Pyridine-derivatives

An article Cink4T, a quinazolinone-based dual inhibitor of Cdk4 and tubulin polymerization, identified via ligand-based virtual screening, for efficient anticancer therapy WOS:000459358600010 published article about DEPENDENT KINASE INHIBITOR; MICROTUBULE POLYMERIZATION; CDK4-SPECIFIC INHIBITORS; BIOLOGICAL EVALUATION; SELECTIVE INHIBITORS; CRYSTAL-STRUCTURE; NONPLANAR ANALOG; CYCLIN D1-CDK4; IN-VITRO; PROTEIN in [Sonawane, Vinay; Chaudhuri, Bhabatosh] De Montfort Univ, Leicester Sch Pharm, Leicester LE1 9BH, Leics, England; [Siddique, Mohd Usman Mohd; Sinha, Barij Nayan; Jayaprakash, Venkatesan] Birla Inst Technol, Dept Pharmaceut Sci & Technol, Ranchi 835215, Bihar, India; [Jadav, Surender Singh] Indian Inst Chem Technol, CSIR, Hyderabad 500007, Telangana, India in 2019, Cited 79. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1. Safety of 3-Pyridinecarboxaldehyde

Inhibition of cyclin dependent kinase 4 (Cdk4) prevents cancer cells from entering the early G(0)/G(1) phase of the cell division cycle whereas inhibiting tubulin polymerization blocks cancer cells’ ability to undergo mitosis (M) late in the cell cycle. We had reported earlier that two non-planar and relatively non-toxic fascaplysin derivatives, an indole and a tryptoline, inhibit Cdk4 with IC50 values of 6.2 and 10 mu M, respectively. Serendipitously, we had also found that they inhibited tubulin polymerization. The molecules were efficacious in mouse tumor models. We have now identified Cink4T in a 59-compound quinazolinone library, designed on the basis of ligand-based virtual screening, as a compound that inhibits Cdk4 and tubulin. Its IC50 value for Cdk4 inhibition is 0.47 mu M and >50 mu M for inhibition of Cdk1, Cdk2, Cdk6, Cdk9. Cink4T inhibits tubulin polymerization with an IC50 of 0.6 mu M. Molecular modelling studies on Cink4T with Cdk4 and tubulin crystal structures lend support to these observations. Cancer cell cycle analyses confirm that Cink4T blocks cells at both G(0)/G(1) and M phases as it should if it were to inhibit both Cdk4 and tubulin polymerization. Our results show, for the very first time, that virtual screening can be used to design novel inhibitors that can potently block two crucial phases of the cell division cycle. (C) 2019 Elsevier Masson SAS. All rights reserved.

Safety of 3-Pyridinecarboxaldehyde. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Sonawane, V; Siddique, MUM; Jadav, SS; Sinha, BN; Jayaprakash, V; Chaudhuri, B or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Ajani, OO; Iyaye, KT; Aderohunmu, DV; Olanrewaju, IO; Germann, MW; Olorunshola, SJ; Bello, BL in ELSEVIER published article about QUINOLINE DERIVATIVES; ESCHERICHIA-COLI; BINDING; MECHANISMS; RESISTANCE; DOCKING; OVENS in [Ajani, Olayinka O.; Iyaye, King T.; Aderohunmu, Damilola V.; Olanrewaju, Ifedolapo O.] Covenant Univ, Dept Chem, CST, Km 10 Idiroko Rd,PMB 1023, Ota, Ogun State, Nigeria; [Germann, Markus W.; Bello, Babatunde L.] Georgia State Univ, Dept Chem, Atlanta, GA 30302 USA; [Olorunshola, Shade J.] Covenant Univ, Dept Biol Sci, CST, Km 10 Idiroko Rd,PMB 1023, Ota, Ogun State, Nigeria in 2020.0, Cited 53.0. Formula: C6H5NO. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1

Microwave-assisted approach was utilized as green approach to access a series of 2-pro pylquinoline-4-carbohydrazide hydrazone derivatives 10a-j of aromatic and heteroaromatic aldehydes in highly encouraging yields. It involved four steps reaction which was initiated with ring opening reaction of isatin in a basified environment and subsequent cross-coupling with pentan-2-one to produce compound 7. Esterification of 7 in acid medium led to the formation of compound 8 which was reacted with hydrazine hydrate to access 9 which upon microwave-assisted condensed with aromatic and heteroaromatic aldehydes furnished the targeted compounds 10a-j. The structures of 10aj were confirmed by physico-chemical, elemental analyses and spectroscopic characterization which include UV, FT-IR, H-1 and C-13 NMR as well as DEPT-135. The targeted compounds 10a-j, alongside with gentamicin clinical standard, were investigated for their antibacterial efficacies using agar diffusion method. 2-Propyl-N’-(pyridine-3-ylmethylene) quinoline-4-carbohydrazide 10j emerged as the best antibacterial hydrazide-hydrazone with lowest MIC value of 0.39 +/- 0.02 – 1.56 +/- 0.02 mu g/ mL across all the organisms screened. (C) 2018 Production and hosting by Elsevier B.V. on behalf of King Saud University.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Ajani, OO; Iyaye, KT; Aderohunmu, DV; Olanrewaju, IO; Germann, MW; Olorunshola, SJ; Bello, BL or concate me.. Formula: C6H5NO

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. In 2019.0 J BIOSCI BIOENG published article about THERMAL-STABILITY; ACID; PH in [Oguro, Yoshifumi; Nakamura, Ayana; Kurahashi, Atsushi] Hakkaisan Brewery Co Ltd, 1051 Nagamori, Minamiuonuma, Niigata 9497112, Japan in 2019.0, Cited 22.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5.

Koji amazake, prepared from rice koji, is a traditional Japanese sweet beverage. The main source of sweetness is glucose derived from rice starch following digestion by enzymes of Aspergillus oryzae during saccharification. The temperature of this process was empirically determined as 45 degrees C-60 degrees C, but no studies have systematically investigated the effect of temperature on saccharification efficiency. We addressed this in the present study by evaluating saccharification efficiency at various temperatures. We found that glucose content was the highest at 50 degrees C (100%) and was reduced at temperatures of 40 degrees C (66.4%), 60 degrees C (91.9%), and 70 degrees C (76.6%). We previously reported that 12 types of oligosaccharides are present in koji amazake; the levels of eight of these, namely nigerose, kojibiose, trehalose, isomaltose, gentiobiose, raffinose, panose, and isomaltotriose, were the highest at 50 degrees C-60 degrees C, whereas sophorose production was maximal at 70 degrees C. Based on these findings, we initially performed saccharification at 50 degrees C and then switched the temperature to 70 degrees C. The maximum amount of each saccharide including sophorose that was produced was close to the values obtained at these two temperatures. Thus, oligosaccharide composition of koji amazake is dependent on saccharification temperature. These findings provide useful information for improving the consumer appeal of koji amazake by enhancing oligosaccharide content. (C) 2018, The Society for Biotechnology, Japan. All rights reserved.

About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Oguro, Y; Nakamura, A; Kurahashi, A or concate me.. Quality Control of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Anticancer Activity of Platinum (II) Complex with 2-Benzoylpyridine by Induction of DNA Damage, S-Phase Arrest, and Apoptosis WOS:000534475000010 published article about CELL-CYCLE ARREST; G-QUADRUPLEX DNA; METAL-COMPLEXES; CISPLATIN-DNA; TUMOR; INHIBITION; BINDING; RECOGNITION; P53; PROLIFERATION in [Li, Yu-Lan; Gan, Xin-Li; Zhu, Rong-Ping; Jin, Junfei] Guilin Med Univ, Affiliated Hosp, Lab Hepatobiliary & Pancreat Surg, Guilin 541001, Guangxi, Peoples R China; [Li, Yu-Lan; Jin, Junfei] Guilin Med Univ, Guangxi Key Lab Mol Med Liver Injury & Repair, Guilin 541001, Guangxi, Peoples R China; [Li, Yu-Lan; Jin, Junfei] Guilin Med Univ, China USA Lipids Hlth & Dis Res Ctr, Guilin 541001, Guangxi, Peoples R China; [Wang, Xuehong; Huang, Zhaoquan] Guilin Med Univ, Dept Pathol, Affiliated Hosp, 15 Lequn Rd, Guilin 541001, Guangxi, Peoples R China; [Liao, Duan-Fang] Hunan Univ Chinese Med, Div Stem Cell Regulat & Applicat, State Key Lab Chinese Med Powder & Med Innovat Hu, Changsha, Hunan, Peoples R China; [Li, Yu-Lan] Guangxi Normal Univ, Sch Chem & Pharm, Key Lab Chem & Mol Engn Med Resources, 15 Yucai Rd, Guilin 541004, Peoples R China; [Zhu, Rong-Ping] Nanchang Univ, Ganzhou Peoples Hosp, Dept Emergency Traumat Surg, Affiliated Ganzhou Hosp, Ganzhou 341000, Jiangxi, Peoples R China in 2020.0, Cited 54.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1. HPLC of Formula: C12H9NO

Objective: To overcome the disadvantages of cisplatin, numerous platinum (Pt) complexes have been prepared. However, the anticancer activity and mechanism of Pt(II) complexed with 2-benzoylpyridine [Pt(II)-Bpy]: [PtCl2(DMSO)L] (DMSO = dimethyl sulfoxide, L = 2-benzoylpyridine) in cancer cells remain unknown. Methods: Pt(II)-Bpy was synthesized and characterized by spectrum analysis. Its anticancer activity and underlying mechanisms were demonstrated at the cellular, molecular, and in vivo levels. Results: Pt(II)-Bpy inhibited tumor cell growth, especially HepG2 human liver cancer cells, with a half-maximal inhibitory concentration of 9.8 +/- 0.5 mu M, but with low toxicity in HL-7702 normal liver cells. Pt(H)Bpy induced DNA damage, which was demonstrated through a marked increase in the expression of cleaved-poly (ADP ribose) polymerase (PARP) and gamma-H2A histone family member X and a decrease in PARP expression. The interaction of Pt(II)-Bpy with DNA at the molecular level was most likely through an intercalation mechanism, which might be evidence of DNA damage. Pt(II)-Bpy initiated cell cycle arrest at the S phase in HepG2 cells. It also caused severe loss of the mitochondria( membrane potential; a decrease in the expression of caspase-9 and caspase-3; an increase in reactive oxygen species levels; the release of cytochrome c and apoptotic protease activation factor; and the activation of caspase-9 and caspase-3 in HepG2 cells, which in turn resulted in apoptosis. Meanwhile, changes in p53 and related proteins were observed including the upregulation of p53, the phosphorylation of p53, p21, B-cell lymphoma-2-associated X protein, and NOXA; and the down-regulation of B-cell lymphoma 2. Moreover, Pt(II)-Bpy displayed marked inhibitory effects on tumor growth in the HepG2 nude mouse model. Conclusion: Pt(II)-Bpy is a potential candidate for cancer chemotherapy.

About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Li, YL; Gan, XL; Zhu, RP; Wang, XH; Liao, DF; Jin, JF; Huang, ZQ or concate me.. HPLC of Formula: C12H9NO

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Safety of 3-Pyridinecarboxaldehyde. In 2019.0 EUR J ORG CHEM published article about ONE-POT SYNTHESIS; HURD-MORI-REACTION; 1,3,4-THIADIAZOLE DERIVATIVES; MOLECULAR-IODINE; DEPRESSANT ACTIVITY; MEDIATED SYNTHESIS; N-TOSYLHYDRAZONES; C-N; BOND; 2-AMINO-1,3,4-THIADIAZOLES in [Zhu, Fuyuan; Yan, Zhaohua; Ai, Chengmei; Wang, Yanmei; Lin, Sen] Nanchang Univ, Coll Chem, 999 Xuefu Dadao, Nanchang 330031, Jiangxi, Peoples R China in 2019.0, Cited 56.0. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1.

A new three-component strategy from aldehyde, p-toluenesulfonyl hydrazide and potassium thiocyanate for the synthesis of 2-aminothiadiazoles promoted by I-2 under metal-free conditions has been described. Potassium thiocyanate was used as an odorless and low-toxicity sulfur source. A wide range of aromatic aldehydes can smoothly undergo the three-component cyclization reaction under the optimized conditions to give the corresponding products in moderate to good yields.

Safety of 3-Pyridinecarboxaldehyde. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Zhu, FY; Yan, ZH; Ai, CM; Wang, YM; Lin, S or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Ibrahim, GR; Shah, I; Gariballa, S; Yasin, J; Barker, J; Ashraf, SS in [Ibrahim, Ghada Rashad; Shah, Iltaf] UAE Univ, Coll Sci, Dept Chem, POB 15551, Al Ain, U Arab Emirates; [Gariballa, Salah; Yasin, Javed] UAE Univ, Coll Med, Dept Internal Med, POB 15551, Al Ain, U Arab Emirates; [Barker, James] Kingston Univ, Dept Chem & Pharmaceut Sci, Penrhyn Rd, Kingston Upon Thames KT1 2EE, Surrey, England; [Ashraf, Syed Salman] Khalifa Univ, Coll Arts & Sci, Dept Chem, POB 127788, Abu Dhabi, U Arab Emirates published Significantly Elevated Levels of Plasma Nicotinamide, Pyridoxal, and Pyridoxamine Phosphate Levels in Obese Emirati Population: A Cross-Sectional Study in 2020.0, Cited 48.0. Safety of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5.

Water-soluble vitamins like B3 (nicotinamide), B6 (pyridoxine), and B9 (folic acid) are of utmost importance in human health and disease, as they are involved in numerous critical metabolic reactions. Not surprisingly, deficiencies of these vitamins have been linked to various disease states. Unfortunately, not much is known about the physiological levels of B6 vitamers and vitamin B3 in an ethnically isolated group (such as an Emirati population), as well as their relationship with obesity. The aim of the present study was to quantify various B6 vitamers, as well as B3, in the plasma of obese and healthy Emirati populations and to examine their correlation with obesity. A sensitive and robust HPLC-MS/MS-based method was developed for the simultaneous quantitation of five physiologically relevant forms of vitamin B6, namely pyridoxal, pyridoxine, pyridoxamine, pyridoxamine phosphate, and pyridoxal phosphate, as well as nicotinamide, in human plasma. This method was used to quantify the concentrations of these vitamers in the plasma of 57 healthy and 57 obese Emirati volunteers. Our analysis showed that the plasma concentrations of nicotinamide, pyridoxal, and pyridoxamine phosphate in the obese Emirati population were significantly higher than those in healthy volunteers (p< 0.0001,p= 0.0006, andp= 0.002, respectively). No significant differences were observed for the plasma concentrations of pyridoxine and pyridoxal phosphate. Furthermore, the concentrations of some of these vitamers in healthy Emirati volunteers were significantly different than those published in the literature for Western populations, such as American and European volunteers. This initial study underscores the need to quantify micronutrients in distinct ethnic groups, as well as people suffering from chronic metabolic disorders. Safety of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Ibrahim, GR; Shah, I; Gariballa, S; Yasin, J; Barker, J; Ashraf, SS or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Nian, SF; Ling, F; Chen, JC; Wang, Z; Shen, HW; Yi, X; Yang, YF; She, YB; Zhong, WH in [Nian, Sanfei; Ling, Fei; Chen, Jiachen; Wang, Ze; Shen, Haiwei; Yi, Xiao; Zhong, Weihui] Zhejiang Univ Technol, Coll Pharmaceut Sci, Minist Educ, Key Lab Green Pharmaceut Technol & Related Equipm, Hangzhou 310014, Zhejiang, Peoples R China; [Yang, Yun-Fang; She, Yuanbin] Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China; [Yang, Yun-Fang] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA published Highly Enantioselective Hydrogenation of Non-ortho-Substituted 2-Pyridyl Aryl Ketones via Iridium-f-Diaphos Catalysis in 2019.0, Cited 44.0. Product Details of 91-02-1. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1.

This work disclosed a highly enantioselective hydrogenation of non-ortho-substituted 2-pyridyl aryl ketones via Ir/f-diaphos catalysis. This catalytic system allows for full control over the configuration of the stereocenter, affording two enantiomers of the desired products with extremely high enantioselectivity (up to >99% ee in most cases) and excellent reactivity (TON of up to 19600, TOF of 1633 h(-1)) under mild conditions. Density functional theory calculations and control experiments revealed that the relay hydrogen bonding among the solvent isopropanol, substrate, and ligand is crucial for high ee’s.

Product Details of 91-02-1. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Nian, SF; Ling, F; Chen, JC; Wang, Z; Shen, HW; Yi, X; Yang, YF; She, YB; Zhong, WH or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Quality Control of Phenyl(pyridin-2-yl)methanone. In 2019.0 CHEMISTRYSELECT published article about CATALYZED DENITROGENATIVE TRANSANNULATION; METAL-ORGANIC FRAMEWORK; ONE-POT SYNTHESIS; H BONDS; COUPLING REACTION; BENZYLIC HALIDES; GENERAL-METHOD; ARYL BROMIDES; ARYLATION; FUNCTIONALIZATION in [Chandrasekar, Selvaraj; Sangeetha, Subramani; Sekar, Govindasamy] Indian Inst Technol Madras, Dept Chem, Chennai 600036, Tamil Nadu, India in 2019.0, Cited 78.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1.

A simple, effortless, and efficacious protocol for the synthesis of highly fluorescing imidazo[1,5-a]pyridines via copper catalyzed inter-/intramolecular C-N bond formation between readily available pyridyl alcohols with either benzyl amines or amino acids has been developed. This domino reaction is involved with alcohol oxidation/condensation/oxidative amination sequence to synthesize imidazo[1,5-a]pyridines in good to excellent yields. The fluorescence studies of these compounds indicated a bathochromic shift for the electron donating substituents, whereas a hypsochromic shift for the electron withdrawing substituents. Synthetic modification of the groups attached to the heterocyclic core showed a profound impact on the emission properties when subjected to pH and solvent polarity change.

Quality Control of Phenyl(pyridin-2-yl)methanone. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Chandrasekar, S; Sangeetha, S; Sekar, G or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Quality Control of Phenyl(pyridin-2-yl)methanone. Recently I am researching about ONE-POT SYNTHESIS; ARYL HALIDES; DERIVATIVES; ALCOHOLS; FLUORIDE; MECHANOCHEMISTRY; NANOPARTICLES; HYDROCARBONS; ACTIVATION; VINYLATION, Saw an article supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering DivisionUnited States Department of Energy (DOE) [DE-AC02-76SF00515]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Hosseini, A; Schreiner, PR. The CAS is 91-02-1. Through research, I have a further understanding and discovery of Phenyl(pyridin-2-yl)methanone

Ball milling of calcium carbide (CaC2) enables the reaction of its ethynyl moiety with organic electrophiles. This was realized simply by co-milling CaC(2)with organic substrates in a sealed jar without the need for an additive or a catalyst. Various ketones including those bearing alpha-hydrogens were ethynylated in good yields at short reaction times. Aryl halides are also amenable substrates for this protocol as they furnish aryl ethynes through a benzyne intermediate. This method offers a practical and cheap alternative to the established procedures for introducing ethynyl functionalities.

About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Hosseini, A; Schreiner, PR or concate me.. Quality Control of Phenyl(pyridin-2-yl)methanone

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Bachmann, T; Schnurr, C; Zainer, L; Rychlik, M in ELSEVIER SCI LTD published article about PYRIDOXINE-BETA-GLUCOSIDE; PARTICULATE GLUCOSYLTRANSFERASE; PROTEIN GLYCOSYLATION; GROWING CULTURE; N-GLYCOSYLATION; FUSARIUM TOXINS; RICE BRAN; SEEDLINGS; GLUCURONIDATION; BIOAVAILABILITY in [Bachmann, Thomas; Schnurr, Christian; Zainer, Laura; Rychlik, Michael] Tech Univ Munich, Chair Analyt Food Chem, Maximus von Imhof Forum 2, D-85354 Freising Weihenstephan, Germany in 2020.0, Cited 107.0. SDS of cas: 65-22-5. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5

Various 5′-beta-saccharides of pyridoxine, namely the mannoside, galactoside, arabinoside, maltoside, cellobioside and glucuronide, were synthesized chemically according to KOENIGS-KNORR conditions using alpha 4,3-O-iso-propylidene pyridoxine and the respective acetobromo glycosyl donors with AgOTf (3.0 eq.) and NIS (3.0 eq.) as promoters at 0 degrees C. Furthermore, 5′-beta-[C-13(6)]-labeled pyridoxine glucoside (PNG) was prepared starting from [C-1(3)6]-glucose and pyridoxine. Additionally, two strategies were examined for the synthesis of 5′-beta-pyridoxal glucoside (PLG).

About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Bachmann, T; Schnurr, C; Zainer, L; Rychlik, M or concate me.. SDS of cas: 65-22-5

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem