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Journal articles on the topic 'N-(pyridin-4-yl)pyridin-4-amine'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Bussey, Katherine A., Annie R. Cavalier, Jennifer R. Connell, et al. "Structural studies of (prop-2-en-1-yl)bis[(pyridin-2-yl)methylidene]amine hetero-scorpionate copper complexes." Acta Crystallographica Section C Structural Chemistry 71, no. 7 (2015): 526–33. http://dx.doi.org/10.1107/s2053229615010335.

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The structures of five compounds consisting of (prop-2-en-1-yl)bis[(pyridin-2-yl)methylidene]amine complexed with copper in both the CuIand CuIIoxidation states are presented, namely chlorido{(prop-2-en-1-yl)bis[(pyridin-2-yl)methylidene]amine-κ3N,N′,N′′}copper(I) 0.18-hydrate, [CuCl(C15H17N3)]·0.18H2O, (1),catena-poly[[copper(I)-μ2-(prop-2-en-1-yl)bis[(pyridin-2-yl)methylidene]amine-κ5N,N′,N′′:C2,C3] perchlorate acetonitrile monosolvate], {[Cu(C15H17N3)]ClO4·CH3CN}n, (2), dichlorido{(prop-2-en-1-yl)bis[(pyridin-2-yl)methylidene]amine-κ3N,N′,N′′}copper(II) dichloromethane monosolvate, [CuCl2(C

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2

Reddy, B. Siva, and K. R. S. Prasad. "Design, Synthesis and Antibacterial Activity of N-(3-((4-(6-(2,2,2- Trifluoroethoxy)pyridin-3-yl)-1H-imidazol-2-yl)methyl)oxetan-3-yl)amide Derivatives." Asian Journal of Chemistry 33, no. 3 (2021): 577–82. http://dx.doi.org/10.14233/ajchem.2021.23039.

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A new series of N-(3-((4-(6-(2,2,2-trifluoroethoxy)pyridin-3-yl)-1H-imidazol-2-yl)methyl)oxetan-3- yl)amide derivatives (10a-h)were synthesized by the reaction of 3-((4-(6-(2,2,2-trifluoroethoxy)pyridin- 3-yl)-1H-imidazol-2-yl)methyl)oxetan-3-amine (8) with various carboxylic acids in the presence of T3P catalyst. The reaction is usually furnished within 60 min with good isolated yields. Coupling of 6-(2,2,2-trifluoroethoxy) nicotinic acid (1) with Weinreb amine hydrochloride gave N-methoxy-Nmethyl- 6-(2,2,2-trifluoroethoxy) nicotinamide (2). Compound 3 was synthesized by the Grignard reaction

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3

Böck, Denise, Andreas Beuchel, Richard Goddard, Adrian Richter, Peter Imming, and Rüdiger W. Seidel. "Protonation sites and hydrogen bonding in mono-hydrobromide salts of two N,4-diheteroaryl 2-aminothiazoles." Structural Chemistry 32, no. 3 (2021): 989–96. http://dx.doi.org/10.1007/s11224-021-01730-0.

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AbstractThe synthesis and structural characterization of N-(6-methoxypyridin-3-yl)-4-(pyridin-2-yl)thiazol-2-amine mono-hydrobromide monohydrate (3) and N-(6-methoxypyridin-3-yl)-4-(pyrazin-2-yl)thiazol-2-amine mono-hydrobromide 0.35 methanol solvate (4) are reported. The crystal structures of 3 (monoclinic, space group P21/n, Z = 4) and 4 (monoclinic, space group, C2/c, Z = 8) feature N,4-diheteroaryl 2-aminothiazoles showing similar molecular conformations but different sites of protonation and thus distinctly different intermolecular hydrogen bonding patterns. In 3, Namine–H⋯Br−, N+pyridine

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4

Unjaroen, Duenpen, Johann B. Kasper, and W. R. Browne. "Reversible photochromic switching in a Ru(ii) polypyridyl complex." Dalton Trans. 43, no. 45 (2014): 16974–76. http://dx.doi.org/10.1039/c4dt02430c.

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Fully reversible photoswitching of the coordination mode of the ligand MeN<sub>4</sub>Py (1,1-di(pyridin-2-yl)-N,N′-bis(pyridin-2-yl-methyl)-ethan-1-amine) in its ruthenium(ii) complex with visible light is reported.

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5

Guo, Huixia, Xiaohua Xi, Renxiang Yan та Xiaoquan Lu. "Theoretical study on the effect of different π-linker on the performance of sensitizer in carbazole-based dyes". Journal of Theoretical and Computational Chemistry 17, № 02 (2018): 1850019. http://dx.doi.org/10.1142/s0219633618500190.

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Derived from diarylamine sensitizer diphenyl-(7-pyridin-4-yl-9H-carbazol-2-yl)-amine (N13), a series of novel D[Formula: see text]A carbazole-based organic dye sensitizers with different [Formula: see text]-linkers were designed for searching more effective sensitizers in dye-sensitized solar cells (DSSCs) design. Optimized geometries, electronic structure, and other parameters, which can evaluate the performance of DSSCs effectively and intuitively, were theoretically calculated by density functional theory (DFT) and time-dependent DFT methods at the M06/6-31G(d,p) level. The results indicate

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6

Kansagara, N. N., V. R. Dangar, and V. R. Shah. "Synthesis, Characterization and Antimicrobial Evaluation of Schiff’s Base and Aryl Aminomethyl Derivatives." International Letters of Chemistry, Physics and Astronomy 64 (February 2016): 89–94. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.64.89.

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Schiff’s bases are obtained on heating an aldehydes with aromatic amine in presence of glacial acetic acid. These are the compounds containing characteristic –HC=N– group. Aryl amino methyl derivatives of heterocyclic compounds to synthesize by selective reduction of schiff’s bases (imine group) with sodiumborohydride in controlled experimental condition. Schiff’s base of N-Aryl-1-[6-methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]methanimines & Aryl amines of N-Aryl-1-[6-methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]methanamines were prepared. Their chemical structures were conf

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7

Padilha, Diego da S., Adailton J. Bortoluzzi, and Marciela Scarpellini. "An unusual partial occupancy of labile chloride and aqua ligands in cocrystallized isomers of a nickel(II) complex bearing a tripodal N 4-donor ligand." Acta Crystallographica Section C Structural Chemistry 76, no. 1 (2020): 17–22. http://dx.doi.org/10.1107/s2053229619015705.

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A novel Ni2+ complex with the N 4-donor tripodal ligand bis[(1-methyl-1H-imidazol-2-yl)methyl][2-(pyridin-2-yl)ethyl]amine (L), namely, aqua{bis[(1-methyl-1H-imidazol-2-yl-κN 3)methyl][2-(pyridin-2-yl-κN)ethyl]amine-κN}chloridonickel(II) perchlorate, [NiCl(C17H22N6)(H2O)]ClO4 or [NiCl(H2O)(L)Cl]ClO4 (1), was synthesized and characterized by spectroscopic and spectrometric methods. The crystal structure of 1 reveals an interesting and unusual cocrystallization of isomeric complexes, which are crystallographically disordered with partial occupancy of the labile cis aqua and chloride ligands. The

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8

Wolińska, Ewa. "Chiral oxazoline ligands with two different six-membered azaheteroaromatic rings – synthesis and application in the Cu-catalyzed nitroaldol reaction." Heterocyclic Communications 22, no. 2 (2016): 85–94. http://dx.doi.org/10.1515/hc-2016-0001.

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AbstractSynthesis and catalytic activity of chiral ligands 5,6-diphenyl-3-{3-[(4S/R)-4-R/Ar-4,5-dihydro-1,3-oxazol-2-yl]pyridin-2-yl}amino-1,2,4-triazines 2 and their analogs 3 possessing an N-oxide function in the pyridine ring are described. The pivotal step in the synthesis of ligands 2 is the Buchwald-Hartwig Pd-catalyzed cross-coupling reaction between 3-bromo-5,6-diphenyl-1,2,4-triazine (7a) and enantiopure 3-(4,5-dihydro-1,3-oxazol-2-yl)pyridin-2-amines 6a–d. Aromatic nucleophilic substitution of chlorine in 3-chloro-5,6-diphenyl-1,2,4-triazine (7b) with 3-(4,5-dihydro-1,3-oxazol-2-yl)p

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9

Jyotindra B, Mahyavanshi, Parmar Kokila A, and Mahato Anil K. "Synthesis, Structural Elucidation and Anti Microbial Screening of N-(4-aryl amine)-2-{[4-phenyl-5- (pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide Derivatives." Indian Journal of Applied Research 4, no. 1 (2011): 91–94. http://dx.doi.org/10.15373/2249555x/jan2014/27.

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10

Jiang, Quan-Fu, and Chun-Xiong Lu. "N-{2-[4-(2-Methoxyphenyl)piperazin-1-yl]ethyl}pyridin-2-amine monohydrate." Acta Crystallographica Section E Structure Reports Online 66, no. 7 (2010): o1727. http://dx.doi.org/10.1107/s1600536810022816.

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11

Woo, Jeongkyu, Soo Kyung Kang, Ju Hee Han, et al. "Red Phosphorescent Platinum(II) Complexes with Tetradentate Pyridine-Containing Ligands for Organic Light Emitting Diodes." Journal of Nanoscience and Nanotechnology 20, no. 11 (2020): 6669–74. http://dx.doi.org/10.1166/jnn.2020.18758.

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Here, red phosphorescent platinum(II) complexes based on tetradentate pyridine-containing lig-ands are studied. To investigate their electroluminescent properties, multilayer devices were fabricated in the following sequence; ITO (180 nm)/4,4′,4″-Tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA) (30 nm)/N, N′-di(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl)4,4′-diamine (NPB) (20 nm)/ Tris(4-carbazoyl-9-ylphenyl)amine (TCTA) (10 nm)/4,4′-Bis(N-carbazolyl)-1,1′-biphenyl (CBP) (20 nm)/Platinum(II) complex (20 nm)/1,3,5-Tris(1-Phenyl-1H-benzimidazol-2-yl)benzene) (TPBi) (40 nm)/Liq (2 nm)/Al (100 n

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12

Bernardino, Alice M. R., Luiz C. S. Pinheiro, Edward R. T. Tiekink, James L. Wardell, and Solange M. S. V. Wardell. "N-(4-Chlorophenyl)-5-(4,5-dihydro-1H-imidazol-2-yl)thieno[2,3-b]pyridin-4-amine." Acta Crystallographica Section E Structure Reports Online 68, no. 7 (2012): o2135—o2136. http://dx.doi.org/10.1107/s160053681202658x.

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13

Wu, Xiang-Wen, Shi Yin, Wan-Fu Wu, and Jian-Ping Ma. "Synthesis and characterization of two novel bimetallic macrocyclic complexes generated from 1,2,4-triazole-containing semi-rigid ligands andM(NO3)2units (M= Ni and Zn)." Acta Crystallographica Section C Structural Chemistry 72, no. 4 (2016): 285–90. http://dx.doi.org/10.1107/s205322961600348x.

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Bimetallic macrocyclic complexes have attracted the attention of chemists and various organic ligands have been used as molecular building blocks, but supramolecular complexes based on semi-rigid organic ligands containing 1,2,4-triazole have remained rare until recently. It is easier to obtain novel topologies by making use of asymmetric semi-rigid ligands in the self-assembly process than by making use of rigid ligands. A new semi-rigid ligand, 3-[(pyridin-4-ylmethyl)sulfanyl]-5-(quinolin-2-yl)-4H-1,2,4-triazol-4-amine (L), has been synthesized and used to generate two novel bimetallic macro

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14

Kubík, Richard, Stanislav Böhm, Jan Čejka, et al. "Sterically Crowded Heterocycles. VIII. Preparative Photoisomerization of Some Imidazo[1,2-a]pyridines." Collection of Czechoslovak Chemical Communications 61, no. 10 (1996): 1473–88. http://dx.doi.org/10.1135/cccc19961473.

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UV-Illumination of (Z)-3-(2-phenylimidazo[1,2-a]pyridin-3-yl)-1,3-diphenylprop-2-en-1-one (1a) or its 6-methyl and 6-iodo derivatives 1c and 1g resulted in minor (E)-isomers 2a, 2c, and 2g and prevailing (E,Z)-mixtures of N-(pyridin-2-yl)-[(3,5-diphenylfuran-2-yl)phenylmethylidene]amines 3a, 3c, and 3g while only corresponding furanoic derivatives 3b and 3d-3f were obtained from 5-methyl (1b), 7-methyl (1d), 8-methyl (1e), and 5-phenyl (1f) derivatives of the (Z)-ketone 1a. VIS-Illumination of (Z)-1,3-diphenyl-3-(2-phenylimidazo[1,2-a]benzo[I]quinolin-3-yl)prop-2-en-1-one (4) led to N-(benzo[h

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15

Yamaguchi-Terasaki, Yukiko, Takashi Fujihara, Akira Nagasawa, and Sumio Kaizaki. "Crystal structure offac-trichlorido[tris(pyridin-2-yl-N)amine]chromium(III)." Acta Crystallographica Section E Crystallographic Communications 71, no. 1 (2015): 73–75. http://dx.doi.org/10.1107/s2056989014027066.

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In the neutral complex molecule of the title compound,fac-[CrCl3(tpa)] [tpa is tris(pyridin-2-yl)amine; C15H12N4], the CrIIIion is bonded to three N atoms that are constrained to afacialarrangement by the tpa ligand and by three chloride ligands, leading to a distorted octahedral coordination sphere. The average Cr—N and Cr—Cl bond lengths are 2.086 (5) and 2.296 (4) Å, respectively. The complex molecule is located on a mirror plane. In the crystal, a combination of C—H...N and C—H...Cl hydrogen-bonding interactions connect the molecules into a three-dimensional network.

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16

Liu, Yuan-Yuan, Pan Yang та Bin Ding. "Diaquabis(thiocyanato-κN)bis[6-(4H-1,2,4-triazol-4-yl-κN1)pyridin-2-amine]cadmium". Acta Crystallographica Section E Structure Reports Online 68, № 8 (2012): m1095—m1096. http://dx.doi.org/10.1107/s1600536812032473.

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In the title compound, [Cd(NCS)2(C7H7N5)2(H2O)2], the CdIIcation lies on an inversion center and is coordinated by the N atoms of two thiocyanate anions, by N atoms of two 6-(4H-1,2,4-triazol-4-yl)pyridin-2-amine ligands and by the O atoms of two water molecules in a distorted N4O2octahedral geometry. The dihedral angle between the triazole and pyridine rings is 23.15 (12)°. In the crystal, molecules are linked by N—H...N and O—H...S hydrogen bonds. Offset π–π stacking between parallel pyridine rings of adjacent molecules is also observed, the centroid–centroid distance being 3.6319 (14) Å.

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17

Parashchenko, Yuliia, Anna Pavlishchuk, Nadezhda A. Bokach та Matti Haukka. "Tetrakis[bis(pyridin-2-yl)amine-κN2](nitrato-κO)silver(I)". Acta Crystallographica Section E Structure Reports Online 70, № 2 (2014): m58—m59. http://dx.doi.org/10.1107/s1600536814000907.

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In the title complex, [Ag(NO3)(C10H9N3)4], the nitrate ligand is found to be disordered over two sets of positions, with occupancy factors of 0.473 (5) and 0.527 (5). The AgIion is located in a square-pyramidal coordination environment formed by four N atoms from four bis(pyridin-2-yl)amine ligands and one O atom from a nitrate ligand. Weak interactions between the AgIions and the nitrate anions acting in a monodentate mode [Ag...O = 2.791 (13) and 2.816 (9) Å for the major component of the nitrate ligand, and 2.865 (8) and 2.837 (8) Å for the minor component] link the complex molecules into a

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18

Craig, Donald C., Marcia L. Scudder, Wendy-Anne McHale, and Harold A. Goodwin. "Structural Studies of Complexes of Tridentate Terimine Systems. Crystal Structure of Bis(2,2′:6′,2′′-terpyridine)ruthenium(II) Perchlorate Hydrate, Bis(2,2′:6′,2′′-terpyridine)- osmium(II) Perchlorate Hemihydrate and Bis((1,10-phenanthrolin-2-yl)(pyridin-2-yl)amine)iron(II) Tetrafluoroborate Dihydrate." Australian Journal of Chemistry 51, no. 12 (1998): 1131. http://dx.doi.org/10.1071/c98118.

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The crystal structures of bis(2,2′:6′,2″-terpyridine)ruthenium(II) perchlorate hydrate, bis(2,2′:6′,2″- terpyridine)osmium(II) perchlorate hemihydrate and bis((1,10-phenanthrolin-2-yl)(pyridin-2-yl)- amine)iron(II) tetrafluoroborate dihydrate are described. In the terpyridine complexes the ruthenium-nitrogen distances and the corresponding osmium-nitrogen distances are not significantly different. In both complexes the ligand geometry and the metal ion environment show the distortions usual for bis(terpyridine) systems. Distortions are less marked in the bis((1,10-phenanthrolin-2-yl)(pyridin-2

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19

Melekhina, Valeriya G., Andrey N. Komogortsev, Boris V. Lichitsky, et al. "One-pot synthesis of substituted pyrrolo[3,4-b]pyridine-4,5-diones based on the reaction of N-(1-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-2-oxo-2-arylethyl)acetamide with amines." Beilstein Journal of Organic Chemistry 15 (November 25, 2019): 2840–46. http://dx.doi.org/10.3762/bjoc.15.277.

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The condensation of primary amines with N-(1-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-2-oxo-2-arylethyl)acetamides was explored. Thus, a previously unknown recyclization of the starting material was observed in acidic ethanol in the presence of an amine, which provided the corresponding dihydropyrrolone derivative as the major reaction product. Based on this transformation, a practical and convenient one-pot synthetic method for substituted pyrrolo[3,4-b]pyridin-5-ones could be devised.

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20

Pfaffenrot, Ellen, Dieter Schollmeyer, and Stefan Laufer. "N-[(3RS,4SR)-1-Benzyl-4-methylpiperidin-3-yl]-1-(4-methylphenylsulfonyl)-5-nitro-1H-pyrrolo[2,3-b]pyridin-4-amine." Acta Crystallographica Section E Structure Reports Online 68, no. 10 (2012): o3000. http://dx.doi.org/10.1107/s160053681203961x.

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21

Mitchell, Lauren A., and Bradley J. Holliday. "6-Bromo-N-(6-bromopyridin-2-yl)-N-[4-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)phenyl]pyridin-2-amine." Acta Crystallographica Section E Structure Reports Online 70, no. 7 (2014): o797. http://dx.doi.org/10.1107/s1600536814013191.

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In the title molecule, C22H15Br2N3O2S, the central benzene ring forms dihedral angles of 12.39 (17), 56.66 (17) and 74.71 (19)°, respectively, with the mean planes of the thiophene and two pyridine rings. The dioxane ring is in a half-chair conformation. An intramolecular C—H...O hydrogen forms anS(6) ring. The amine N atom issp2-hybridized.

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22

Kang, Soo Kyung, Jeongkyu Woo, Ju Hee Han, et al. "Platinum (II) Complexes Based on Tetradentate Pyridine-Containing Ligands for Phosphorescent Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 20, no. 11 (2020): 6683–87. http://dx.doi.org/10.1166/jnn.2020.18774.

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In this study, we designed and synthesized two phosphorescent emitting materials based on tetradentate pyridine-containing ligands. Their photophysical properties were examined for OLEDs and multilayer devices using these materials were fabricated in the following sequence; ITO (180 nm)/4,4′,4″-Tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA) (30 nm)/N,N′-di(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl)4,4′-diamine (NPB) (20 nm)/Tris(4-carbazoyl-9-ylphenyl)amine (TCTA) (10 nm)/4,4′-Bis(N-carbazolyl)-1,1′-biphenyl(CBP): 5, 8, 15% Platinum (II) complexes (20 nm)/1,3,5-Tris(1-Phenyl-1H-benzimidaz

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23

Abdel-Rahman, Adel A. H., Amira K. F. Shaban, Ibrahim F. Nassar, et al. "Discovery of New Pyrazolopyridine, Furopyridine, and Pyridine Derivatives as CDK2 Inhibitors: Design, Synthesis, Docking Studies, and Anti-Proliferative Activity." Molecules 26, no. 13 (2021): 3923. http://dx.doi.org/10.3390/molecules26133923.

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New pyridine, pyrazoloyridine, and furopyridine derivatives substituted with naphthyl and thienyl moieties were designed and synthesized starting from 6-(naphthalen-2-yl)-2-oxo-4-(thiophen-2-yl)-1,2-dihydropyridine-3-carbonitrile (1). The chloro, methoxy, cholroacetoxy, imidazolyl, azide, and arylamino derivatives were prepared to obtain the pyridine-‑C2 functionalized derivatives. The derived pyrazolpyridine-N-glycosides were synthesized via heterocyclization of the C2-thioxopyridine derivative followed by glycosylation using glucose and galactose. The furopyridine derivative 14 and the tricy

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24

Mukiza, Janvier, Thomas I. A. Gerber, Eric C. Hosten, and Richard Betz. "Crystal structure of tricarbonyl-chlorido-(N-(pyridin-2-yl)-N-((4-tertbutyl) benzoyl)pyridine-2-amine)rhenium(I), C24H21ClN3O4Re." Zeitschrift für Kristallographie - New Crystal Structures 230, no. 1 (2015): 44–46. http://dx.doi.org/10.1515/ncrs-2014-9029.

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25

TAYADE, DIPAK, Rahim Shekar, and Rahim Shekar. "A Novel Synthesis and Antimicrobial Studies of 3-(4-Substitutedthiocarbamidophenyl)-N, N-dimethyl-3-Pyridin-2-yl-propan-1-amine." Oriental Journal Of Chemistry 28, no. 1 (2012): 409–12. http://dx.doi.org/10.13005/ojc/280152.

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26

Kovář, Petr, Jakub Škoda, Miroslav Pospíšil, et al. "How N-(pyridin-4-yl)pyridin-4-amine and its methyl and nitro derivatives are arranged in the interlayer space of zirconium sulfophenylphosphonate: a problem solved by experimental and calculation methods." Journal of Computer-Aided Molecular Design 34, no. 6 (2020): 683–95. http://dx.doi.org/10.1007/s10822-020-00299-w.

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27

Finlay, Heather J., James A. Johnson, John L. Lloyd, et al. "Discovery of 5-Phenyl-N-(pyridin-2-ylmethyl)-2-(pyrimidin-5-yl)quinazolin-4-amine as a Potent IKur Inhibitor." ACS Medicinal Chemistry Letters 7, no. 9 (2016): 831–34. http://dx.doi.org/10.1021/acsmedchemlett.6b00117.

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28

Gzella, Andrzej K., Marcin Kowiel, Aneta Suseł, Magdalena N. Wojtyra, and Roman Lesyk. "Heterocyclic tautomerism: reassignment of two crystal structures of 2-amino-1,3-thiazolidin-4-one derivatives." Acta Crystallographica Section C Structural Chemistry 70, no. 8 (2014): 812–16. http://dx.doi.org/10.1107/s2053229614015162.

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The structures of 5-(2-hydroxyethyl)-2-[(pyridin-2-yl)amino]-1,3-thiazolidin-4-one, C10H11N3O2S, (I), and ethyl 4-[(4-oxo-1,3-thiazolidin-2-yl)amino]benzoate, C12H12N2O3S, (II), which are identical to the entries with refcodes GACXOZ [Váňaet al.(2009).J. Heterocycl. Chem.46, 635–639] and HEGLUC [Behbehani & Ibrahim (2012).Molecules,17, 6362–6385], respectively, in the Cambridge Structural Database [Allen (2002).Acta Cryst.B58, 380–388], have been redetermined at 130 K. This structural study shows that both investigated compounds exist in their crystal structures as the tautomer with the ca

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29

Zuo, Yuxiang, Jie Yang, Cheng Chen, Yun-Shan Xue, and Jun Zhang. "Assembly of two novel coordination polymers by selecting ditopic or chelating auxiliary ligands with naphthalene-2,6-dicarboxylic acid: synthesis, structure and luminescence sensing." Acta Crystallographica Section C Structural Chemistry 76, no. 12 (2020): 1076–84. http://dx.doi.org/10.1107/s2053229620015260.

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The FeIII ion as a ubiquitous metal plays a key role in biochemical processes. Iron deficiency or excess in the human body can induce various diseases. Thus, effective detection of the FeIII ion has been deemed an issue of focus. To develop more crystalline chemical sensors for the selective detection of Fe3+, two novel two-dimensional (2D) coordination polymers, namely, poly[[[μ-bis(pyridin-4-yl)amine-κ2 N:N′](μ-naphthalene-2,6-dicarboxylato-κ2 O 2:O 6)zinc(II)] 0.5-hydrate], {[Zn(C12H6O4)(C10H9N3)]·0.5H2O} n , 1, and poly[(4,4′-dimethyl-2,2′-bipyridine-κ2 N,N′)(μ-naphthalene-2,6-dicarboxylat

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30

Kose, Etem, Ahmet Atac, Mehmet Karabacak, Caglar Karaca, Mustafa Eskici, and Abdullah Karanfil. "Synthesis, spectroscopic characterization and quantum chemical computational studies of (S)-N-benzyl-1-phenyl-5-(pyridin-2-yl)-pent-4-yn-2-amine." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 97 (November 2012): 435–48. http://dx.doi.org/10.1016/j.saa.2012.06.041.

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Zheng, Jiyue, Zhaohui Yang, Xuan Li, et al. "Optimization of 6-Heterocyclic-2-(1H-pyrazol-1-yl)-N-(pyridin-2-yl)pyrimidin-4-amine as Potent Adenosine A2AReceptor Antagonists for the Treatment of Parkinson’s Disease." ACS Chemical Neuroscience 5, no. 8 (2014): 674–82. http://dx.doi.org/10.1021/cn5000716.

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32

Kashiwagi, Yukiyasu, Koji Kubono та Toshiyuki Tamai. "Crystal structure of catena-poly[[[bis(3-oxo-1,3-diphenylprop-1-enolato-κ2 O,O′)zinc(II)]-μ2-tris[4-(pyridin-3-yl)phenyl]amine-κ2 N:N′] tetrahydrofuran monosolvate]". Acta Crystallographica Section E Crystallographic Communications 75, № 10 (2019): 1432–35. http://dx.doi.org/10.1107/s2056989019012350.

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The reaction of bis(3-oxo-1,3-diphenylprop-1-enolato-κ2 O,O′)zinc(II), [Zn(dbm)2], with tris[4-(pyridin-3-yl)phenyl]amine (T3PyA) in tetrahydrofuran (THF) afforded the title crystalline coordination polymer, {[Zn(C15H11O2)2(C33H24N4)]·C4H8O} n . The asymmetric unit contains two independent halves of Zn(dbm)2, one T3PyA and one THF. Each ZnII atom is located on an inversion centre and adopts an elongated octahedral coordination geometry, ligated by four O atoms of two dbm ligands in equatorial positions and by two N atoms of pyridine moieties from two different bridging T3PyA ligands in axial p

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Vidal, Bernat, Arsenio Nueda, Cristina Esteve, et al. "Discovery and Characterization of 4‘-(2-Furyl)-N-pyridin-3-yl-4,5‘-bipyrimidin-2‘-amine (LAS38096), a Potent, Selective, and Efficacious A2BAdenosine Receptor Antagonist." Journal of Medicinal Chemistry 50, no. 11 (2007): 2732–36. http://dx.doi.org/10.1021/jm061333v.

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34

Nagy, Sándor, András Ozsváth, Attila Cs Bényei, Etelka Farkas, and Péter Buglyó. "Donor Atom Preference of Organoruthenium and Organorhodium Cations on the Interaction with Novel Ambidentate (N,N) and (O,O) Chelating Ligands in Aqueous Solution." Molecules 26, no. 12 (2021): 3586. http://dx.doi.org/10.3390/molecules26123586.

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Two novel, pyridinone-based chelating ligands containing separated (O,O) and (Namino,Nhet) chelating sets (Namino = secondary amine; Nhet = pyrrole N for H(L3) (1-(3-(((1H-pyrrole-2-yl)methyl)-amino)propyl)-3-hydroxy-2-methylpyridin-4(1H)-one) or pyridine N for H(L5) (3-hydroxy-2-methyl-1-(3-((pyridin-2-ylmethyl)amino)propyl)pyridin-4(1H)-one)) were synthesized via reduction of the appropriate imines. Their proton dissociation processes were explored, and the molecular structures of two synthons were assessed by X-ray crystallography. These ambidentate chelating ligands are intended to develop

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35

Asif, M. "A review on antitubercular activity of some 2-isonicotinoylhydrazinecarboxamide, 5-(pyridin-4-yl)-1,3,4-oxadiazol-2-amine, N'-(E)-heteroaromatic-isonicotino-hydrazide and 1-(7-chloroquinolin-4-yl)-2-(heteroaromatic) methylene hydrazone derivatives." Pakistan Journal of Chemistry 4, no. 3 (2014): 132–41. http://dx.doi.org/10.15228/2014.v04.i03.p06.

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36

van der Schaar, Hilde M., Pieter Leyssen, Hendrik J. Thibaut та ін. "A Novel, Broad-Spectrum Inhibitor of Enterovirus Replication That Targets Host Cell Factor Phosphatidylinositol 4-Kinase IIIβ". Antimicrobial Agents and Chemotherapy 57, № 10 (2013): 4971–81. http://dx.doi.org/10.1128/aac.01175-13.

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ABSTRACTDespite their high clinical and socioeconomic impacts, there is currently no approved antiviral therapy for the prophylaxis or treatment of enterovirus infections. Here we report on a novel inhibitor of enterovirus replication, compound 1, 2-fluoro-4-(2-methyl-8-(3-(methylsulfonyl)benzylamino)imidazo[1,2-a]pyrazin-3-yl)phenol. This compound exhibited a broad spectrum of antiviral activity, as it inhibited all tested species of enteroviruses and rhinoviruses, with 50% effective concentrations ranging between 4 and 71 nM. After a lengthy resistance selection process, coxsackievirus mutan

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Geuns-Meyer, Stephanie, Victor J. Cee, Holly L. Deak, et al. "Discovery of N-(4-(3-(2-Aminopyrimidin-4-yl)pyridin-2-yloxy)phenyl)-4-(4-methylthiophen-2-yl)phthalazin-1-amine (AMG 900), A Highly Selective, Orally Bioavailable Inhibitor of Aurora Kinases with Activity against Multidrug-Resistant Cancer Cell Lines." Journal of Medicinal Chemistry 58, no. 13 (2015): 5189–207. http://dx.doi.org/10.1021/acs.jmedchem.5b00183.

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Mathew, Bini, Pedro Ruiz, Shilpa Dutta та ін. "Structure-activity relationship (SAR) studies of N-(3-methylpyridin-2-yl)-4-(pyridin-2-yl)thiazol-2-amine (SRI-22819) as NF-ҡB activators for the treatment of ALS". European Journal of Medicinal Chemistry 210 (січень 2021): 112952. http://dx.doi.org/10.1016/j.ejmech.2020.112952.

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Tadesse, Solomon, Mingfeng Yu, Laychiluh B. Mekonnen, et al. "Highly Potent, Selective, and Orally Bioavailable 4-Thiazol-N-(pyridin-2-yl)pyrimidin-2-amine Cyclin-Dependent Kinases 4 and 6 Inhibitors as Anticancer Drug Candidates: Design, Synthesis, and Evaluation." Journal of Medicinal Chemistry 60, no. 5 (2017): 1892–915. http://dx.doi.org/10.1021/acs.jmedchem.6b01670.

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Davis, T. Gregg, John J. Peterson, Jen-Pyng Kou, et al. "The Identification of a Novel Phosphodiesterase 4 Inhibitor, 1-Ethyl-5-{5-[(4-methyl-1-piperazinyl)methyl]-1,3,4-oxadiazol-2-yl}-N-(tetrahydro-2H-pyran-4-yl)-1H-pyrazolo[3,4-b]pyridin-4-amine (EPPA-1), with Improved Therapeutic Index using Pica Feeding in Rats as a Measure of Emetogenicity." Journal of Pharmacology and Experimental Therapeutics 330, no. 3 (2009): 922–31. http://dx.doi.org/10.1124/jpet.109.152454.

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Finch, Ann R., Christopher J. Caunt, Stephen P. Armstrong, and Craig A. McArdle. "Plasma Membrane Expression of Gonadotropin-Releasing Hormone Receptors: Regulation by Peptide and Nonpeptide Antagonists." Molecular Endocrinology 24, no. 2 (2010): 423–35. http://dx.doi.org/10.1210/me.2009-0343.

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Abstract Gonadotropin-releasing hormone acts via cell surface receptors but most human (h) GnRH receptors (GnRHRs) are intracellular. A membrane-permeant nonpeptide antagonist [(2S)-2-[5-[2-(2-axabicyclo[2.2.2]oct-2-yl)-1,1-dimethy-2-oxoethyl]-2-(3,5-dimethylphenyl)-1H-indol-3-yl]-N-(2-pyridin-4-ylethyl)propan-1-amine (IN3)] increases hGnRHR expression at the surface, apparently by facilitating its exit from the endoplasmic reticulum. Here we have quantified GnRHR by automated imaging in HeLa cells transduced with adenovirus expressing hemagglutinin-tagged GnRHR. Consistent with an intracellul

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Johnson, Benjamin M., Amrita V. Kamath, John E. Leet, et al. "Metabolism of 5-Isopropyl-6-(5-methyl-1,3,4-oxadiazol-2-yl)-N-(2-methyl-1H-pyrrolo[2,3-b]pyridin-5-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amine (BMS-645737): Identification of an Unusual N-Acetylglucosamine Conjugate in the Cynomolgus Monkey." Drug Metabolism and Disposition 36, no. 12 (2008): 2475–83. http://dx.doi.org/10.1124/dmd.108.022624.

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43

Moreno-Fuquen, Rodolfo, Kevin Arango-Daraviña, Esteban Garcia, Juan-C. Tenorio, and Javier Ellena. "Synthesis, spectroscopic (FT–IR and UV–Vis), crystallographic and theoretical studies, and a molecular docking simulation of an imatinib-like template." Acta Crystallographica Section C Structural Chemistry 75, no. 12 (2019): 1681–89. http://dx.doi.org/10.1107/s2053229619015523.

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The aim of the present study was to report the crystal structure and spectroscopic, electronic, supramolecular and electrostatic properties of a new polymorph of 4-(pyridin-2-yl)pyrimidin-2-amine (C9H8N4). The compound was synthesized under microwave irradiation. The single-crystal X-ray structure analysis revealed an angle of 13.36 (8)° between the planes of the rings, as well as molecules linked by Nsp 2—H...N hydrogen bonds forming dimers along the crystal. The material was analyzed by FT–IR vibrational spectroscopy, while a computational approach was used to elucidate the vibrational frequ

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44

Ruel, Réjean, Carl Thibeault, Alexandre L’Heureux, et al. "Discovery and preclinical studies of 5-isopropyl-6-(5-methyl-1,3,4-oxadiazol-2-yl)-N-(2-methyl-1H-pyrrolo[2,3-b]pyridin-5-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amine (BMS-645737), an in vivo active potent VEGFR-2 inhibitor." Bioorganic & Medicinal Chemistry Letters 18, no. 9 (2008): 2985–89. http://dx.doi.org/10.1016/j.bmcl.2008.03.057.

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45

Zhang, Ping, Xiang-Yang Bai, and Ting Zhang. "Crystal structure of 9-butyl-6-[2-(pyridin-4-yl)ethenyl]carbazol-3-amine." Acta Crystallographica Section E Crystallographic Communications 71, no. 5 (2015): o345—o346. http://dx.doi.org/10.1107/s2056989015007975.

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The asymmetric unit of the title compound, C23H23N3, consists of two molecules,AandB, with different conformations. In moleculeA, the dihedral angle between the carbazole ring system (r.m.s. deviation = 0.028 Å) and the pyridine ring is 20.28 (9)° and the N—C—C—C torsion angle of the butyl side chain is −63.4 (3)°. The equivalent data for moleculeBare 0.065 Å, 48.28 (11)° and 61.0 (3)°, respectively. In the crystal, the components are connected by weak N—H...N hydrogen bonds, generating [030]C(14) chains of alternatingAandBmolecules.

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46

Laskar, Payel, Naoto Kuwamura, Nobuto Yoshinari, and Takumi Konno. "Crystal structure of (2S,4S)-5,5-dimethyl-2-(pyridin-2-yl)-1,3-thiazolidine-4-carboxylic acid." Acta Crystallographica Section E Structure Reports Online 70, no. 12 (2014): o1264. http://dx.doi.org/10.1107/s1600536814024854.

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In the title compound, C11H14N2O2S, the thiazolidine ring has an envelope conformation with the C atom bonded to the carboxylic acid group at the flap. Two C atoms of the thiazolidine ring adoptSconformations. In the crystal, O—H...N hydrogen bonds between the amine and carboxylic acid groups construct a helical chain structure along thea-axis direction. The chains are further connectedviaweak C—H...π contacts, forming a layer parallel to theacplane.

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47

Basaran, Ismet, Md Mhahabubur Rhaman, Douglas R. Powell, and Md Alamgir Hossain. "Crystal structure of bis(bis{(E)-[(6-{(E)-[(4-fluorobenzyl)imino]methyl}pyridin-2-yl)methylidene](4-fluorophenyl)amine}nickel(II)) tetrabromide nonahydrate." Acta Crystallographica Section E Crystallographic Communications 71, no. 12 (2015): m226—m227. http://dx.doi.org/10.1107/s2056989015021519.

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In the title complex, [Ni(C21H17F2N3)2]2Br4·9H2O, there are two independent metal complexes per asymmetric unit and two ligands per metal complex. The structural features (bond lengths and angles) of the two complexes are almost identical. In each complex, the nickel(II) ion is coordinated in an octahedral environment by six N atoms from two chelating (9E)-N-({6-[(E)-(4-fluorobenzylimino)methyl]pyridin-2-yl}methylene)(4-fluorophenyl)methanammine ligands. The Ni—N bond lengths range from 1.973 (2) to 2.169 (2) Å, while the chelate N—Ni—N angles range from 77.01 (10) to 105.89 (9)°. Additionally

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48

Arman, Hadi D., Trupta Kaulgud, and Edward R. T. Tiekink. "4-Amino-N-(2,3-dihydro-1,3-thiazol-2-ylidene)benzenesulfonamide–2,4,6-tris(pyridin-2-yl)-1,3,5-triazine (1/1)." Acta Crystallographica Section E Structure Reports Online 70, no. 4 (2014): o402—o403. http://dx.doi.org/10.1107/s1600536814004838.

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The sulfathiazole molecule in the title 1:1 co-crystal, C9H9N3O2S2·C18H12N6, adopts an approximate L-shape [dihedral angle between the five- and six-membered rings = 86.20 (9)°] and features an intramolecular hypervalent S...O interaction [2.8666 (15) Å]. Overall, the triazine molecule has the shape of a disk as the pendant pyridine rings are relatively close to coplanar with the central ring [dihedral angles = 18.35 (9), 6.12 (9) and 4.67 (9)°]. In the crystal packing, a linear supramolecular chain aligned along [01-1] is formed as a result of amino–pyridyl N—H...N hydrogen bonding withsyn-di

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El-Gokha, Ahmed, Dieter Schollmeyer, and Pierre Koch. "4-Methyl-N-(4-methylpyridin-2-yl)-N-(3,4,5,6-tetrahydro-2H-pyran-4-yl)pyridin-2-amine." IUCrData 1, no. 5 (2016). http://dx.doi.org/10.1107/s241431461600804x.

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Ravi Shankar, B., V. Vijayakumar, H. Sivaramakrishnan, and C. Suneel Manohar. "Synthesis of Novel N-(6-(Trifluoromethyl)Pyridin-2-yl)Pyrimidin-4-Amine Analogues." Polycyclic Aromatic Compounds, September 20, 2021, 1–8. http://dx.doi.org/10.1080/10406638.2021.1980062.

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