Ethers-buliding-blocks

Name: 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 Synthesis and antioxidant activity of some 1-aryl/aralkyl piperazine derivatives with xanthine moiety at N4.

Six new aryl/aralkyl substituted piperazine derivatives, containing methylxanthine moiety I (R = Bn, 4-FC6H4, 4-HOC6H4, etc.) were synthesized. All compounds were in vitro screened for their activity as antioxidants using DPPH (2,2′-Diphenyl-1-picrylhydrazyl), ABTS (2,2′-azinobis-(3-ethylbenzothiazine-6-sulfonic acid)) and FRAP (ferric reducing/antioxidant power) methods. The antioxidant activity of the studied compounds against lipid peroxidation was also measured. The highest antioxidant activity was demonstrated by compound I (R = 4-HOC6H4). It is obvious that the presence of a hydroxyl group in the structure is essential for the antioxidant properties and should be taken into consideration in further design of structures with potential antioxidant properties.

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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.Application of 56621-48-8.Kashif Amir, Muhammad; Hogarth, Graeme; Khan, Zaibunisa; Imran, Muhammad; Zia-ur-Rehman published the article 《Platinum(II) dithiocarbamate complexes [Pt(S2CNR2)Cl(PAr3)] as anticancer and DNA-damaging agents》 about this compound( cas:56621-48-8 ) in Inorganica Chimica Acta. Keywords: platinum dithiocarbamate complex preparation anticancer DNA binding; optimized mol structure platinum dithiocarbamate complex. Let’s learn more about this compound (cas:56621-48-8).

Following the fortunate discovery of cisplatin as an anticancer drug the search for new effective Pt-containing analogs with high potency but reduced side effects and resistance is of great importance. Herein, we report four new monofunctional platinum(II) dithiocarbamate complexes, [Pt(S2CNR2)Cl(PAr3)], and their activity against selected cancer cell lines. DFT-optimized structures reveal steric hindrance, similar to phenanthriplatin, from an axial C-H site of the triarylphosphine. High activity against selected cancer cell lines, MCF-7 > LU > Hepa-IcIc7, can be attributed to the axial protection offered by the aromatic C-H moiety, together with the lipophilicity and formation of bulkier and more hydrophobic DNA adducts. DNA binding, denaturing and plasmid cleavage studies demonstrate their potential to cleave DNA via electrostatic or covalent interactions. DFT and exptl. studies show the ability to replace chloride with different nucleophiles; substitution with smaller nucleophiles being fast while with larger nucleophiles is slow.

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Staack, R. F.; Theobald, D. S.; Paul, L. D.; Springer, D.; Kraemer, T.; Maurer, H. H. published the article 《In vivo metabolism of the new designer drug 1-(4-methoxyphenyl)piperazine (MeOPP) in rat and identification of the human cytochrome P450 enzymes responsible for the major metabolic step》. Keywords: methoxyphenylpiperazine metabolism cytochrome P450 2D6.They researched the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8 ).Recommanded Product: 56621-48-8. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:56621-48-8) here.

The in vivo metabolism of 1-(4-methoxyphenyl)piperazine (MeOPP), a novel designer drug, was studied in male Wistar rats. MeOPP was mainly O-demethylated to 1-(4-hydroxyphenyl)piperazine (4-HO-PP) in addition to degradation of the piperazine moiety. O-demethylation, the major metabolic step, was studied with cDNA-expressed human hepatic cytochrome P 450 (CYP) enzymes in pooled human liver microsomes (pHLM) and in single donor human liver microsomes with CYP2D6 poor metabolizer genotype (PM HLM). CYP2D6 catalyzed O-demethylation with apparent Km and Vmax values of 48.34 μM and 5.44 pmol min-1 pmol-1 CYP, resp. pHLM catalyzed the monitored reaction with an apparent Km = 204.80 μM and Vmax = 127.50 pmol min-1 mg-1 protein. The CYP2D6-specific chem. inhibitor quinidine (1 and 3 μM) significantly inhibited 4-HO-PP formation by 71.9% and by 98.5%, resp., in incubation mixtures with pHLM and 200 μM MeOPP. O-demethylation was significantly lower in PM HLM compared with pHLM (70.6%). These data suggest that polymorphically expressed CYP2D6 is the enzyme mainly responsible for MeOPP O-demethylation.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called 13C Satellite-Free 1H NMR Spectra, published in 2017-11-21, which mentions a compound: 73590-85-9, Name is 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, Molecular C17H19N3O2S, SDS of cas: 73590-85-9.

A new NMR experiment (Destruction of Interfering Satellites by Perfect Echo Low-pass filtration, DISPEL) is introduced that facilitates the anal. of low-level components in high dynamic range mixtures by suppressing one-bond 13C satellite signals in 1H spectra. Since the natural abundance of 13C is around 1.1%, these satellites appear at 0.54% of the intensity of a parent peak, mimicking and often masking impurity signals. The new experiment suppresses one-bond 13C satellite signals, with high efficiency, at negligible cost in signal-to-noise ratio, and over a wide range of one-bond coupling constants, without the need for broadband 13C decoupling.

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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.Reference of 4-(Piperazin-1-yl)phenol.Ryu, Eun Kyoung; Choe, Yearn Seong; Kim, Dong Hyun; Ko, Bong-Ho; Choi, Yong; Lee, Kyung-Han; Kim, Byung-Tae published the article 《In vitro metabolism studies of 18F-labeled 1-phenylpiperazine using mouse liver S9 fraction》 about this compound( cas:56621-48-8 ) in Nuclear Medicine and Biology. Keywords: radiolabeled fluorine 18 phenylpiperazine metabolism liver S9 fraction. Let’s learn more about this compound (cas:56621-48-8).

The in vitro metabolism of 1-(4-[18F]fluoromethylbenzyl)-4-phenylpiperazine ([18F]1) and 1-(4-[18F]fluorobenzyl)-4-phenylpiperazine ([18F]2) was investigated using mouse liver S9 fraction. Results were compared to those of in vivo metabolism using mouse blood and bone and to in vitro metabolism using mouse liver microsomes. Defluorination was the main metabolic pathway for [18F]1 in vitro and in vivo. Based on TLC, HPLC and LC-MS data, [18F]fluoride ion and less polar radioactive metabolites derived from aromatic ring oxidation were detected in vitro, and the latter metabolites were rapidly converted into the former with time, whereas only the [18F]fluoride ion was detected in vivo. Similarly, the in vitro metabolism of [18F]2 using either S9 fraction or microsomes showed the same pattern as the in vivo method using blood; however, the radioactive metabolites derived from aromatic ring oxidation were not detected in vivo. These results demonstrate that liver S9 fraction can be widely used to investigate the intermediate radioactive metabolites and to predict the in vivo metabolism of radiotracers.

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Ether – Wikipedia,
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Safety of 4-(Piperazin-1-yl)phenol. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Searching for multi-target antipsychotics: Discovery of orally active heterocyclic N-phenylpiperazine ligands of D2-like and 5-HT1A receptors. Author is Neves, Gilda; Menegatti, Ricardo; Antonio, Camila B.; Grazziottin, Luiza R.; Vieira, Renan O.; Rates, Stela M. K.; Noel, Francois; Barreiro, Eliezer J.; Fraga, Carlos A. M..

The authors described herein the design, synthesis, and pharmacol. evaluation of N-phenylpiperazine heterocyclic derivatives as multi-target compounds potentially useful for the treatment of schizophrenia. The isosteric replacement of the heterocyclic ring at the biaryl motif generating pyrazole, 1,2,3-triazole, and 2-methylimidazole[1,2-a]pyridine derivatives resulted in 21 analogs with different substitutions at the para-biaryl and para-phenylpiperazine positions. Among the compounds prepared, 4 (LASSBio-579) and 10 (LASSBio-664) exhibited an adequate binding profile and a potential for schizophrenia pos. symptoms treatment without cataleptogenic effects. Structural features of this mol. scaffold are discussed regarding binding affinity and selectivity for D2-like, 5-HT1A, and 5-HT2A receptors.

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Ether – Wikipedia,
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Computed Properties of C17H19N3O2S. 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: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Catalytic asymmetric oxidation of 1H-benzimidazolyl pyridinylmethyl sulfides with cumene hydroperoxide catalyzed by a titanium complex with (S,S)-N,N’-dibenzyl tartramide ligand.

A chiral titanium complex, formed in situ from Ti(Oi-Pr)4, (S,S)-N,N’-dibenzyl tartramide, and water was found to serve as an efficient catalyst for the asym. oxidations of 1H-benzimidazolyl pyridinylmethyl sulfides with cumene hydroperoxide (CHP) in the absence of a base. Several proton pump inhibitors (PPIs), such as esomeprazole, lansoprazole, rabeprazole, and pantoprazole were obtained in high yield (up to 92%) and excellent enantiomeric excess (up to 96%).

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Ether – Wikipedia,
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Beiginejad, Hadi; Nematollahi, Davood; Varmaghani, Fahimeh; Bayat, Mehdi published an article about the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8,SMILESS:OC1=CC=C(N2CCNCC2)C=C1 ).COA of Formula: C10H14N2O. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:56621-48-8) through the article.

Electrochem. oxidation of some p-aminophenol derivatives (1-5) in acidic solutions was studied both exptl. and theor. to provide insight into the influence of some factors on the hydrolysis reaction rate. The result of this work shows that the electrogenerated p-quinoneimines participate in the hydrolysis reaction and are converted to the p-benzoquinone. The hydrolysis reaction rate strongly depends on the structure of the p-aminophenols and solution’s pH. The observed homogeneous rate constants of hydrolysis (kobshyd) of p-quinoneimines were determined using digital simulation technique. The effect of different parameters such as: change of Gibbs free energy (ΔG) of the electrochem. oxidation of para-aminophenol derivatives (1-5), charge of reaction site, N-C4 bond order (Wiberg Bond Indexes, WBIs) and the nature of substituted group, on the hydrolysis rate constant were also studied. All calculations were performed using D. Functional Theory (DFT) both BP86 and B3LYP levels of theory and 6-311G (p,d) basis set. The N-C4 bond order and charge on the reaction site play significant roles in hydrolysis reaction’s rate.

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Ether – Wikipedia,
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Related Products of 73590-85-9. 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: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Disposition of the anti-ulcer medications ranitidine, cimetidine, and omeprazole following administration of multiple doses to exercised Thoroughbred horses. Author is Knych, H. K.; Stanley, S. D.; Arthur, R. M.; McKemie, D. S..

The use of anti-ulcer medications, such as cimetidine, ranitidine, and omeprazole, is common in performance horses. The use of these drugs is regulated in performance horses, and as such a withdrawal time is necessary prior to competition to avoid a medication violation. To the authors’ knowledge, there are no reports in the literature describing repeated oral administrations of these drugs in the horse to determine a regulatory threshold and related withdrawal time recommendations. Therefore, the objective of the current study was to describe the disposition and elimination pharmacokinetics of these anti-ulcer medications following oral administration to provide data upon which appropriate regulatory recommendations can be established. Nine exercised Thoroughbred horses were administered 20 mg/kg BID of cimetidine or 8 mg/kg BID of ranitidine, both for seven doses or 2.28 g of omeprazole SID for four doses. Blood samples were collected, serum drug concentrations were determined, and elimination pharmacokinetic parameters were calculated The serum elimination half-life was 7.05 ± 1.02, 7.43 ± 0.851 and 3.94 ± 1.04 h for cimetidine, ranitidine, and omeprazole, resp. Serum cimetidine and ranitidine concentrations were above the LOQ and omeprazole and omeprazole sulfide below the LOQ in all horses studied upon termination of sample collection.

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Ether – Wikipedia,
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Oelschlager, H.; Seeling, A.; Seeling, B.; Westesen, K.; Bunjes, H. published an article about the compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole( cas:73590-85-9,SMILESS:CC1=CN=C(CSC2=NC3=CC(OC)=CC=C3N2)C(C)=C1OC ).Electric Literature of C17H19N3O2S. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:73590-85-9) through the article.

5-Methoxy-2-[(3,5-dimethyl-4-methoxy-2-pyridyl)methylthio]-1-H-benzimidazole was oxidized with Oxone in diluted EtOH at -5° furnishing omeprazole with an excellent yield. Addnl., decomposition kinetics of omeprazole in aqueous EtOH are presented.

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Ether – Wikipedia,
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