Tag: M.W=100-200

HPLC of Formula: 56621-48-8. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Synthesis of New N1 Arylpiperazine Substituted Xanthine Derivatives and Evaluation of their Antioxidant and Cytotoxic Effects. Author is Andonova, Lily; Valkova, Iva; Zheleva-Dimitrova, Dimitrina; Georgieva, Maya; Momekov, Georgi; Zlatkov, Alexander.

A series of new xanthine derivatives comprising an arylpiperazine I (R = Bn, 4-FC6H4, 2-MeOC6H4, etc.) moiety at N1 were synthesized. The cytotoxicity against human T-cell leukemia cell SKW-3, human acute myeloid leukemia HL-60 and human Bcell precursor leukemia cell REH is evaluated. The relationship between the structure and cytotoxicity of the compounds was investigated by quant. structure-activity relationship (QSAR) anal. and the important structural parameters were drawn. The purity of the substances is proven by corresponding m.ps. and elemental anal. The antioxidant activity has been evaluated by four common methods – DPPH, ABTS, FRAP and lipid peroxidation assay. The cytotoxic effects of the tested series were evaluated using the standard MTT-dye reduction assay on three tumor cell lines. The highest antioxidant activity was demonstrated by compound I (R = 4-HOC6H4). The highest cytotoxic effect was observed for compound I (R = bis(4-fluorophenyl)methyl). It was found that cytotoxicity against SKW-3 depends on the electron d. distribution in the structures. Branching of the mol. skeleton and introduction of heteroatoms like fluorine and sulfur in the structures also significantly improved the antiproliferative activity of the compounds

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Ether – Wikipedia,
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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, International Journal for Pharmaceutical Research Scholars called Synthesis and biological evaluation of novel carbazole derivatives, Author is Hedapara, K. R.; Kharadi, G. J., which mentions a compound: 56621-48-8, SMILESS is OC1=CC=C(N2CCNCC2)C=C1, Molecular C10H14N2O, Reference of 4-(Piperazin-1-yl)phenol.

The series of carbazole derivatives were synthesized in high yield and quality through simple straight forward reaction of 4-(oxiran-2-ylmethoxy)-9H-carbazole with various nucleophiles like piperazine containing heterocyclic derivatives or quinoline derivatives without using any base. All the compounds were screened for their antibacterial and antifungal activities. The compound 1-((9H-carbazol-4-yl)oxy)-3-(4-(benzo[d]isothiazol-3-yl)piperazin-1yl)propan-2-ol exhibited good inhibition towards antimicrobial activity compared to the other compounds

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Ether – Wikipedia,
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Application of 118430-78-7. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-Methyl-3-(thiophen-2-yl)-1H-pyrazol-5-amine, is researched, Molecular C8H9N3S, CAS is 118430-78-7, about Studies on dihydropyridines. II. Synthesis of 4,7-dihydropyrazolo[3,4-b]pyridines with vasodilating and antihypertensive activities. Author is Adachi, Ikuo; Yamamori, Teruo; Hiramatsu, Yoshiharu; Sakai, Katsunori; Sato, Hatsuo; Kawakami, Masaru; Uno, Osamu; Ueda, Motohiko.

A series of 4-aryl-4,7-dihydropyrazolo[3,4-b]pyridine-5-carboxylate derivatives I (R = Me, Ph, cyclopentyl; R1 = Me, Et, CHMe2, cyclohexyl, substituted phenethyl, etc.; R2 = 2-O2NC6H4, 3-O2NC6H4, 2-ClC6H4, 2.8-Cl2C6H4, pyridyl; R3 = H, Me, CHMe2, Ph, cycloalkyl, CO2Et, pyridyl, etc.) was prepared and the compounds were tested for Ca-blocking activity in isolated guinea pig portal vein, antihypertensive activity in spontaneously hypertensive rats, and coronary vasodilating effect in isolated guinea pig heart. A number of derivatives had potent antihypertensive and coronary vasodilating activities. The structure-activity relationships of the series indicated that a 3-cyclopentyl or 3-cyclohexyl substituent and a hydrophobic 5-ester moiety with moderate bulkiness were effective for increasing the pharmacol. potencies.

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Ether – Wikipedia,
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Application In Synthesis of 4-(Piperazin-1-yl)phenol. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about SuFEx-enabled, chemoselective synthesis of triflates, triflamides and triflimidates.

The ex-situ generation of trifluoromethanesulfonyl fluoride (CF3SO2F) gas in a two chamber system, and its use as a new SuFEx handle to efficiently synthesize triflates and triflamides were reported. This broadly tolerated protocol lends itself to peptide modification or to telescoping into coupling reactions. Moreover, redesigning the SVI-F connector with a S=O → S=NR replacement furnished the analogous triflimidoyl fluorides as SuFEx electrophiles, which were engaged in the synthesis of rarely reported triflimidate esters. Notably, experiments showed H2O to be the key towards achieving chemoselective trifluoromethanesulfonation of phenols vs. amine groups, a phenomenon best explained-using ab initio metadynamics simulations-by a hydrogen bonded termol. transition state for the CF3SO2F triflylation of amines.

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Ether – Wikipedia,
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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ) is researched.Synthetic Route of C10H14N2O.Hedapara, K. R.; Kharadi, G. J. published the article 《Synthesis and biological evaluation of novel carbazole derivatives》 about this compound( cas:56621-48-8 ) in International Journal for Pharmaceutical Research Scholars. Keywords: carbazole piperazine quinoline preparation antibacterial antifungal. Let’s learn more about this compound (cas:56621-48-8).

The series of carbazole derivatives were synthesized in high yield and quality through simple straight forward reaction of 4-(oxiran-2-ylmethoxy)-9H-carbazole with various nucleophiles like piperazine containing heterocyclic derivatives or quinoline derivatives without using any base. All the compounds were screened for their antibacterial and antifungal activities. The compound 1-((9H-carbazol-4-yl)oxy)-3-(4-(benzo[d]isothiazol-3-yl)piperazin-1yl)propan-2-ol exhibited good inhibition towards antimicrobial activity compared to the other compounds

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Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Affinity-Based Selectivity Profiling of an In-Class Selective Competitive Inhibitor of Acyl Protein Thioesterase 2, published in 2017-02-09, which mentions a compound: 56621-48-8, mainly applied to profiling inhibitor acyl protein thioesterase; Activity-based protein profiling; chemical proteomics; inhibitor selectivity; native mass spectrometry, Category: ethers-buliding-blocks.

Activity-based protein profiling (ABPP) has revolutionized the discovery and optimization of active-site ligands across distinct enzyme families, providing a robust platform for in-class selectivity profiling. Nonetheless, this approach is less straightforward for profiling reversible inhibitors and does not access proteins outside the ABPP probe’s target profile. While the active-site competitive acyl protein thioesterase 2 (APT2) inhibitor ML349 (Ki = 120 nM) is highly selective within the serine hydrolase enzyme family, it could still interact with other cellular targets. Here we present a chemoproteomic workflow to enrich and profile candidate ML349-binding proteins. In human cell lysates, biotinylated-ML349 enriches a recurring set of proteins, including metabolite kinases and flavin-dependent oxidoreductases that are potentially enhanced by avidity-driven multimeric interactions. Confirmatory assays by native mass spectrometry and fluorescence polarization quickly rank-ordered weak off-targets, providing justification to explore ligand interactions and stoichiometry beyond ABPP.

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Ether – Wikipedia,
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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 118430-78-7, is researched, Molecular C8H9N3S, about Discovery of new orally active phosphodiesterase (PDE4) inhibitors, the main research direction is phosphodiesterase PDE4 inhibitor discovery oral antiinflammatory; anilinopyrazolopyridine derivative preparation PDE4 inhibiting structure subtype selectivity.Synthetic Route of C8H9N3S.

A series of 4-anilinopyrazolopyridine derivatives were synthesized and biol. evaluated as inhibitors of phosphodiesterase (PDE4). Chem. modification of 3, a structurally new chem. lead that was found in our inhouse library, was focused on 1- and 3-substituents. Full details of the discovery of a new orally active chem. lead 5 are presented. Structure-activity relationship data, pharmacol. evaluation, and the subtype selectivity study are also presented.

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Ether – Wikipedia,
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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ) is researched.Quality Control of 4-(Piperazin-1-yl)phenol.Beiginejad, Hadi; Amani, Ameneh; Nematollahi, Davood; Khazalpour, Sadegh published the article 《Thermodynamic study of the electrochemical oxidation of some aminophenol derivatives: Experimental and theoretical investigation》 about this compound( cas:56621-48-8 ) in Electrochimica Acta. Keywords: thermodn electrochem oxidation aminophenol derivative. Let’s learn more about this compound (cas:56621-48-8).

Electrochem. oxidation of some aminophenol derivatives (1-5) was studied both exptl. and theor. Exptl. results were obtained using cyclic voltammetry and controlled potential coulometry. The theor. results were calculated at DFT (B3LYP and BP86) levels of theory and 6-311 + G (p,d) basis sets. Using a general thermodn. cycle, the calculated ΔGtot of the oxidation of the studied aminophenol derivatives indicates that thermodn. is one of the important parameters on the potential oxidation Electrochem. oxidation potential of 1-5 is directly dependent on the ΔGtot of electrochem. oxidation In addition mechanisms of the electrochem. oxidation of 4-(piperazin-1-yl) phenol (6) in the presence of various nucleophiles was studied in viewpoint of the thermodn. Mechanistic study of the electrochem. oxidation of 6 in the presence of different nucleophiles indicates that although the electrochem. oxidations of 6H+ in the presence of different nucleophiles have different mechanisms but proceed in the thermodynamically favored directions.

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Ether – Wikipedia,
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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Patel, Amit B.; Rohit, Jignesh V. researched the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ).Related Products of 56621-48-8.They published the article 《Development of 1,3,4-Thiadiazole and Piperazine Fused Hybrid Quinazoline Derivatives as Dynamic Antimycobacterial Agents》 about this compound( cas:56621-48-8 ) in Polycyclic Aromatic Compounds. Keywords: phenylpiperazinylmethyl thioxodihydrothiadiazolyl phenylquinazolinyloxy benzonitrile antimycobacterial antitumor SAR. We’ll tell you more about this compound (cas:56621-48-8).

Novel series of 1,3,4-thiadiazole and piperazine substituted quinazoline derivatives I [R = H, Cl, CF3, etc] were designed, synthesized, and tested in vitro for antimycobacterial activity. The synthetic procedure involved Suzuki C-C cross-coupling on a quinazoline ring and subsequently by the formation of 1,3,4-thiadiazole based piperazines. Many synthesized analogs were observed active against Mycobacterium H37Rv strain in preliminary anal. using the BACTEC MGIT method. A secondary antimycobacterial assay using the Lowenstein-Jensen MIC method indicates that I [R = bromo, trifluoromethyl, hydroxy] groups substituted analogs was showed strong efficacy in the range of 3.12-6.25 μg/mL. Active compounds were also tested for their cytotoxic activity against Human cervical (HeLa) cells at their MICs. The synthesized analogs were analyzed by IR, 1H NMR, 13 C NMR, MS, and elemental anal. for their structure determination

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Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Quantitative structure-hepatotoxicity assessment of series arylpiperazine-N1-substituted theobromine derivatives, published in 2020-02-29, which mentions a compound: 56621-48-8, mainly applied to arylpiperazinylalkyl theobromine preparation hepatotoxicity, Category: ethers-buliding-blocks.

In this work series new theobromines, compounds I [R = benzyl, 4-hydroxyphenyl, bis(4-fluorophenyl)methyl, etc.; n = 3,4] with established antioxidant and antiproliferative activities were evaluated for their hepatotoxic effects on cellular and sub-cellular level. On isolated rat hepatocytes, compounds I [R = 4-hydroxyphenyl, n = 3,4] expressed lowest toxicity, while compounds I [R = bis(4-fluorophenyl)methyl, n = 3,4] showed highest toxicity. Compounds I [R = bis(4-fluorophenyl)methyl, n = 3,4] showed the most evident pro-oxidant effect in a lipid peroxidation model on rat liver microsomes, followed by compounds I [R = 4-fluorophenyl, n = 3,4], while the other compounds didn’t reveal statistically significant pro-oxidant effects. The performed quant. structure-toxicity relationship (QSTR) anal. show that increased lipophilicity of the tested compounds pos. correlates to their hepatotoxicity. Opposite, the presence in the structure of highly pos. H-atoms and strongly neg. oxygen, possibly originating from hydrogen bond donor groups, are associated with reduced hepatotoxicity.

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Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem