelli, Giulio research published 《 Inhibitors of histone deacetylase 6 based on a novel 3-hydroxy-isoxazole zinc binding group》, the research content is summarized as follows. Histone deacetylase 6 (HDAC6) is an established drug target for cancer treatment. Inhibitors of HDAC6 based on a hydroxamic acid zinc binding group (ZBG) are often associated with undesirable side effects. Herein, we describe the identification of HDAC6 inhibitors based on a completely new 3-hydroxy-isoxazole ZBG. A series of derivatives decorated with different aromatic or heteroaromatic linkers, and various cap groups were synthesized and biol. tested. In vitro tests demonstrated that some compounds are able to inhibit HDAC6 with good potency, the best candidate reaching an IC₅₀ of 700 nM. Such good potency obtained with a completely new ZBG make these compounds particularly attractive. The effect of the most active inhibitors on the acetylation levels of histone H3 and α- tubulin and their anti-proliferative activity of DU145 cells were also investigated. Docking studies were performed to evaluate the binding mode of these new derivatives and discuss structure-activity relationships.

31181-90-5, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.

5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., Quality Control of 31181-90-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Application of C5H4ClNO2S.

Liu, Ai-Ran;Zhang, Lei;Li, Jiao;Wusiman, Abudureheman research published 《 Catalyst-free one-pot, four-component approach for the synthesis of di- and tri-substituted N-sulfonyl formamidines》, the research content is summarized as follows. A straightforward one-pot, multicomponent approach was developed to synthesize di- and tri-substituted N-sulfonyl formamidines from sulfonyl chlorides, NaN₃, Et propiolate, and primary/secondary amines under mild conditions without catalysts or additives. Structural anal. of the di-substituted sulfonyl formamidines indicated formation of the E-syn/anti isomeric form. Tri-substituted analogs only formed E-isomers.

Application of C5H4ClNO2S, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., 16133-25-8.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Electric Literature of 16133-25-8.

Liu, Chengkou;Cai, Chen;Yuan, Chengcheng;Jiang, Qiang;Fang, Zheng;Guo, Kai research published 《 Visible-light-promoted N-centered radical generation for remote heteroaryl migration》, the research content is summarized as follows. An efficient visible-light-mediated N-H heteroarylation via remote heteroaryl ipso-migration was accomplished. Moderate to good yields were obtained with good functional group tolerance. Moreover, a simple and readily available organic photoredox catalyst was employed, avoiding the use of complex and costly noble metal compounds

16133-25-8, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., Electric Literature of 16133-25-8

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is colorless, but older or impure samples can appear yellow. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Product Details of C5H4ClNO2S.

Liu, Chengkou;Jiang, Qiang;Lin, Yang;Fang, Zheng;Guo, Kai research published 《 C- to N-Center Remote Heteroaryl Migration via Electrochemical Initiation of N Radical by Organic Catalyst》, the research content is summarized as follows. Herein an exogenous oxidant- and metal-free electrochem. heteroaryl migration triggered by N radicals to construct new N-C bonds was developed. This methodol. features a high atom economy and utilization rate of energy, and it is insensitive to water and air. Moreover, a user-friendly undivided cell was employed. The use of an organic catalyst makes it more efficient, green, and practical.

16133-25-8, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., Product Details of C5H4ClNO2S

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The critical parameters of pyridine are pressure 6.70 MPa, temperature 620 K and volume 229 cm3·mol−1. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. In the temperature range 340–426 °C its vapor pressure p can be described with the Antoine equation.. HPLC of Formula: 766-11-0.

Liu, Gang;Abraham, Sunny;Liu, Xing;Xu, Shimin;Rooks, Allison M.;Nepomuceno, Ron;Dao, Alan;Brigham, Daniel;Gitnick, Dana;Insko, Darren E.;Gardner, Michael F.;Zarrinkar, Patrick P.;Christopher, Ron;Belli, Barbara;Armstrong, Robert C.;Holladay, Mark W. research published 《 Discovery and optimization of a highly efficacious class of 5-aryl-2-aminopyridines as FMS-like tyrosine kinase 3 (FLT3) inhibitors》, the research content is summarized as follows. Based on a putative binding mode of quizartinib, a potent FMS-like tyrosine kinase 3 (FLT3) inhibitor in Phase III clin. development, the authors have designed de novo a simpler aminopyridine-based hinge binding motif. Further optimization focusing on maximizing in vivo efficacy and minimizing CYP3A4 time-dependent inhibition resulted in a highly efficacious compound I in tumor xenograft model for further preclin. development.

766-11-0, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , HPLC of Formula: 766-11-0

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

At 25 °C pyridine has a viscosity of 0.88 mPa/s and thermal conductivity of 0.166 W·m−1·K−1. 5315-25-3, formula is C6H6BrN, Name is 2-Bromo-6-methylpyridine. The enthalpy of vaporization is 35.09 kJ·mol−1 at the boiling point and normal pressure.The enthalpy of fusion is 8.28 kJ·mol−1 at the melting point. Formula: C6H6BrN.

Liu, Kanglei;Lalancette, Roger A.;Jakle, Frieder research published 《 Tuning the Structure and Electronic Properties of B-N Fused Dipyridylanthracene and Implications on the Self-Sensitized Reactivity with Singlet Oxygen》, the research content is summarized as follows. We demonstrate that the modification of anthracene with B ← N Lewis pairs at their periphery serves as a highly effective tool to modify the electronic structure with important ramifications on the generation and reactivity toward singlet oxygen. A series of BN-fused dipyridylanthracenes with Me groups in different positions of the pyridyl ring have been prepared via directed electrophilic borylation. The steric and electronic effects of the substituents on the structural features and electronic properties of the isomeric borane-functionalized products have been investigated in detail, aided by exptl. tools and computational studies. We find that BDPA-2Me, with Me groups adjacent to the pyridyl N, has the longest B-N distance and shows overall less structural distortions, whereas BDPA-5Me with the Me group close to the anthracene backbone experiences severe distortions that are reflected in the buckling of the anthracene framework and dislocation of the boron atoms from the planes of the Ph rings they are attached to. The substitution pattern also has a dramatic effect on the self-sensitized reactivity of the acenes toward O₂ and the thermal release of singlet oxygen from the resp. endoperoxides. Kinetic analyses reveal that BDPA-2Me rapidly reacts with O₂, whereas BDPA-5Me is converted only very slowly to its endoperoxide. However, the latter serves as an effective singlet oxygen sensitizer, as demonstrated in the preferential formation of the endoperoxide of dimethylanthracene in a competition experiment These results demonstrate that even relatively small modifications in the substitution of the pyridyl ring of BN-fused dipyridylanthracenes change the steric and electronic structure, resulting in dramatically different reactivity patterns. Our findings provide important guidelines for the design of highly effective sensitizers for singlet oxygen on one hand and the realization of materials that readily form endoperoxides in a self-sensitized manner and then thermally release singlet oxygen on demand on the other hand.

Formula: C6H6BrN, 2-Bromo-6-methylpyridine (2BMPy) is a bromopyridine derivative. It is formed when 2-chloro-6-methylpyridine is heated with bromotrimethylsilane. Its synthesis from various methods have been reported.
2-Bromo-6-methylpyridine is a building block in the preparation of nitrogen containing heterocyclic compounds.
2-Bromo-6-methylpyridine is an organic compound that belongs to the group of pyridinium halides. It is soluble in common solvents such as water, ethanol, and acetone. 2BMPy has been shown to act as a glutamate receptor antagonist and has been used in the study of glutamate receptors, including their subtypes. This chemical has also been shown to have antioxidant properties and can be used in the prevention of atherosclerosis., 5315-25-3.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

At 25 °C pyridine has a viscosity of 0.88 mPa/s and thermal conductivity of 0.166 W·m−1·K−1. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. The enthalpy of vaporization is 35.09 kJ·mol−1 at the boiling point and normal pressure.The enthalpy of fusion is 8.28 kJ·mol−1 at the melting point. Computed Properties of 31181-90-5.

Liu, Meifang;Han, Yi;Yuan, Wei;Guo, Changxiang;Shi, Shiling;Liu, Xia;Chen, Yulan research published 《 Fluorescent BF₂ complexes of pyridyl-isoindoline-1-ones: synthesis, characterization and their distinct response to mechanical force》, the research content is summarized as follows. Three boron-pyridyl-isoindoline-1-one based dyes (I: B1, B2, and B3) with varied side groups were facilely synthesized. Detailed analyses were carried out concerning the crystal conformation, structure dependent photophys. properties and mechanochromic fluorescence (MCF). The MCF behaviors and solid-state emission are correlated to the different side groups. Upon grinding, the emission of B1 exhibited little changes, whereas reversible MCF with a distinct color change was observed for B2 and B3. B3 possessing sterically hindered tri-Ph amine (TPA) groups showed the most prominent MCF effect. For instance, mech. grinding resulted in a red shift of fluorescence from 600 nm to 650 nm. The electronic and steric effects of the donating substituents play important roles in modulating the intramol. charge-transfer effect and intermol. interactions. These sensitively and readily tunable mechano-responsive behaviors of the boron-pyridyl-isoindoline-1-one based dyes make them potential candidates for smart fluorescent materials.

31181-90-5, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.

5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., Computed Properties of 31181-90-5

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. TThe standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Category: pyridine-derivatives.

Liu, Na;Wang, Yanfen;Huang, Gongchao;Ji, Conghui;Fan, Wei;Li, Haitao;Cheng, Ying;Tian, Hongqi research published 《 Design, synthesis and biological evaluation of 1H-pyrrolo[2,3-b]pyridine and 1H-pyrazolo[3,4-b]pyridine derivatives as c-Met inhibitors》, the research content is summarized as follows. Five novel 1H-pyrrolo[2,3-b]pyridine or 1H-pyrazolo[3,4-b]pyridine derivatives, with a methylene, sulfur, sulfoxide or cyclopropyl group as a linker, were designed, synthesized and biol. evaluated against c-Met and ALK. The development of these methods of compound synthesis may provide an important reference for the construction of novel 7-azaindole and 7-azaindazole derivatives with a single atom linker. The enzyme assay and cell assay in-vitro showed that 3-((2,6-dichloro-3-fluorophenyl)thio)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-b]pyridine displayed strong c-Met kinase inhibition with IC₅₀ of 22.8 nM, moderate ALK kinase inhibition, and strong cell inhibition with MKN-45 IC₅₀ of 329 nM and EBC-1 IC₅₀ of 479 nM. In order to find the better candidate compounds, 3-((2,6-dichloro-3-fluorophenyl)sulfide)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridine, 3-((2,6-dichloro-3-fluorophenyl)thio)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-b]pyridine and 3-(1-(2,6-dichloro-3-fluorophenyl)cyclopropyl)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)1H-pyrazolo[3,4-b]pyridine were selected as tool compounds for further optimization.

Category: pyridine-derivatives, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , 766-11-0.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

At 25 °C pyridine has a viscosity of 0.88 mPa/s and thermal conductivity of 0.166 W·m−1·K−1. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. The enthalpy of vaporization is 35.09 kJ·mol−1 at the boiling point and normal pressure.The enthalpy of fusion is 8.28 kJ·mol−1 at the melting point. Formula: C6H4BrNO.

Kumar, Santosh;Rastogi, Sumit K.;Singh, Akansha;Bharati Ahirwar, Mini;Deshmukh, Milind M.;Sinha, Arun K.;Kumar, Ravindra research published 《 Friedel-Crafts-type Reaction of (Het)Arenes with Aldehydes/Ketones under Acid-Free Conditions using Neutral Ionic Liquid: A Convenient Routes to bis(Indolyl)methanes and Beyond》, the research content is summarized as follows. Acid-free approach has been demonstrated for Friedel-Crafts-type reaction of (het)arenes with carbonyls using neutral ionic liquid (NIL). Methodol. is enabled to afford a densely functionalized bis(indolyl)methanes in good to excellent yields. This conditions is also compatible to the synthesis of 3,3-di(indol-3-yl)indolin-2-ones, bis(4-hydroxycoumarines) and triarylmethanes (total 40 examples; up to 98% yields). Gram-scale reactions and recycling study were carried out to demonstrate the practicality of present methodol. DFT studies illustrate the catalytic cycle involving simultaneous activation of C=O and indole C-H bond by NIL followed by C-C bond formation.

Formula: C6H4BrNO, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.

5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., 31181-90-5.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is colorless, but older or impure samples can appear yellow. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Name: Pyridine-3-sulfonyl chloride.

Kundu, Gourab;Sperger, Theresa;Rissanen, Kari;Schoenebeck, Franziska research published 《 A Next-Generation Air-Stable Palladium(I) Dimer Enables Olefin Migration and Selective C-C Coupling in Air》, the research content is summarized as follows. We report a new air-stable Pd^I dimer, [Pd(μ-I)(PCy₂^tBu)]₂, which triggers E-selective olefin migration to enamides and styrene derivatives in the presence of multiple functional groups and with complete tolerance of air. The same dimer also triggers extremely rapid C-C coupling (alkylation and arylation) at room temperature in a modular and triply selective fashion of aromatic C-Br, C-OTf/OFs, and C-Cl bonds in poly(pseudo)halogenated arenes, displaying superior activity over previous Pd^I dimer generations for substrates that bear substituents ortho to C-OTf.

Name: Pyridine-3-sulfonyl chloride, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., 16133-25-8.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem