Tag: 100-200

Evaluation of Hydrogen-Bond Acceptors for Redox-Switchable Resorcin[4]arene Cavitands was written by Pochorovski, Igor;Milic, Jovana;Kolarski, Dusan;Gropp, Cornelius;Schweizer, W. Bernd;Diederich, Francois. And the article was included in Journal of the American Chemical Society in 2014.SDS of cas: 21252-69-7 This article mentions the following:

Various H-bond acceptor groups were evaluated for their propensity to induce conformational switching between the kite and vase forms of diquinone-diquinoxaline resorcin[4]arene cavitands upon redox interconversion. The H-bond acceptors were placed on the quinoxaline walls with the purpose of stabilizing the vase form only in the reduced hydroquinone state of the cavitand by forming H-bonds with the hydroquinone OH groups. Design guidelines for successful acceptors were derived. The carboxamide acceptor was shown to be the best candidate. Based on this moiety, a redox-switchable triptycene-based basket that can completely sterically encapsulate a guest in its closed vase conformation was prepared The basket binds small mol. guests with association constants of up to 10⁴ M^-1 in mesitylene-d₁₂ and exhibits slow guest exchange kinetics with a half-life for guest release in the order of 10⁴ s. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7SDS of cas: 21252-69-7).

1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.SDS of cas: 21252-69-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Syntheses of some nitroimidazole substituted boronic acids: precursors to technetium-99m complexes with potential for imaging hypoxic tissue was written by Raju, N.;Ramalingam, K.;Nowotnik, D. P.. And the article was included in Tetrahedron in 1992.Category: imidazoles-derivatives This article mentions the following:

A number of nitroimidazole-substituted alkyl- and arylboronic acids I (R = NO₂, R¹ = H, X = C₆H₄-4, CH₂C₆H₄-4, CH₂CH₂, CH(OH)CH₂OCH₂C₆H₄-4, CONHCH₂C₆H₄-4; R = H, Me, R¹ = NO₂, X = C₆H₄-4) were synthesized as precursors to ^99mTc complexes under investigation as potential imaging agents of hypoxia. In the experiment, the researchers used many compounds, for example, 2-(2-Nitro-1H-imidazol-1-yl)acetic acid (cas: 22813-32-7Category: imidazoles-derivatives).

2-(2-Nitro-1H-imidazol-1-yl)acetic acid (cas: 22813-32-7) belongs to imidazole derivatives. Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Structure-based de novo design of non-nucleoside adenosine deaminase inhibitors was written by Terasaka, Tadashi;Nakanishi, Isao;Nakamura, Katsuya;Eikyu, Yoshiteru;Kinoshita, Takayoshi;Nishio, Nobuya;Sato, Akihiro;Kuno, Masako;Seki, Nobuo;Sakane, Kazuo. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2003.Application of 26832-08-6 This article mentions the following:

We searched for non-nucleoside inhibitors of adenosine deaminase by rational structure-based de novo design and succeeded in the discovery of 1-(1-hydroxy-4-phenyl-2-butyl)imidazole-4-carboxamide (FR221647: K_i = 5.9 μM to human ADA) as a novel inhibitor with moderate activity and good pharmacokinetics compared with the known inhibitors pentostatin and EHNA. In the experiment, the researchers used many compounds, for example, 1H-Imidazole-4-carboxamide (cas: 26832-08-6Application of 26832-08-6).

1H-Imidazole-4-carboxamide (cas: 26832-08-6) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Application of 26832-08-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Regio- and stereocontrolled synthesis and conformational analysis of benzimidazole nucleosides was written by Ji, Qi;Li, Jinliang;Ding, Fei;Han, Jie;Pang, Meili;Liu, Shuangxi;Meng, Jiben. And the article was included in Tetrahedron in 2006.SDS of cas: 4887-83-6 This article mentions the following:

Regio- and stereocontrolled synthesis and conformational anal. of a series of benzimidazole nucleosides were achieved. A simple method by ¹H NMR 1D NOE experiment was developed for estimation of syn or anti conformation of benzimidazole nucleosides. Substituents at C2 of benzimidazole demonstrated to play a key role both in the unexpected regioselectivity of the glycosidic reaction and in the conformation distributions of the final products. In the experiment, the researchers used many compounds, for example, 7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6SDS of cas: 4887-83-6).

7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.SDS of cas: 4887-83-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Enantioselective Nickel-Catalyzed Michael Additions of 2-Acetylazaarenes to Nitroalkenes was written by Simpson, Alain J.;Lam, Hon Wai. And the article was included in Organic Letters in 2013.Electric Literature of C6H8N2O This article mentions the following:

2-Acetylazaarenes undergo catalytic enantioselective Michael additions to nitroalkenes in the presence of a chiral Ni(II)-bis(oxazoline) complex [e.g., 2-acetylpyridine + trans-β-nitrostyrene → (R)-4-nitro-3-phenyl-1-(pyridin-2-yl)-1-one]. The process is tolerant of a range of azines or azoles in the pronucleophilic component, resulting in Michael products in moderate to high enantioselectivities. In the experiment, the researchers used many compounds, for example, 1-(1-Methyl-1H-imidazol-2-yl)ethanone (cas: 85692-37-1Electric Literature of C6H8N2O).

1-(1-Methyl-1H-imidazol-2-yl)ethanone (cas: 85692-37-1) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Electric Literature of C6H8N2O

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Ionic liquids coated Fe₃O₄ based inorganic-organic hybrid materials and their application in the simultaneous determination of DNA bases was written by Kaur, Balwinder;Srivastava, Rajendra. And the article was included in Colloids and Surfaces, B: Biointerfaces in 2014.Related Products of 35487-17-3 This article mentions the following:

Ionic liquids (ILs) coated Fe₃O₄ based inorganic-organic hybrid materials (represented as Fe₃O₄/ILs) were synthesized. ILs such as methylimidazolium chloride ([Hmim][Cl]) and 1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) were investigated. For comparative study, quaternary ammonium salts such as choline chloride, cetyltrimethylammonium bromide [C₁₆H₃₃N(CH₃)₃][Br], and trimethylstearylammonium chloride [C₁₈H₃₇N(CH₃)₃][Cl] were also investigated. Materials were characterized by X-ray diffraction, nitrogen sorption, Fourier transform IR and scanning/transmission electron microscopy. Electrochem. sensors based on Fe₃O₄/ILs modified glassy carbon electrodes were fabricated for the simultaneous determination of all four DNA bases. The electrochem. behavior of DNA bases was investigated in detail. Various reaction parameters such as effect of scan rate, number of electrons involved in the rate determining step, electron transfer coefficient, surface adsorbed concentration, and the electrode reaction standard rate constant were investigated. Catalytic activity obtained at various Fe₃O₄/ILs modified electrodes was explained using DFT calculation The anal. performance of the sensor was demonstrated in the simultaneous determination of guanine, adenine, thymine, and cytosine in calf thymus DNA sample. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3Related Products of 35487-17-3).

1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Related Products of 35487-17-3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Aggregation of Double-Tailed Ionic Liquid 1,3-Dioctylimidazolium Bromide and the Interaction with Triblock Copolymer F127 was written by Ge, Lingling;Wang, Qi;Wei, Duo;Zhang, Xiaohong;Guo, Rong. And the article was included in Journal of Physical Chemistry B in 2013.Application In Synthesis of 1-Octyl-1H-imidazole This article mentions the following:

The aggregation of ionic liquid-based double-tailed surfactant, 1,3-dioctylimidazolium bromide ([Doim]-Br) and its interaction with pluronic copolymer F127 were systematically investigated by NMR , surface tension, dynamic light scattering (DLS), and isothermal titration calorimetry (ITC). It was found that the [Doim]Br aggregates are composed with the alkyl chains embedded in the micellar core and with the imidazolium rings parallel and staggered on the hydrophilic layer of micelles, which was generally different from the single-tailed IL [omim]-Br. The hydrogen bonding between protons attached to the imidazolium rings and anion Br^– was enhanced upon the aggregation of [Doim]-Br. The aggregation of F127 was promoted by addition of [Doim]-Br, which was more efficient than the single-tailed surfactant. At lower [Doim]Br content, [Doim]Br monomers embedded deeply into F127 micelle core. At higher [Doim]Br concentrations, the F127 micelles were disassocd., and then F127 chains penetrated into [Doim]Br micelle. In addition, the microstructure of F127/[Doim]Br complex can also be tuned by temperature In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Application In Synthesis of 1-Octyl-1H-imidazole).

1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Application In Synthesis of 1-Octyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Annulation reactions of N-heterocycles to condensed pyridones with bridgehead nitrogen was written by Linke, Siegfried;Kurz, Juergen;Lipinski, Dietmar;Gau, Wolfgang. And the article was included in Liebigs Annalen der Chemie in 1980.Reference of 3012-80-4 This article mentions the following:

The Horner-Wittig reaction of aromatic and heteroaromatic aldehydes with (EtO)₂P(O)CH(CO₂R)CH₂CO₂R (R = Me, Et) gave R¹CH:C(CO₂R)CH₂CO₂R (R¹ = Ph, 4-R²C₆H₄, thienyl, furyl, etc; R² = Me, Cl, OMe, NO₂) or I (A = 2-pyridyl, 2-imidazolyl, 3-isoxazolyl, 2-quinolyl, 4-pyrimidinyl, etc; R³ = H, Me, Ph, PhCH₂), having the (E)-configuration. I were cyclized to the pyridones II. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde (cas: 3012-80-4Reference of 3012-80-4).

1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde (cas: 3012-80-4) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Reference of 3012-80-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Palladium-Catalyzed Ligand-Free C-N Coupling Reactions: Selective Diheteroarylation of Amines with 2-Halobenzimidazoles was written by Sang, Wei;Gavi, Ayao Jean;Yu, Bao-Yi;Cheng, Hua;Yuan, Ye;Wu, Yuan;Lommens, Petra;Chen, Cheng;Verpoort, Francis. And the article was included in Chemistry – An Asian Journal in 2020.Computed Properties of C8H8N2 This article mentions the following:

Considering the potential values of the di-substituted products I (R¹ = H, Me, Cl; R² = Me, Et, iBu, iPr, phenyl; R³ = 4-bromophenyl, 3-methylphenyl, 4-methoxyphenyl, etc.), the first selective diheteroarylation of amines R³NH₂ with 2-halobenzimidazoles II has been reported. Notably, this Pd-catalyzed transformation was realized under ligand-free conditions. Accordingly, numerous target products were efficiently produced from various aromatic or aliphatic amines R³NH₂ and 2-halobenzimidazoles II. It was worth noting that two representative products were further confirmed by X-ray crystallog. More significantly, this catalytic process could be applied to the synthesis and discovery of new bioactive compounds, which demonstrated the synthetic usefulness of this newly developed approach. In the experiment, the researchers used many compounds, for example, 1-Methylbenzimidazole (cas: 1632-83-3Computed Properties of C8H8N2).

1-Methylbenzimidazole (cas: 1632-83-3) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Computed Properties of C8H8N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Structure-Based Design, Synthesis, and Structure-Activity Relationship Studies of Novel Non-nucleoside Adenosine Deaminase Inhibitors was written by Terasaka, Tadashi;Kinoshita, Takayoshi;Kuno, Masako;Seki, Nobuo;Tanaka, Kohichiro;Nakanishi, Isao. And the article was included in Journal of Medicinal Chemistry in 2004.COA of Formula: C4H5N3O This article mentions the following:

Optimization efforts around the novel, highly potent non-nucleoside adenosine deaminase (ADA) inhibitor, 1-[(R)-1-hydroxy-4-(6-(3-(1-methylbenzimidazol-2-yl)propionylamino)indol-1-yl)-2-butyl]imidazole-4-carboxamide [I] (K_i = 7.7 nM), are described. Structure-based drug design utilizing the crystal structure of the I/ADA complex was performed in order to obtain structure-activity relationships for this type of compound rationally and effectively. To utilize the newly formed hydrophobic space (F2), replacement of the benzimidazole ring of I with a Pr chain [II, X = NHCOCH₂CH₂, R = Pr] or a Ph ring [II, X = NHCOCH₂CH₂, R = Ph] was tolerated in terms of binding activity, and the length of the methylene-spacer was shown to be optimal at two or three. Replacement of an amide with an ether as a linker was also well tolerated in terms of binding activity and moreover improved the oral absorption [I, XR = O(CH₂)_nPh, n = 3, 4]. Finally, transformation of indol-1-yl to indol-3-yl resulted in discovery of a novel highly potent and orally bioavailable ADA inhibitor, 1-[(R)-4-(5-(3-(4-chlorophenyl)propoxy)-1-methylindol-3-yl)-1-hydroxy-2-butyl]imidazole-4-carboxamide. In the experiment, the researchers used many compounds, for example, 1H-Imidazole-4-carboxamide (cas: 26832-08-6COA of Formula: C4H5N3O).

1H-Imidazole-4-carboxamide (cas: 26832-08-6) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.COA of Formula: C4H5N3O

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem