Month: December 2022

Chamberlain, K. published the artcileStudies on plant growth-regulating substances. LV. The plant growth-promoting properties of some β-aryl-propionic acids, SDS of cas: 51656-68-9, the publication is Annals of Applied Biology (1978), 90(1), 115-19, database is CAplus.

Of 17β-arylpropionic acids prepared and tested for their plant growth-regulating activity in wheat coleoptile, pea segment, and pea curvature tests, the following compounds were among the most active: β-(4-fluorophenyl) [459-31-4], β-(2,4-dichlorophenyl) [55144-92-8], and β-(2,6-dichlorophenyl)propionic acid [51656-68-9]. Of 4 other compounds of the general formula I (X = CH₂, O, NH, or S) which were also tested in this study, 2,4-D (I; X = O) [94-75-7] was generally the most active.

Annals of Applied Biology published new progress about 51656-68-9. 51656-68-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene, name is 3-(2,6-Dichlorophenyl)propanoic acid, and the molecular formula is C9H8Cl2O2, SDS of cas: 51656-68-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Oechsner, Regina M. published the artcileAcetate Facilitated Nickel Catalyzed Coupling of Aryl Chlorides and Alkyl Thiols, HPLC of Formula: 637-07-0, the publication is ACS Catalysis (2022), 12(4), 2233-2243, database is CAplus.

A mild, fast, and convenient catalytic system for the coupling of aryl chlorides RCl (R = Ph, pyridin-3-yl, benzodioxol-5-yl, etc.) with primary, secondary, as well as previously challenging tertiary alkyl thiols R¹SH (R¹ = heptyl, cyclohexyl, adamantan-1-yl, etc.) uses an air-stable nickel(II) precatalyst in combination with the low-cost base potassium acetate at room temperature The catalytic system tolerates a variety of functional groups and enables the generation of thioethers for a wide range of substrates, including pharmaceutical compounds RSR¹ in excellent yields. Chemoselective functionalization of disubstituted substrates was demonstrated. Kinetic and NMR studies, as well as DFT computations support a Ni(0)/Ni(II) catalytic cycle and identify the oxidative addition product as the resting state. Acetate coordination and subsequent acetate facilitated the formation of a thiolate complex via internal deprotonation and play a key role in the catalytic cycle.

ACS Catalysis published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, HPLC of Formula: 637-07-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Tayade, D. T. published the artcileDesign, synthesis, characterization and anti-microbial screening of some novel thiocarbamidochalcones, Quality Control of 3696-23-9, the publication is American Journal of PharmTech Research (2016), 6(3), 605-612, database is CAplus.

Interactions of (2E)-1-(4-chlorophenyl)-3-(3,4 dimethoxyphenyl)prop-2-en-1-one with various substituted thioureas such as thiourea, N-phenylthiourea, 2-chlorophenylthiourea, 3-chlorophenylthiourea and 4-chlorophenylthiourea in presence of isopropanol as a medium. The products isolated in these reactions were characterized on the basis of conventional elemental anal., chem. characteristics and spectral data. All the synthesized compounds screened against various microorganisms such as gram pos. Staphylococcus aureus, gram-neg. Escherichia coli. Ciprofloxacin was used as a standard drug for the antimicrobial screening.

American Journal of PharmTech Research published new progress about 3696-23-9. 3696-23-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Thiourea,Amine,Benzene,Amide, name is 1-(4-Chlorophenyl)thiourea, and the molecular formula is C6H4ClNO2, Quality Control of 3696-23-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Xu, Ming published the artcileInsecticidal quinoline and isoquinoline isoxazolines, Recommanded Product: 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene, the publication is Bioorganic & Medicinal Chemistry Letters (2014), 24(16), 4026-4030, database is CAplus and MEDLINE.

A series of quinoline and isoquinoline isoxazolines have been designed as pesticides for crop protection. Herein we reported the chem. synthesis, biol. activity and structure-activity relationships. The isoquinoline derivative, such as I, is discovered as potent new class of isoxazoline insecticide which is competitive with com. insecticide indoxacarb.

Bioorganic & Medicinal Chemistry Letters published new progress about 864725-22-4. 864725-22-4 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Alkenyl,Benzene, name is 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene, and the molecular formula is C44H28ClFeN4, Recommanded Product: 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Seibold, Uwe published the artcileRational Design, Development, and Stability Assessment of a Macrocyclic Four-Hydroxamate-Bearing Bifunctional Chelating Agent for ⁸⁹Zr, Product Details of C19H14Cl2, the publication is ChemMedChem (2017), 12(18), 1555-1571, database is CAplus and MEDLINE.

Zirconium-89 is a positron-emitting radionuclide of high interest for medical imaging applications with positron emission tomog. (PET). For the introduction of this radiometal into biol. active targeting vectors, the chelating agent desferrioxamine B (DFO) is commonly applied. However, DFO is known to form ⁸⁹Zr complexes of limited in vivo stability. Herein we describe the rational design and chem. development of a new macrocyclic four-hydroxamate-bearing chelating agent-1,10,19,28-tetrahydroxy-1,5,10,14,19,23,28,32-octaazacyclohexatriacontan-2,6,11,15,20,24,29,33-octaone (CTH36)-for the stable complexation of Zr⁴⁺. For this purpose, we first performed computational studies to determine the optimal chelator geometry before we developed different synthesis pathways toward the target structures. The best results were obtained using an efficient solution-phase-based synthesis strategy toward the target chelating agent. To enable efficient and chemoselective conjugation to biomols., a tetrazine-modified variant of CTH36 was also developed. The excellent conjugation characteristics of the so-functionalized chelator were demonstrated on the example of the model peptide TCO-c(RGDfK). We determined the optimal ⁸⁹Zr radiolabeling parameters for CTH36 as well as its bioconjugate, and found that ⁸⁹Zr radiolabeling proceeds efficiently under very mild reaction conditions. Finally, we performed comparative complex stability tests for ⁸⁹Zr-CHT36-c(RGDfK) and ⁸⁹Zr-DFO-c(RGDfK), showing improved complex stability for the newly developed chelator CTH36.

ChemMedChem published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C8H7NO4, Product Details of C19H14Cl2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Borovska, Jirina published the artcileAccess of inhibitory neurosteroids to the NMDA receptor, Category: chlorides-buliding-blocks, the publication is British Journal of Pharmacology (2012), 166(3), 1069-1083, database is CAplus and MEDLINE.

Background and Purpose: NMDA receptors are glutamatergic ionotropic receptors involved in excitatory neurotransmission, synaptic plasticity and excitotoxic cell death. Many allosteric modulators can influence the activity of these receptors pos. or neg., with behavioral consequences. 20-Oxo-5β-pregnan-3α-yl sulfate (pregnanolone sulfate; PA-6) is an endogenous neurosteroid that inhibits NMDA receptors and is neuroprotective. The authors tested the hypothesis that the interaction of PA-6 with the plasma membrane is critical for its inhibitory effect at NMDA receptors. Exptl. Approach: Electrophysiol. recordings and live microscopy were performed on heterologous HEK293 cells expressing GluN1/GluN2B receptors and cultured rat hippocampal neurons. Key Results: The authors’ experiments showed that the kinetics of the steroid inhibition were slow and not typical of drug-receptor interaction in an aqueous solution In addition, the recovery from steroid inhibition was accelerated by β- and γ-cyclodextrin. Values of IC₅₀ assessed for novel synthetic C3 analogs of PA-6 differed by more than 30-fold and were pos. correlated with the lipophilicity of the PA-6 analogs. Finally, the onset of inhibition induced by C3 analogs of PA-6 ranged from use-dependent to use-independent. The onset and offset of cell staining by fluorescent analogs of PA-6 were slower than those of steroid-induced inhibition of current responses mediated by NMDA receptors. Conclusion and Implications: The authors conclude that steroid accumulation in the plasma membrane is the route by which it accesses a binding site on the NMDA receptor. Thus, the authors’ results provide a possible structural framework for pharmacol. targeting the transmembrane domains of the receptor.

British Journal of Pharmacology published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Carcache, David A. published the artcileOptimizing a Weakly Binding Fragment into a Potent RORγt Inverse Agonist with Efficacy in an in Vivo Inflammation Model, Application of 3-Chloro-4-fluoronitrobenzene, the publication is Journal of Medicinal Chemistry (2018), 61(15), 6724-6735, database is CAplus and MEDLINE.

The transcription factor RORγt is an attractive drug-target due to its role in the differentiation of IL-17 producing Th17 cells that play a critical role in the etiopathol. of several autoimmune diseases. Identification of starting points for RORγt inverse agonists with good properties has been a challenge. We report the identification of a fragment hit and its conversion into a potent inverse agonist through fragment optimization, growing and merging efforts. Further anal. of the binding mode revealed that inverse agonism was achieved by an unusual mechanism. In contrast to other reported inverse agonists, there is no direct interaction or displacement of helix 12 observed in the crystal structure. Nevertheless, compound 9 proved to be efficacious in a delayed-type hypersensitivity (DTH) inflammation model in rats.

Journal of Medicinal Chemistry published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C6H3ClFNO2, Application of 3-Chloro-4-fluoronitrobenzene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Szeto, Judy published the artcileMulti-step continuous flow synthesis of fluconazole, Related Products of chlorides-buliding-blocks, the publication is Journal of Flow Chemistry (2019), 9(1), 35-42, database is CAplus.

The development of a flow chem. approach to the anti-fungal fluconazole is described. A continuous, two-reactor, three-step synthesis of fluconazole from 2-chloro-2′,4′-difluoroacetophenone was achieved with no intermediate purification The synthesis has been successfully demonstrated on a Vaportec com. flow chem. system.

Journal of Flow Chemistry published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C10H16O2, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Kovalchuk, Valentine published the artcileNaturally drug-loaded chitin: isolation and applications, Category: chlorides-buliding-blocks, the publication is Marine Drugs (2019), 17(10), 574, database is CAplus and MEDLINE.

Naturally occurring three-dimensional (3D) biopolymer-based matrixes that can be used in different biomedical applications are sustainable alternatives to various artificial 3D materials. For this purpose, chitin-based structures from marine sponges are very promising substitutes. Marine sponges from the order Verongiida (class Demospongiae) are typical examples of demosponges with well-developed chitinous skeletons. In particular, species belonging to the family Ianthellidae possess chitinous, flat, fan-like fibrous skeletons with a unique, microporous 3D architecture that makes them particularly interesting for applications. In this work, we focus our attention on the demosponge Ianthella flabelliformis (Linnaeus, 1759) for simultaneous extraction of both naturally occurring (“ready-to-use”) chitin scaffolds, and biol. active bromotyrosines which are recognized as potential antibiotic, antitumor, and marine antifouling substances. We show that selected bromotyrosines are located within pigmental cells which, however, are localized within chitinous skeletal fibers of I. flabelliformis. A two-step reaction provides two products: treatment with methanol extracts the bromotyrosine compounds bastadin 25 and araplysillin-I N20 sulfamate, and a subsequent treatment with acetic acid and sodium hydroxide exposes the 3D chitinous scaffold. This scaffold is a mesh-like structure, which retains its capillary network, and its use as a potential drug delivery biomaterial was examined for the first time. The results demonstrate that sponge-derived chitin scaffolds, impregnated with decamethoxine, effectively inhibit growth of the human pathogen Staphylococcus aureus in an agar diffusion assay.

Marine Drugs published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C38H74Cl2N2O4, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics