Brendel, Matthias’s team published research in Journal of Organic Chemistry in 2020-06-19 | 188577-68-6

Journal of Organic Chemistry published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent). 188577-68-6 belongs to class pyridine-derivatives, and the molecular formula is C5H4Cl2N2, Application In Synthesis of 188577-68-6.

Brendel, Matthias; Sakhare, Priyanka R.; Dahiya, Gaurav; Subramanian, Parthasarathi; Kaliappan, Krishna P. published the artcile< Serendipitous Synthesis of Pyridoquinazolinones via an Oxidative C-C Bond Cleavage>, Application In Synthesis of 188577-68-6, the main research area is serendipitous synthesis pyridoquinazolinone oxidative carbon carbon bond cleavage.

A direct one-pot copper-catalyzed oxidative C-C bond cleavage route to the synthesis of pyridoquinazolinones is described. This one-pot strategy involves a copper-catalyzed C-N coupling followed by concomitant C(sp3)-H oxidation and amidation via oxidative C-C bond cleavage under an O2 atmosphere to deliver the target mols. in high yields.

Journal of Organic Chemistry published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent). 188577-68-6 belongs to class pyridine-derivatives, and the molecular formula is C5H4Cl2N2, Application In Synthesis of 188577-68-6.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Longjia’s team published research in Catalysis Communications in 2019-07-05 | 1762-41-0

Catalysis Communications published new progress about Fluorenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 1762-41-0 belongs to class pyridine-derivatives, and the molecular formula is C10H6Cl2N2, Product Details of C10H6Cl2N2.

Li, Longjia; Liu, Zibo; Tang, Shanyu; Li, Jiao; Ren, Xuanhe; Yang, Guanyu; Li, Heng; Yuan, Bingxin published the artcile< Amphiphilic ligands for Cu-catalyzed aerobic oxidation to synthesize 9-fluorenones in water>, Product Details of C10H6Cl2N2, the main research area is fluorenone preparation; fluorene aerobic oxidation copper catalyst.

A series of amphiphilic PEG-functionalized nitrogen ligands were developed for the highly efficient copper-catalyzed aerobic oxidation of 9-fluorenes, with mol. oxygen as the sole oxidant in neat water to afford 9-fluorenones I [R = H, 2-NH2, 2-I, etc.]. A broad range of functional groups were well tolerated and thus offered the opportunity for further functionalization.

Catalysis Communications published new progress about Fluorenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 1762-41-0 belongs to class pyridine-derivatives, and the molecular formula is C10H6Cl2N2, Product Details of C10H6Cl2N2.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Xiao, Xuan’s team published research in Biomaterials in 2021-03-31 | 2127-03-9

Biomaterials published new progress about Antitumor agent resistance. 2127-03-9 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2S2, HPLC of Formula: 2127-03-9.

Xiao, Xuan; Wang, Kewei; Zong, Qingyu; Tu, Yalan; Dong, Yansong; Yuan, Youyong published the artcile< Polyprodrug with glutathione depletion and cascade drug activation for multi-drug resistance reversal>, HPLC of Formula: 2127-03-9, the main research area is polydisulfide prodrug glutathione depletion multidrug resistance reversal; Glutathione response; Multidrug resistance; poly(disulfide).

High intracellular glutathione (GSH) levels play an important role in multidrug resistance (MDR) in cancer cells. It remains challenging to develop a drug delivery system that is simultaneously capable of GSH depletion and drug activation for multidrug resistance reversal. Herein, we designed a polyprodrug (denoted as PSSD) based on poly(disulfide) conjugated with doxorubicin (DOX) on the polymer side chains that exhibits GSH depletion and cascade DOX activation for drug resistance reversal. The poly(disulfide) backbone with a high disulfide d. depletes intracellular antioxidant GSH via the disulfide-thiol exchange reaction to disrupt intracellular redox homeostasis in cells. Simultaneously, DOX can be activated through a cascade reaction, and degradation of the poly(disulfide) backbone further facilitates its drug release. Therefore, poly(disulfide) can be used as a GSH scavenger to reverse MDR as well as a prodrug backbone to target high intracellular GSH levels in cancer cells, providing a general strategy for drug resistance reversal.

Biomaterials published new progress about Antitumor agent resistance. 2127-03-9 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2S2, HPLC of Formula: 2127-03-9.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Allen, Sonia A’s team published research in Mitochondrion in 2020-01-31 | 123-03-5

Mitochondrion published new progress about Brain neoplasm Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 123-03-5 belongs to class pyridine-derivatives, and the molecular formula is C21H38ClN, Name: 1-Hexadecylpyridin-1-ium chloride.

Allen, Sonia A.; Datta, Sandipan; Sandoval, Jose; Tomilov, Alexey; Sears, Thomas; Woolard, Kevin; Angelastro, James M.; Cortopassi, Gino A. published the artcile< Cetylpyridinium chloride is a potent AMP-activated kinase (AMPK) inducer and has therapeutic potential in cancer>, Name: 1-Hexadecylpyridin-1-ium chloride, the main research area is cancer cetylpyridinium chloride AMP activated kinase therapeutics; AMP-activated protein kinase; AMPK; Cancer; Cetylpyridinium chloride; Mitochondrial inhibitor; Quaternary ammonium salt.

AMP-activated protein kinase (AMPK) is a eukaryotic energy sensor and protector from mitochondrial/energetic stress that is also a therapeutic target for cancer and metabolic disease. Metformin is an AMPK inducer that has been used in cancer therapeutic trials. Through screening we isolated cetylpyridinium chloride (CPC), a drug known to dose-dependently inhibit mitochondrial complex 1, as a potent and dose-dependent AMPK stimulator. Mitochondrial biogenesis and bioenergetics changes have also been implicated in glioblastoma, which is the most aggressive form of brain tumors. Cetylpyridinium chloride has been administered in humans as a safe drug-disinfectant for several decades, and we report here that under in vitro conditions, cetylpyridinium chloride kills glioblastoma cells in a dose dependent manner at a higher efficacy compared to current standard of care drug, temozolomide.

Mitochondrion published new progress about Brain neoplasm Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 123-03-5 belongs to class pyridine-derivatives, and the molecular formula is C21H38ClN, Name: 1-Hexadecylpyridin-1-ium chloride.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Zhou, Sen’s team published research in Journal of Organic Chemistry in 2021-05-07 | 2127-03-9

Journal of Organic Chemistry published new progress about One-pot synthesis. 2127-03-9 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2S2, Name: 1,2-Di(pyridin-2-yl)disulfane.

Zhou, Sen; Hou, Xiaoya; Yang, Kai; Guo, Minjie; Zhao, Wentao; Tang, Xiangyang; Wang, Guangwei published the artcile< Direct Synthesis of N-Difluoromethyl-2-pyridones from Pyridines>, Name: 1,2-Di(pyridin-2-yl)disulfane, the main research area is difluoromethylpyridone difluoromethylquinolinone preparation.

A novel method for the synthesis of N-difluoromethyl-2-pyridones was described. This protocol enables the synthesis of N-difluoromethyl-2-pyridones from readily available pyridines using mild reaction conditions that are compatible with a wide range of functional groups. The preliminary mechanistic study revealed that N-difluoromethylpyridinium salts were the key intermediates to complete this conversion.

Journal of Organic Chemistry published new progress about One-pot synthesis. 2127-03-9 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2S2, Name: 1,2-Di(pyridin-2-yl)disulfane.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Shokurov, Alexander V’s team published research in New Journal of Chemistry in 2019 | 3731-53-1

New Journal of Chemistry published new progress about Lattice dynamics. 3731-53-1 belongs to class pyridine-derivatives, and the molecular formula is C6H8N2, Application In Synthesis of 3731-53-1.

Shokurov, Alexander V.; Meshkov, Ivan N.; Bulach, Veronique; Gorbunova, Yulia G.; Hosseini, Mir Wais; Tsivadze, Aslan Yu.; Arslanov, Vladimir V.; Selektor, Sofia L. published the artcile< Restriction of the rotational relaxation of a butadiyne-bridged porphyrin dimer in ultrathin films>, Application In Synthesis of 3731-53-1, the main research area is porphyrin dimer diazabicyclooctane aminomethylpyridine film preparation dynamic behavior UV.

The dynamic behavior of a porphyrin dimer, based on the covalent linkage of two macrocyclic moieties with a butadiyne connector, was studied in thin films by UV-visible and emission spectroscopies. The degree of π-conjugation through control of intramol. motion was studied without employing extreme conditions such as cryogenic temperatures or high viscosity. By exploiting the propensity of the dimer to bind axial ligands through Zn-N bonds, the coplanar and orthogonal conformations of the dimer may be stabilized in ultrathin films at the air/water interface. Also, using the Langmuir-Blodgett technique, monolayer-thick matrix-free films on solid substrates containing the porphyrin dimer were obtained. In the latter case, the dimer exists in either an exclusively coplanar state or a mixture of conformational states depending on the nature of the axial ligand: 1,4-diazabicyclo[2.2.2]-octane (DABCO) or 4-aminomethylpyridine (AMP).

New Journal of Chemistry published new progress about Lattice dynamics. 3731-53-1 belongs to class pyridine-derivatives, and the molecular formula is C6H8N2, Application In Synthesis of 3731-53-1.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Wang, Shengdong’s team published research in ChemSusChem in 2019 | 396092-82-3

ChemSusChem published new progress about Crystal structure. 396092-82-3 belongs to class pyridine-derivatives, and the molecular formula is C7H9BrN2, Safety of 2-Bromo-N,N-dimethylpyridin-4-amine.

Wang, Shengdong; Huang, Haiyun; Roisnel, Thierry; Bruneau, Christian; Fischmeister, Cedric published the artcile< Base-Free Dehydrogenation of Aqueous and Neat Formic Acid with Iridium(III) Cp*(dipyridylamine) Catalysts>, Safety of 2-Bromo-N,N-dimethylpyridin-4-amine, the main research area is preparation crystal structure iridium cyclopentadiynyl dipyridylamine complex; cyclic voltammetry iridium cyclopentadiynyl dipyridylamine complex; Dehydrogenation formic acid iridium cyclopentadiynyl dipyridylamine complex catalyst; N ligands; dehydrogenation; energy conversion; hydrogen; iridium.

The selective dehydrogenation of formic acid by iridium(III) Cp*(dipyridylamine) catalysts is reported. The electron-enriched catalyst [IrIIICp*{(4-dimethylaminopyridin-2-yl-κN)(pyridin-2′-yl-κN)amine}(OSO3)] gave the best performances enabling the base free dehydrogenation of aqueous and neat formic acid. In both cases the reaction was selective with no carbon monoxide detectable. The IrIII complex demonstrated latent behavior, which may be of practical utility. Exptl. results suggest an outer-sphere interaction with the ligand.

ChemSusChem published new progress about Crystal structure. 396092-82-3 belongs to class pyridine-derivatives, and the molecular formula is C7H9BrN2, Safety of 2-Bromo-N,N-dimethylpyridin-4-amine.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Gu, Jin-Zhong’s team published research in Inorganic Chemistry Frontiers in 2021 | 366-18-7

Inorganic Chemistry Frontiers published new progress about Benzaldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 366-18-7 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2, Safety of 2,2′-Bipyridine.

Gu, Jin-Zhong; Wan, Shi-Mao; Dou, Wei; Kirillova, Marina V.; Kirillov, Alexander M. published the artcile< Coordination polymers from an unexplored biphenyl-tricarboxylate linker: hydrothermal synthesis, structural traits and catalytic cyanosilylation>, Safety of 2,2′-Bipyridine, the main research area is coordination polymer biphenyl tricarboxylate linker hydrothermal synthesis catalytic cyanosilylation.

A novel biphenyl-tricarboxylic acid, 3,2′,4′-biphenyl-tricarboxylic acid (H3bta), was used as a versatile linker for preparing a new series of nickel(II), zinc(II), and cadmium(II) coordination polymers (CPs) and complexes, formulated as {[Cd(μ-Hbta)(2,2′-bipy)(H2O)]·3H2O}n (1), {[Ni(μ-Hbta)(4,4′-bipy)(H2O)3]·H2O}n (2), [M2(μ-Hbta)2(4,4′-bipy)2(H2O)2]·2H2O (M = Zn (3) and Cd (4)), {[Cd2(μ4-bta)(μ-Cl)(phen)2]·2H2O}n (5). {[Zn2(μ3-bta)(2,2′-bipy)2(H2O)3][Zn(μ-bta)(2,2′-bipy)(H2O)]·3H2O} (6), {[Cd3(μ4-bta)2(2,2′-bipy)3]·4H2O}n (7), {[Zn3(μ3-bta)2(H2biim)2(μ-H2biim)(H2O)2]·2H2O}n (8), and [Zn3(μ6-bta)2(py)2]n (9). These coordination compounds were hydrothermally assembled from the metal(II) chlorides, H3bta as a principal building block and N-donor ancillary ligands as crystallization mediators (i.e., 2,2′-bipyridine, 2,2′-bipy; 4,4′-bipyridine, 4,4′-bipy; 1,10-phenanthroline, phen; 2,2′-biimidazole, H2biim; or pyridine, py). All the synthesized products 1-9 were characterized by standard solid-state methods including elemental anal., IR spectroscopy, thermogravimetric anal. (TGA), powder X-ray diffraction (PXRD) and single-crystal X-ray diffraction. The structures of 1-9 range from 0D dimers (3 and 4) to 1D coordination polymers (1, 2, 5, and 6) and 2D metal-organic layers (7-9). Such a diversity of structures is explained by the differences in metal(II) centers, deprotonation levels of H3bta, and crystallization mediators. From a topol. perspective, the obtained structures include 2C1 chains (in 1, 2, and 6), pcu H-bonded nets (in 3 and 4), SP 1-periodic nets (in 5), and 4,5L51 (in 7) and hcb (in 8) layers. For compounds 1-9, luminescence properties were also evaluated. Besides, the catalytic behavior of the obtained products was screened in the cyanosilylation of benzaldehydes with trimethylsilyl cyanide to give cyanohydrin products under mild conditions, including an optimization of various reaction parameters and an investigation of the substrate scope. Among the tested compounds, 3 acts as the most efficient and recyclable heterogeneous catalyst with up to 96% product yields. By presenting the unique examples of coordination compounds derived from H3bta, this study introduces its use as a new tricarboxylate linker for assembling functional coordination polymers and metal complexes.

Inorganic Chemistry Frontiers published new progress about Benzaldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 366-18-7 belongs to class pyridine-derivatives, and the molecular formula is C10H8N2, Safety of 2,2′-Bipyridine.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Li, Liang’s team published research in European Journal of Medicinal Chemistry in 2019-07-01 | 131747-55-2

European Journal of Medicinal Chemistry published new progress about Pulmonary hypertension. 131747-55-2 belongs to class pyridine-derivatives, and the molecular formula is C6H6FNO, Application In Synthesis of 131747-55-2.

Li, Liang; Zhang, Wenpeng; Lin, Feng; Lu, Xinqiang; Chen, Wei; Li, Xingzhou; Zhou, Xinbo; Su, Ruibin; Wang, Lili; Zheng, Zhibing; Li, Song published the artcile< Synthesis and biological evaluation of pyrazolo[3,4-b]pyridine-3-yl pyrimidine derivatives as sGC stimulators for the treatment of pulmonary hypertension>, Application In Synthesis of 131747-55-2, the main research area is pyrazolopyridinyl pyrimidine preparation sGC stimulator; Pulmonary hypertension; Riociguat; pyrazolo[3,4-b]pyridine-3-yl pyrimidine derivatives; sGC stimulators.

A series of new pyrazolo[3,4-b]pyridin-3-yl pyrimidine derivatives I [R = 2-thiophenyl, 3-fluorothiophen-2-yl, 5-methylpyridin-3-yl; R1 = Me, Et, i-Pr; R2 = Me, Et] were synthesized and evaluated for the activation of sGC. Compared with riociguat, compound I [R = 3-fluorothiophen-2-yl; R1 = R2 = Me] exhibited equivalent in vitro activity on preconstricted rat thoracic aorta rings and in Rat heart Langendorff preparation Compound I [R = 3-fluorothiophen-2-yl; R1 = R2 = Me] also showed acceptable PK profiles, which might become a promising candidate for the treatment of pulmonary hypertension.

European Journal of Medicinal Chemistry published new progress about Pulmonary hypertension. 131747-55-2 belongs to class pyridine-derivatives, and the molecular formula is C6H6FNO, Application In Synthesis of 131747-55-2.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Ho, Dang Binh’s team published research in Journal of Organic Chemistry in 2022-02-18 | 350-03-8

Journal of Organic Chemistry published new progress about Amides Role: RCT (Reactant), RACT (Reactant or Reagent) (allenamides). 350-03-8 belongs to class pyridine-derivatives, and the molecular formula is C7H7NO, Formula: C7H7NO.

Ho, Dang Binh; Gargaro, Samantha; Klake, Raphael K.; Sieber, Joshua D. published the artcile< Development of a Modified System to Provide Improved Diastereocontrol in the Linear-Selective Cu-Catalyzed Reductive Coupling of Ketones and Allenamides>, Formula: C7H7NO, the main research area is chiral gamma lactone preparation; ketone allenamide reductive coupling linear selective copper.

Chiral γ-lactones are prevalent organic architectures found in a large array of natural products. In this work, authors disclose the development of a modified catalytic system utilizing a com. available Cu-phosphite catalyst for the diastereoselective reductive coupling of chiral allenamides and ketones to afford chiral γ-lactone precursors in 80:20 to 99:1 dr.

Journal of Organic Chemistry published new progress about Amides Role: RCT (Reactant), RACT (Reactant or Reagent) (allenamides). 350-03-8 belongs to class pyridine-derivatives, and the molecular formula is C7H7NO, Formula: C7H7NO.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem