Tag: 100-200

In 2018,Yamamoto, Takeshi; Murakami, Ryo; Komatsu, Satoko; Suginome, Michinori published 《Chirality-Amplifying, Dynamic Induction of Single-Handed Helix by Chiral Guests to Macromolecular Chiral Catalysts Bearing Boronyl Pendants as Receptor Sites》.Journal of the American Chemical Society published the findings.Formula: C9H11NO The information in the text is summarized as follows:

Helical chirality of poly(quinoxaline-2,3-diyl)s bearing a boronyl pendant at the 5-position of the quinoxaline ring was induced by condensation with chiral guests such as a diol, diamine, and amino alc. Reversible induction of a single-handed helical structure was achieved by using less than an equimolar amount of chiral amino alcs. to the boronyl pendants. Majority-rule-effect-based chiral amplification on the polyquinoxaline main chain was demonstrated with chiral amino alcs. with low enantiomeric excess (ee). The helical macromol. scaffold whose helicity was thus induced was utilized in palladium-catalyzed asym. silaboration of meso-methylenecyclopropane (up to 92% ee) by introducing (diarylphosphino)phenyl pendants at their side chains. In the experiment, the researchers used (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7Formula: C9H11NO)

(1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Formula: C9H11NO

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Schaus, Scott E.; Brandes, Bridget D.; Larrow, Jay F.; Tokunaga, Makoto; Hansen, Karl B.; Gould, Alexandra E.; Furrow, Michael E.; Jacobsen, Eric N. published an article on February 20 ,2002. The article was titled 《Highly Selective Hydrolytic Kinetic Resolution of Terminal Epoxides Catalyzed by Chiral (salen)CoIII Complexes. Practical Synthesis of Enantioenriched Terminal Epoxides and 1,2-Diols》, and you may find the article in Journal of the American Chemical Society.Recommanded Product: (1S)-1-(2-chlorophenyl)ethane-1,2-diol The information in the text is summarized as follows:

The hydrolytic kinetic resolution (HKR) of terminal epoxides catalyzed by a chiral (salen)CoIII complex affords both recovered unreacted epoxide and 1,2-diol product in highly enantioenriched form. As such, the HKR provides general access to useful, highly enantioenriched chiral building blocks that are otherwise difficult to access, from inexpensive racemic materials. The reaction has several appealing features from a practical standpoint, including the use of H2O as a reactant and low loadings (0.2-2.0 mol %) of a recyclable, com. available catalyst. In addition, the HKR displays extraordinary scope, as a wide assortment of sterically and electronically varied epoxides can be resolved to ≥99% ee. The corresponding 1,2-diols were produced in good-to-high enantiomeric excess using 0.45 equiv of H2O. Useful and general protocols are provided for the isolation of highly enantioenriched epoxides and diols, as well as for catalyst recovery and recycling. Selectivity factors (krel) were determined for the HKR reactions by measuring the product ee at ca. 20% conversion. In nearly all cases, krel values for the HKR exceed 50, and in several cases are well in excess of 200. The experimental part of the paper was very detailed, including the reaction process of (1S)-1-(2-chlorophenyl)ethane-1,2-diol(cas: 133082-13-0Recommanded Product: (1S)-1-(2-chlorophenyl)ethane-1,2-diol)

(1S)-1-(2-chlorophenyl)ethane-1,2-diol(cas: 133082-13-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The creation of a peptide bond to link two amino acids to make a protein removes the −OH from the carboxy group of one amino acid.Recommanded Product: (1S)-1-(2-chlorophenyl)ethane-1,2-diol

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In 2017,Alachouzos, Georgios; Lenselink, Eelke B.; Mulder-Krieger, Thea; de Vries, Henk; IJzerman, Adriaan P.; Louvel, Julien published 《Synthesis and evaluation of N-substituted 2-amino-4,5-diarylpyrimidines as selective adenosine A1 receptor antagonists》.European Journal of Medicinal Chemistry published the findings.Safety of trans-4-Aminocyclohexanol The information in the text is summarized as follows:

Aminodiarylpyrimidines such as I were prepared as potential selective adenosine A1 receptor antagonists, based on a scaffold with high affinity for human adenosine A1 receptors but limited selectivity over adenosine A2a receptors. The effect of aryl structure and amino group substituents on adenosine A1 receptor antagonism and selectivity was determined I was identified as a potent (Ki(hA1AR) = 7.7 nM) and selective (Ki(hA2AAR) = 1389 nM) antagonist at the human adenosine A1 receptor; mol. docking calculations at adenosine A1 and A2a receptors were used to rationalize the effect of the 4-hydroxycyclohexyl substituent on selectivity and the nature of the pyrimidine substituents on affinity. In the experiment, the researchers used trans-4-Aminocyclohexanol(cas: 27489-62-9Safety of trans-4-Aminocyclohexanol)

trans-4-Aminocyclohexanol(cas: 27489-62-9) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).Safety of trans-4-Aminocyclohexanol

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In 2019,Journal of Biomaterials Science, Polymer Edition included an article by Guo, Qianqian; Zhang, Xinge. Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol. The article was titled 《Synthesized of glucose-responsive nanogels labeled with fluorescence molecule based on phenylboronic acid by RAFT polymerization》. The information in the text is summarized as follows:

We reported on the fabrication of sugar-responsive nanogels covalently incorporated with 3-acrylamidophenylboronic acid (AAPBA) as glucose-recognizing moiety, 2-(acrylamido)glucopyranose (AGA) as biocompatible moiety, and boron dipyrromethene (BODIPYMA) as fluorescence donor mol. The p(AAPBA-AGA-BODIPYMA) nanogels were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization in the mixture solvents of H2O/ethanol. Nanogels could respond to glucose and size of nanogels increased after treating with 3 mg/mL glucose medium. The fluorescent intensity of nanogels varied dependent on different glucose concentrations Besides, insulin, a model drug, can be encapsulated into nanogels with the loading amount up to 8.2%. The drug release was dependent on the content of AAPBA moieties in nanogels and glucose concentrations in release medium. The investigation on the cytotoxicity of nanogels revealed that nanogels had good compatibility. Such glucose-responsive nanogels have potential in detection and treatment of diabetes. In the part of experimental materials, we found many familiar compounds, such as rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol)

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is oxidized in various tissues under either aerobic or anaerobic conditions through glycolysis; the oxidation reaction produces carbon dioxide, water, and ATP.Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

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Category: alcohols-buliding-blocksOn March 28, 2009, Xu, Yi; Jia, Xin; Panke, Sven; Li, Zhi published an article in Chemical Communications (Cambridge, United Kingdom). The article was 《Asymmetric dihydroxylation of aryl olefins by sequential enantioselective epoxidation and regioselective hydrolysis with tandem biocatalysts》. The article mentions the following:

Chiral aryl vicinal diols were obtained in high ee and yield by asym. dihydroxylation of aryl olefins with tandem biocatalysts, an enantioselective styrene monooxygenase, and a regioselective epoxide hydrolase.(1S)-1-(2-chlorophenyl)ethane-1,2-diol(cas: 133082-13-0Category: alcohols-buliding-blocks) was used in this study.

(1S)-1-(2-chlorophenyl)ethane-1,2-diol(cas: 133082-13-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.Category: alcohols-buliding-blocks

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《Sea buckthorn extract loaded into solid lipid nanoparticles》 was published in Molecular Crystals and Liquid Crystals in 2019. These research results belong to Manea-Saghin, Ana-Maria; Marin, Cosmina Andreea. Recommanded Product: rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol The article mentions the following:

The sea buckthorn extract used for this study was obtained from dry sea buckthorn berries. The aim of this study was to synthesize by high shear homogenization method and to characterize new solid lipid nanoparticles loaded with sea buckthorn extract, nanoparticles which show high antioxidant activity. The obtained solid lipid nanoparticles have been firstly characterized by particle diameter and phys. stability using dynamic light scattering method. The particle morphol. was examined by transmission electron microscopy and the properties of sea buckthorn extract-loaded nanoparticles have been evaluated by an appropriate in vitro anal. (chemiluminescence method). The antimicrobial properties of newly developed nano-materials were also evaluated. In addition to this study using rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol, there are many other studies that have used rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Recommanded Product: rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol) was used in this study.

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is oxidized in various tissues under either aerobic or anaerobic conditions through glycolysis; the oxidation reaction produces carbon dioxide, water, and ATP.Recommanded Product: rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

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Related Products of 627-18-9In 2021 ,《Synthesis of novel acyl derivatives of 3-(4,5,6,7-tetrabromo-1H-benzimidazol-1-yl)propan-1-ols-intracellular TBBi-based CK2 inhibitors with proapoptotic properties》 was published in International Journal of Molecular Sciences. The article was written by Chojnacki, Konrad; Winska, Patrycja; Karatsai, Olena; Koronkiewicz, Miroslawa; Milner-Krawczyk, Malgorzata; Wielechowska, Monika; Redowicz, Maria Jolanta; Bretner, Maria; Borowiecki, Pawel. The article contains the following contents:

Protein kinase CK2 has been considered as an attractive drug target for anti-cancer therapy. The synthesis of N-hydroxypropyl TBBi and 2MeTBBi derivatives as well as their resp. esters was carried out by using chemoenzymic methods. Concomitantly with kinetic studies toward recombinant CK2, the influence of the obtained compounds on the viability of two human breast carcinoma cell lines (MCF-7 and MDA-MB-231) was evaluated using MTT assay. Addnl., an intracellular inhibition of CK2 as well as an induction of apoptosis in the examined cells after the treatment with the most active compounds were studied by Western blot anal., phase-contrast microscopy and flow cytometry method. The results of the MTT test revealed potent cytotoxic activities for most of the newly synthesized compounds (EC50 4.90 to 32.77 μM), corresponding to their solubility in biol. media. We concluded that derivatives with the Me group decrease the viability of both cell lines more efficiently than their non-methylated analogs. Furthermore, inhibition of CK2 in breast cancer cells treated with the tested compounds at the concentrations equal to their EC50 values correlates well with their lipophilicity since derivatives with higher values of logP are more potent intracellular inhibitors of CK2 with better proapoptotic properties than their parental hydroxyl compounds After reading the article, we found that the author used 3-Bromopropan-1-ol(cas: 627-18-9Related Products of 627-18-9)

3-Bromopropan-1-ol(cas: 627-18-9) is used in the synthesis of fluorescent halide-sensitive quinolinium dyes, chiral, quaternary prolines through cyclization of quaternary amino acids and molten salt-polymers. It is utilized for the study of micellar media and in microemulsions based on cationic or a nonionic surfactant by reacting with phenols.Related Products of 627-18-9

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Name: 3-Bromopropan-1-olIn 2021 ,《How to Choose a Secondary Interaction to Improve Stretchability of Associative Polymers?》 was published in Macromolecules (Washington, DC, United States). The article was written by Yang, Huanhuan; Wu, Shilong; Chen, Quan. The article contains the following contents:

This study focuses on the stretchability of brittle ionomers after introducing three types of hydrogen bonds, i.e., dual, triple, and quadruple hydrogen bonds. The introduction of dual or triple hydrogen bonds that are weaker than the ionic association improves the stretchability, and better improvement has been achieved for the triple hydrogen bonds. In comparison, the introduction of quadruple hydrogen bonds that are equally strong as the ionic association does not show this type of improvement. This result strongly indicates that there is an optimized strength ratio between the first (the stronger ionic) network and the secondary (the weaker hydrogen-bonding) network, i.e., the secondary network should be considerably weaker but still not too weaker than the first network. When this condition is satisfied, continuous dissociation and association of the secondary network weaken the chain retraction after the strain-induced breakup of the first network, thereby suppressing the formation of defects or microscopic cracks that potentially grow into the macroscopic fracture. In addition to this study using 3-Bromopropan-1-ol, there are many other studies that have used 3-Bromopropan-1-ol(cas: 627-18-9Name: 3-Bromopropan-1-ol) was used in this study.

3-Bromopropan-1-ol(cas: 627-18-9) is used in the synthesis of fluorescent halide-sensitive quinolinium dyes, chiral, quaternary prolines through cyclization of quaternary amino acids and molten salt-polymers. It is utilized for the study of micellar media and in microemulsions based on cationic or a nonionic surfactant by reacting with phenols.Name: 3-Bromopropan-1-ol

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Safety of (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-olIn 2022 ,《Stereoselective Helix-Sense-Selective Cationic Polymerization of N-Vinylcarbazole Using Chiral Lewis Acid Catalysis》 was published in Journal of the American Chemical Society. The article was written by Sorensen, Cole C.; Leibfarth, Frank A.. The article contains the following contents:

Helical polymers with a defined main-chain atropoisomeric conformation are important materials in high value applications such as nonlinear optics and chiral separations Currently, no methods exist for the cationic helix-sense-selective polymerization of prochiral vinyl monomers, which limits access to a number of potentially valuable optically active helical polymers. Here, we demonstrate the first stereoselective cationic helix-sense-selective polymerization of a prochiral vinyl monomer, which provides access to optically active helixes of poly(N-vinylcarbazole). Chiral bis(oxazoline)-scandium Lewis acids serve as chiral counterions to polymerize N-vinylcarbazole into highly isotactic (up to 94% meso triads) polymers. Mechanistic investigations uncovered the distinct phenomenon that are responsible for independent control of conformational (i.e., helicity) and configurational (i.e., tacticity) stereochem. Polymer helicity was strongly influenced by the stereoselectivity of the first monomer propagation, whereas polymer tacticity was dictated by the thermodynamically controlled conformation of the growing polymer chain end. Overall, this method expands the suite of accessible helical polymers through helix-sense-selective polymerization and provides mechanistic insight into how polymer tacticity and helicity can be controlled independently. The experimental process involved the reaction of (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7Safety of (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol)

(1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7) belongs to anime. Milder oxidation, using reagents such as NaOCl, can remove four hydrogen atoms from primary amines of the type RCH2NH2 to form nitriles (R―C≡N), and oxidation with reagents such as MnO2 can remove two hydrogen atoms from secondary amines (R2CH―NHR′) to form imines (R2C=NR′). Tertiary amines can be oxidized to enamines (R2C=CHNR2) by a variety of reagents.Safety of (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol

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SDS of cas: 100-55-0In 2021 ,《Synthesis of bioactive quinoline acting as anticancer agents and their mode of action using in silico analysis towards Aurora kinase A inhibitors》 appeared in Chemical Data Collections. The author of the article were Narasimhamurthy, Kereyagalahally H.; Guruswamy, Dileep Kumar M.; Chandra; Kallesha, Nichhapurada; Basappa; Rangappa, Kanchugarakoppal S.. The article conveys some information:

In the present investigation, novel quinolines have been synthesized and analyzed for their invitro cytotoxic activity against human colon cancer and lung cancer cells. Among the newly synthesized quinoline derivatives, 2-(3-chlorophenyl)-6,7-dimethoxyquinoline (Q6) showed considerable cytotoxic activity against human colon cancer (HCT116) and lung cancer (A549) cell lines with IC50 values of 25.5 ± 2.7 and 32 ± 4.7 μM resp. Since these quinolines interacted with an Aurora kinase A, we carried out the mol. docking investigation and observed that this quinoline displayed inhibitory potentials. Overall, the compound Q6 was well suited to develop a newer quinolines-based anticancer medication, especially to block cell cycle arrest through Aurora kinase A inhibitors in human cancer.3-Pyridinemethanol(cas: 100-55-0SDS of cas: 100-55-0) was used in this study.

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. Pyridine and pyridine-derived structures are privileged pharmacophores in medicinal chemistry and an essential functionality for organic chemists. As the prototypical π-deficient heterocycle, pyridine illustrates distinctive chemistry as both substrate and reagent. SDS of cas: 100-55-0

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