Tag: 100-200

Design, synthesis, and evaluation of compounds capable of reducing Pseudomonas aeruginosa virulence was written by Hossain, Mohammad Anwar;Sattenapally, Narsimha;Parikh, Hardik I.;Li, Wei;Rumbaugh, Kendra P.;German, Nadezhda A.. And the article was included in European Journal of Medicinal Chemistry in 2020.Name: 4-Chlororesorcinol The following contents are mentioned in the article:

Anti-virulence approaches in the treatment of Pseudomonas aeruginosa (PA)-induced infections have shown clin. potential in multiple in vitro and in vivo studies. However, development of these compounds is limited by several factors, including the lack of mols. capable of penetrating the membrane of gram-neg. organisms. Here, we report the identification of novel structurally diverse compounds that inhibit PqsR and LasR-based signaling and diminish virulence factor production and biofilm growth in two clin. relevant strains of P. aeruginosa. It is the first report where potential anti-virulent agents were evaluated for inhibition of several virulence factors of PA. Finally, co-treatment with these inhibitors significantly reduced the production of virulence factors induced by the presence of sub-inhibitory levels of ciprofloxacin. Further, we have analyzed the drug-likeness profile of designed compounds using quant. estimates of drug-likeness (QED) and confirmed their potential as hit mols. for further development. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Name: 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Name: 4-Chlororesorcinol

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Coumarin Grafted Polyethylene Matrix as Colorimetric and Fluorescent Chemosensor for Metal Ions was written by Vonlanthen, Mireille;Rojas-Montoya, Sandra M.;Cuetara-Guadarrama, Fabian;Martinez-Serrano, Ricardo D.;Burillo, Guillermina;Rivera, Ernesto. And the article was included in Macromolecular Chemistry and Physics in 2020.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

A coumarin-based chemosensor is synthesized and grafted onto a polyethylene (PE) surface by means of gamma radiation. The obtained polymeric film results to work as test-paper-like colorimetric sensor for the detection of Cu²⁺ ions. After immersion of the grafted PE film into a solution of Cu²⁺ in chloroform/methanol (8/2), a color change from colorless to green is observed by naked eye together with a quenching of the fluorescence emission. Control experiment with methoxy-grafted PE films shows no response after the immersion in the same Cu²⁺ solution The polymeric sensor can be washed and reused over several cycles for the detection of Cu²⁺. Moreover, the obtained polymeric sensor is used to detect Zn²⁺ by means of photoinduced electron transfer (PET) quenching disrupting mechanism. The fluorescence emission increases about three times after immersion in a solution containing Zn²⁺. A similar behavior is observed in the presence of acidic protons. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Category: chlorides-buliding-blocks).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Nickel-catalyzed allylic carbonylative coupling of alkyl zinc reagents with tert-butyl isocyanide was written by Weng, Yangyang;Zhang, Chenhuan;Tang, Zaiquan;Shrestha, Mohini;Huang, Wenyi;Qu, Jingping;Chen, Yifeng. And the article was included in Nature Communications in 2020.SDS of cas: 6294-17-3 The following contents are mentioned in the article:

By leveraging easily accessible tert-Bu isocyanide as the CO surrogate, a nickel-catalyzed allylic carbonylative coupling with alkyl zinc reagent RZnX (R = Me, n-Bu, Bn, cyclopentyl, 2-chloropyridin-5-yl, etc.; X = Br, Cl), allowing for the practical and straightforward preparation of synthetically important β,γ-unsaturated ketones R¹CH=C(R²)CH(R³)C(O)R (R¹ = n-Pr, Ph, cyclohexyl, furan-2-yl, etc.; R² = H, Me; R³ = H, Me, Et, cyclopropyl) in a linear-selective fashion with excellent trans-selectivity under mild conditions was described. Moreover, the undesired polycarbonylation process which is often encountered in palladium chem. could be completely suppressed. This nickel-based method features excellent functional group tolerance, even including the active aryl iodide functionality to allow the orthogonal derivatization of β,γ-unsaturated ketones. Preliminary mechanistic studies suggest that the reaction proceeds via π-allylnickel intermediate. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3SDS of cas: 6294-17-3).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.SDS of cas: 6294-17-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Azo-PROTAC: Novel Light-Controlled Small-Molecule Tool for Protein Knockdown was written by Jin, Yu-Hui;Lu, Meng-Chen;Wang, Yan;Shan, Wen-Xin;Wang, Xuan-Yu;You, Qi-Dong;Jiang, Zheng-Yu. And the article was included in Journal of Medicinal Chemistry in 2020.Computed Properties of C6H12BrCl The following contents are mentioned in the article:

Reversibly altering endogenous protein levels are persistent issues. Herein, we designed photoswitchable azobenzene-proteolysis targeting chimeras (Azo-PROTACs) by including azobenzene moieties between ligands for the E3 ligase and the protein of interest. Azo-PROTACs are light-controlled small-mol. tools for protein knockdown in cells. The light-induced configuration change can switch the active state to induce protein degradation activity, which can be reversely controlled by light exposure in intact cells. We compared the protein degradation abilities of Azo-PROTACs with different configurations and linker lengths. Using the stable form with the best degradation ability against the BCR-ABL fusion and ABL proteins in myelogenous leukemia K562 cells, we showed that Azo-PROTAC combines the potent protein knockdown and facile cell uptake properties of the small-mol. PROTAC with a reversible photoswitchability, offering a promising chem. knockdown strategy based on the light-induced reversible on/off properties. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Computed Properties of C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Computed Properties of C6H12BrCl

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electrochemistry of Ferrocene-Functionalized Phosphonium Ionic Liquids was written by Weaver, Joshua E. F.;Breadner, Daniel;Deng, Fanguo;Ramjee, Bala;Ragogna, Paul J.;Murray, Royce W.. And the article was included in Journal of Physical Chemistry C in 2011.Synthetic Route of C6H12BrCl The following contents are mentioned in the article:

The synthesis of and voltammetry in undiluted form of several ferrocene-functionalized phosphonium ionic liquids is reported. Electron transport in the mixed valent diffusion layer around an electrode occurs primarily by Fc^+/0 electron self-exchange reactions, as opposed to phys. diffusion of the ferrocenated phosphonium species. The apparent diffusion coefficients for electron transport and for the counterions of the ionic liquid, and in particular their activation energy barriers, are similar to one another, evidence for the control of rates of electron transport by relaxation of the counterion atm. For a net transport of electronic charge to accompany electron transfer, counterion displacement must occur to relax the charge displacement associated with the electron transfer. The ferrocenated phosphonium ionic liquids thus behave in a manner like that of previously studied redox ionic liquids based on combinations of redox groupings with imidazolium and with short-chain polyether functionalities. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Synthetic Route of C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Synthetic Route of C6H12BrCl

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electronic and Steric Optimization of Fluorogenic Probes for Biomolecular Imaging was written by Chyan, Wen;Kilgore, Henry R.;Gold, Brian;Raines, Ronald T.. And the article was included in Journal of Organic Chemistry in 2017.Application of 95-88-5 The following contents are mentioned in the article:

Fluorogenic probes are invaluable tools for spatiotemporal studies within live cells. In common fluorogenic probes, the intrinsic fluorescence of a small-mol. fluorophore is masked by esterification until entry into a cell, where endogenous esterases catalyze the hydrolysis of the masking groups, generating fluorescence. The susceptibility of masking groups to spontaneous hydrolysis is a major limitation of these probes. Previous attempts to address this problem have incorporated auto-immolative linkers at the cost of atom economy and synthetic adversity. Here, the authors report on a linker-free strategy that employs adventitious electronic and steric interactions in easy-to-synthesize probes. X···C:O n→π* interactions and acyl group size are optimized in 2′,7′-dichlorofluorescein diisobutyrate. This probe is relatively stable to spontaneous hydrolysis but is a highly reactive substrate for esterases both in vitro and in cellulo, yielding a bright, photostable fluorophore with utility in biomol. imaging. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Application of 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Application of 95-88-5

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Potent SARS-CoV-2 mRNA Cap Methyltransferase Inhibitors by Bioisosteric Replacement of Methionine in SAM Cosubstrate was written by Bobileva, Olga;Bobrovs, Raitis;Kanepe, Iveta;Patetko, Liene;Kalnins, Gints;Sisovs, Mihails;Bula, Anna L.;Grinberga, Solveiga;Boroduskis, Martins;Ramata-Stunda, Anna;Rostoks, Nils;Jirgensons, Aigars;Tars, Kaspars;Jaudzems, Kristaps. And the article was included in ACS Medicinal Chemistry Letters in 2021.Electric Literature of C6H9ClO3 The following contents are mentioned in the article:

Viral mRNA cap methyltransferases (MTases) are emerging targets for the development of broad-spectrum antiviral agents. In this work, we designed potential SARS-CoV-2 MTase Nsp14 and Nsp16 inhibitors by using bioisosteric substitution of the sulfonium and amino acid substructures of the cosubstrate S-adenosylmethionine (SAM), which serves as the Me donor in the enzymic reaction. The synthetically accessible target structures were prioritized using mol. docking. Testing of the inhibitory activity of the synthesized compounds showed nanomolar to submicromolar IC₅₀ values for 5 compounds To evaluate selectivity, enzymic inhibition of the human glycine N-methyltransferase involved in cellular SAM/SAH ratio regulation was also determined, which indicated that the discovered compounds are nonselective inhibitors of the studied MTases with slight selectivity for Nsp16. No cytotoxic effects were observed; however, this is most likely a result of the poor cell permeability of all evaluated compounds This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Electric Literature of C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Electric Literature of C6H9ClO3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Significantly enhancing the biocatalytic synthesis of chiral alcohols by semi-rationally engineering an anti-Prelog carbonyl reductase from Acetobacter sp. CCTCC M209061 was written by Wei, Ping;Guo, Ze-Wang;Wu, Xiao-Ling;Liang, Shan;Ou, Xiao-Yang;Xu, Pei;Zong, Min-Hua;Yang, Ji-Guo;Lou, Wen-Yong. And the article was included in Molecular Catalysis in 2019.Computed Properties of C6H9ClO3 The following contents are mentioned in the article:

Chiral alcs. and their derivatives are vital building blocks to synthesize pharmaceutical drugs and high-valued chems. Wild-type carbonyl reductase AcCR from Acetobacter sp. has ideal enantioselectivity toward 11 prochiral substrates (e.e.>99%) but poor activity. In this work, a semi-rational engineering was performed to enhance the activity of AcCR. Fortunately, three pos. double-mutants (mut-E144A/G152L, mut-G152L/Y189 N, and mut-I147 V/G152L) with specific activity 17-61 folds higher than that of enzyme without modified were achieved. Kinetic studies suggested that the catalytic efficiencies (k_cat/K_m) of these mutants were also well enhanced. Finally, these modified mut-AcCRs were successfully applied in asym. reductions of 11 structurally diverse prochiral substrates (200 mM) with excellent product yields (76.8%-99.1%) and enantiomeric excess (e.e.>99%), which provides an alternative strategy for efficient synthesis of chiral alcs. for pharmaceuticals industry with ideal yield and enantioselectivity. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Computed Properties of C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Computed Properties of C6H9ClO3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Exploring Mitochondria-Mediated Intrinsic Apoptosis by New Phytochemical Entities: An Explicit Observation of Cytochrome c Dynamics on Lung and Melanoma Cancer Cells was written by Arya, Jayadev S.;Joseph, Manu M.;Sherin, Daisy R.;Nair, Jyothi B.;Manojkumar, Thanathu K.;Maiti, Kaustabh K.. And the article was included in Journal of Medicinal Chemistry in 2019.Application of 638-07-3 The following contents are mentioned in the article:

Hydnocarpin (Hy) is a flavonoid isolated and purified from the seeds of Hydnocarpus wightiana Blume. Herein, we have developed a built-in semi-synthetic modification on Hy by one-pot multi-component reaction and a [3 + 2] cycloaddition strategy to append five membered isoxazole and isoxazolone as new phytochem. entities (NPCEs). Two selected NPCEs viz Hy-ISO-VIII and Hy-ISO-G from the library of 20 newly synthesized derivatives after in vitro screening unveiled promising cytotoxicity and induced caspase-mediated apoptosis against the human lung and melanoma cancer cells which were well supported by virtual screening based on ligand binding affinity and mol. dynamic simulations. As a new insight, we introduced surface-enhanced Raman spectroscopy to identify the chemo-marker mol. fingerprint to confirm the cellular uptake, cytochrome c release, and DNA fragmentation in a label-free manner. The present findings throw up a surfeit of seminal reasons behind the semi-synthetic modification of Hy, stepping forward to cancer chemotherapy. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Application of 638-07-3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Application of 638-07-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Design, synthesis, and evaluation of novel CXCR4 antagonists based on an aminoquinoline template was written by Lin, Yu;Li, Zhanhui;Xu, Chen;Xia, Kaijiang;Wu, Shuwei;Hao, Yongjin;Yang, Qing;Ma, Haikuo;Zheng, Jiyue;Luo, Lusong;Zhu, Fang;He, Sudan;Zhang, Xiaohu. And the article was included in Bioorganic Chemistry in 2020.Safety of Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

The chemokine receptor CXCR4 has been explored as a drug target due to its involvement in pathol. conditions such as HIV infection and cancer metastasis. Here we report the structure-activity relationship study of novel CXCR4 antagonists based on an aminoquinoline template. This template is devoid of the chiral center in the classical tetrahydroquinoline (THQ) ring moiety and therefore can be easily synthesized. A number of potent CXCR4 antagonists were identified, exemplified by compound 3(I), which demonstrated excellent binding affinity with CXCR4 receptor (IC₅₀ = 57 nM) and inhibited CXCL12 induced cytosolic calcium increase (IC₅₀ = 0.24 nM). Furthermore, compound 3 potently inhibited CXLC12/CXCR4 mediated cell migration in a transwell invasion assay. The simplified synthetic approach combined with good physicochem. properties (e.g. MW 362, clogP 2.1, PSA 48, pKa 7.0 for compound 3) demonstrate the potential of this aminoquinoline template as a novel scaffold to develop CXCR4 antagonists. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Safety of Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Safety of Ethyl 4-chloro-3-oxobutanoate

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics