Category: ethers-buliding-blocks

Reference of 4-(Piperazin-1-yl)phenol. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about Potent, selective, and orally active adenosine A2A receptor antagonists: Arylpiperazine derivatives of pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines. Author is Neustadt, Bernard R.; Hao, Jinsong; Lindo, Neil; Greenlee, William J.; Stamford, Andrew W.; Tulshian, Deen; Ongini, Ennio; Hunter, John; Monopoli, Angela; Bertorelli, Rosalia; Foster, Carolyn; Arik, Leyla; Lachowicz, Jean; Ng, Kwokei; Feng, Kung-I..

Antagonism of the adenosine A2A receptor offers great promise in the treatment of Parkinson’s disease. Employing the known pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidine A2A antagonist SCH 58261 as a starting point, we identified the potent and selective (vs. A1) antagonist 11h (I), orally active in the rat haloperidol-induced catalepsy model. We further optimized this lead to the methoxyethoxyethyl ether 12a (SCH 420814), which shows broad selectivity, good pharmacokinetic properties, and excellent in vivo activity.

After consulting a lot of data, we found that this compound(56621-48-8)Reference of 4-(Piperazin-1-yl)phenol can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Name: 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 Structure-Function Analysis of Phenylpiperazine Derivatives as Intestinal Permeation Enhancers. Author is Fein, Katherine C.; Lamson, Nicholas G.; Whitehead, Kathryn A..

Purpose: A major obstacle preventing oral administration of macromol. therapeutics is poor absorption across the intestinal epithelium into the bloodstream. One strategy to improve transport across this barrier is the use of chem. permeation enhancers. Several mol. families with permeation enhancing potential have been identified previously, including piperazines. In particular, 1-phenylpiperazine has been shown to enhance transepithelial transport with minimal cytotoxicity compared to similarly effective mols. To better understand how the chem. of 1-phenylpiperazine affects its utility as an intestinal permeation enhancer, this study examined a small library of 13 derivatives of 1-phenylpiperazine. Methods: The efficacy and cytotoxicity of 13 phenylpiperazine compounds were assessed in a Caco-2 model of the intestinal epithelium. Efficacy was measured using the paracellular diffusion marker calcein as well as by immunostaining and confocal imaging of Caco-2 monolayers. Results: Of the 13 derivatives, two enhanced the permeability of the fluorescent marker calcein over 100-fold. It was found that hydroxyl or primary amine substitutions on the Ph ring significantly increased toxicity, while aliphatic substitutions resulted in efficacy and toxicity profiles comparable to 1-phenylpiperazine. Conclusions: Several potent derivatives, including 1-methyl-4-phenylpiperazine and 1-(4-methylphenyl)piperazine, displayed lower toxicity than 1-phenylpiperazine, suggesting promise in future applications.

After consulting a lot of data, we found that this compound(56621-48-8)Name: 4-(Piperazin-1-yl)phenol can be used in many types of reactions. And in most cases, this compound has more advantages.

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

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: 56621-48-8, is researched, Molecular C10H14N2O, about Ordered Layered Dendrimers Constructed from Two Known Dendrimer Families: Inheritance and Emergence of Properties, the main research direction is triazine piperazine dendrimer; dendrimers; electrochemistry; phosphorus; piperazine; triazines.Category: ethers-buliding-blocks.

A new concept is presented, namely the synthesis of dendrimers intrinsically composed in alternation of building blocks pertaining to two known families of dendrimers: phosphorhydrazone dendrimers and triazine-piperazine dendrimers. These mixed dendrimers with layered controlled architecture inherit their easy 31P NMR characterization and their thermal stability from the phosphorhydrazone family, and their decreased solubility from the triazine-piperazine family. However, they have also their own and original characteristics. Both parent families are white powders, whereas the mixed dendrimers are yellow, orange, or red powders, depending on the generation. DFT calculations were carried out on model dendrons to understand these special color features. Remarkably, these dendrimers incorporating redox-active organic entities allow for the first time the monitoring of the growth of an organic dendrimer by electrochem. while highlighting an even-odd generation behavior.

After consulting a lot of data, we found that this compound(56621-48-8)Category: ethers-buliding-blocks can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-(Piperazin-1-yl)phenol, is researched, Molecular C10H14N2O, CAS is 56621-48-8, about 9α-Hydroxy-12-{[4-(4-hydroxyphenyl)piperazin-1-yl]methyl}-4,8-dimethyl-3,14-dioxatricyclo[9.3.0.02,4]tetradec-7-en-13-one.COA of Formula: C10H14N2O.

The title compound, C25H34N2O5, was synthesized from 9α-hydroxyparthenolide (9α-hydroxy-4,8-dimethyl-12-methylen-3,14-dioxa-tricyclo[9.3.0.02,4]tetradec-7-en-13-one), which in turn was isolated from the CHCl3 extract of the aerial parts of Anvillea radiata. Crystallog. data and at. coordinates are given. The mol. comprises a ten-membered ring fused to a five-membered ring with an addnl. epoxy ring system fused to the ten-membered ring. The five-membered ring also carries a 4-hydroxyphenyl-piperazin-1-ylmethyl substituent. The ten-membered ring adopts an approx. chair-chair conformation, while the piperazine ring displays a chair conformation and the five-membered ring shows an envelope conformation with the C atom closest to the hydroxy group forming the flap. Two C atoms in the Ph ring and the O atom of the hydroxyl group are disordered over two sites, with an occupancy ratio of 0.53(5):0.47(5). An intramol. O-H···N H-bond stabilizes the mol. conformation. In the crystal, C-H···O H bonds link the mols. into zigzag chains running along the a-axis direction.

After consulting a lot of data, we found that this compound(56621-48-8)COA of Formula: C10H14N2O can be used in many types of reactions. And in most cases, this compound has more advantages.

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

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: 73590-85-9, is researched, Molecular C17H19N3O2S, about High-performance liquid chromatographic assay for human liver microsomal omeprazole metabolism, the main research direction is omeprazole metabolism liver microsome determination HPLC; liquid chromatog omeprazole metabolite liver microsome.Computed Properties of C17H19N3O2S.

Assays for the measurement of omeprazole metabolites in plasma and urine were reported, but when applied to the determination of omeprazole metabolites formed by human liver microsomal incubations, there were obvious limitations in sensitivity. The present HPLC assay, which comprises extraction, evaporation and reconstitution, is several-fold more sensitive with a limit of detection of ∼ 2 pmol (2 nM in incubate) for omeprazole sulfone and 25 pmol (25 nM in incubate) for hydroxyomeprazole. Extraction efficiency is essentially quant. and is highly reproducible (coefficient of variation = 2.1% for both metabolites). The assay is linear over a wide range of concentrations and the formation of the metabolites is linear with respect to both time (to 15 min) and protein concentration (to 1.5 mg/mL). Two minor metabolites, 1 of which was identified tentatively as 5-O-desmethylomeprazole, were also formed by human liver microsomes and could be determined by this method. Preliminary studies of the formation of omeprazole sulfone and hydroxyomeprazole showed that the formation kinetics in human liver microsomes were biphasic for both metabolites, suggesting that at least 2 different cytochrome P 450 isoforms are involved in their formation.

After consulting a lot of data, we found that this compound(73590-85-9)Computed Properties of C17H19N3O2S can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Ibis, Cemil; Aydinli, Goeksin published an article about the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8,SMILESS:OC1=CC=C(N2CCNCC2)C=C1 ).Related Products of 56621-48-8. 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.

2-Nitro diene Cl2C:CClC(NO2):CCl2 reacted with 3-mercapto-1,2,4-triazole (I) and cyclohexanethiol to yield the resp. dithioacetals Cl2C:CClC(NO2):C(SR)R1 (II; R = 1,2,4-triazol-3-yl, cyclohexyl; R1 = SR). Dithioacetals II (R = 1,2,4-triazol-3-yl; R1 = octylthio, decylthio, hexdecylthio, cyclohexylthio) were obtained by reactions of appropriate vinyl sulfides with I. Novel N,S-substituted dienes were obtained by treatment of II [R = decyl, R1 = Cl (III)] with piperazines. Compound III was reacted with N-(2-aminoethyl)morpholine to give the corresponding N,S-substituted diene. Compound III gave a new N-butadienylhomopiperazine on reaction with homopiperazine in CH2Cl2. Compound II (R = cyclohexyl, R1 = cyclohexylthio) was characterized by single-crystal x-ray diffraction [monoclinic, space group P21/n, a 12.0862(12), b 11.1625(8), c 16.337(1) Å, β 110.840(4)°, V 2059.9(3) Å3, Z 4].

After consulting a lot of data, we found that this compound(56621-48-8)Related Products of 56621-48-8 can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Name: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four 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 Going Green in Process Chemistry: Optimizing an Asymmetric Oxidation Reaction To Synthesize the Antiulcer Drug Esomeprazole. Author is McAllister, Graeme D.; Parsons, Andrew F..

Sustainable practices in process chem. are highlighted by a novel, 9 wk team project of 8-12 students, in collaboration with AstraZeneca chemists, in an organic chem. laboratory Students synthesize the antiulcer medicine esomeprazole, which involves the asym. oxidation of pyrmetazole. To provide insight into the modern process chem. industry, they propose environmentally friendly modifications to the asym. oxidation Students first synthesize pyrmetazole and then follow a standard oxidation procedure and carry out modified, greener reactions of their choice. They investigate how a change in reaction conditions affects both the yield and enantioselectivity of esomeprazole. Pos. student feedback was received and student postlab reports were analyzed over a 4 yr period (2015-2018). Results consistently showed that the project provided students with the key tools to develop greener syntheses. This contextual approach not only offers the opportunity to develop valuable communication and team-working skills, but it also gives students creative input into their exptl. work. It teaches the important research skills involved in sustainable process chem., from reproducing and modifying a literature procedure to identifying green metrics.

After consulting a lot of data, we found that this compound(73590-85-9)Name: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Gao, Mei-Ling; Zeng, Jie; Fang, Xi; Luo, Jian; Jin, Zhen; Liu, Ya-Hong; Tang, You-Zhi published an article about the compound: 4-(Piperazin-1-yl)phenol( cas:56621-48-8,SMILESS:OC1=CC=C(N2CCNCC2)C=C1 ).Related Products of 56621-48-8. 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.

A series of pleuromutilin derivatives bearing piperazine ring have been reported. The in vitro antibacterial activities of the synthetic derivatives against MRSA (ATCC 43300), Staphylococcus aureus (ATCC 29213), Enterococcus faecalis (ATCC 29212), Enterococcus faecium (ATCC35667) and Escherichia coli (ATCC25922) were evaluated by the broth dilution method. Most of the synthesized derivatives displayed potent activities. Compounds 11c, 12a and 12c were found to be the most active antibacterial derivatives against MRSA (min. inhibitory concentration = 0.015 μg/mL). The binding of compounds 11c, 12a and 12c (I – III, resp.) to the 50s ribosome were investigated by mol. modeling. Compound 11c possessed lower binding free energy compared with compounds 12a and 12c. Compound 11c was further evaluated in MRSA systemic infection model and displayed superior in vivo efficacy to that of tiamulin.

After consulting a lot of data, we found that this compound(56621-48-8)Related Products of 56621-48-8 can be used in many types of reactions. And in most cases, this compound has more advantages.

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

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: 56621-48-8, is researched, Molecular C10H14N2O, about Naphthosultam derivatives: a new class of potent and selective 5-HT2 antagonists, the main research direction is naphtosultam preparation receptor binding; antagonist 5HT2 naphtosultam; naphthoisothiazole dioxide aminoalkyl.COA of Formula: C10H14N2O.

A series of 2-(aminoalkyl)naphtho[1,8-cd]isothiazole 1,1-dioxides I (R = aminoalkyl) was synthesized from I (R = H) and examined in various receptor binding tests. Most compounds demonstrated high affinity for the 5-HT2 receptor with moderate to high selectivity. A member of this series, compound I [R = 3-[4-(p-fluorophenyl)piperazino]propyl] (RP 62203), displays high 5-HT2 receptor affinity (Ki = 0.26 nM), which is resp. more than 100 and 1000 times higher than its affinity for α1 (Ki = 38 nM) and D2 (Ki >1000 nM) receptors. This compound is a potent orally effective and long lasting 5-HT2 antagonist in the mescaline-induced head-twitches test in mice and rats.

After consulting a lot of data, we found that this compound(56621-48-8)COA of Formula: C10H14N2O can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Seenivasaperumal, Muthu; Federsel, Hans-Jurgen; Szabo, Kalman J. 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 ).Name: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole. 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.

The asym. sulfoxidation reaction of imidazole-based prochiral sulfides was studied to explore the mechanistic details of the highly efficient esomeprazole process, which is one of the few industrial scale catalytic asym. procedures. The synthetic studies revealed that the smallest subunit governing the selectivity in the esomeprazole process is an imidazole ring. Thus, by using the esomeprazole procedure Me imidazole sulfide could be oxidized as efficiently as its several functionalized derivatives, including pyrmetazol. However, alkylation of the imidazole nitrogen led to a major drop of the enantioselectivity. Our atm. pressure chem. ionization-mass spectrometry (APCI/MS) studies indicate that addition of small amounts of water to the reaction mixture facilitates the formation of mononuclear titanium species, which are the active catalytic intermediates of the selective oxidation reaction. One of the most important features of the esomeprazole procedure is that amine additives increase the enantioselectivity of the oxidation process. The NMR studies of the presumed reaction intermediates show that under catalytic conditions the amines are able to coordinate to titanium and dissociate the coordinated imidazole substrate. The d. functional theory (DFT) modeling studies provided new insights in the mechanism of the asym. induction. It was found that the oxidation requires a lower activation energy if the imidazole sulfide precursor does not coordinate to titanium. Two possible reaction paths were explored for this out of sphere oxidation mechanism. The most important interaction governing the enantioselection is hydrogen bonding between the N-H of the imidazole ring and the chiral tartrate ligand on titanium. Furthermore, the oxidation reaction imposes an important structural constraint to the TS structure involving a linear arrangement of the peroxide oxygens and the sulfur atom. This constraint and the N coordination of imidazole leads to a very strained structure for the inner sphere mechanism of the oxidation, which leads to a much higher activation barrier than the corresponding out of sphere process, and therefore it is unlikely.

After consulting a lot of data, we found that this compound(73590-85-9)Name: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole can be used in many types of reactions. And in most cases, this compound has more advantages.

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