Month: December 2022

Wu, Yun published the artcileDiscovery of 2-(4-Chloro-3-(trifluoromethyl)phenyl)-N-(4-((6,7-dimethoxyquinolin-4-yl)oxy)phenyl)acetamide (CHMFL-KIT-64) as a Novel Orally Available Potent Inhibitor against Broad-Spectrum Mutants of c-KIT Kinase for Gastrointestinal Stromal Tumors, Safety of 3-Chloro-4-fluoronitrobenzene, the publication is Journal of Medicinal Chemistry (2019), 62(13), 6083-6101, database is CAplus and MEDLINE.

Starting from our previously developed c-KIT kinase inhibitor CHMFL-KIT-8140, through a type II kinase inhibitor binding element hybrid design approach, we discovered a novel c-KIT kinase inhibitor compound 18 (CHMFL-KIT-64), which is potent against c-KIT wt and a broad spectrum of drug-resistant mutants with improved bioavailability. 18 exhibits single-digit nM potency against c-KIT kinase and c-KIT T670I mutants in the biochem. assay and displays great potencies against most of the gain-of-function mutations in the juxtamembrane domain, drug-resistant mutations in the ATP binding pocket (except V654A), and activation loops (except D816V). In addition, 18 exhibits a good in vivo pharmacokinetic (PK) profile in different species including mice, rats, and dogs. It also displays good in vivo antitumor efficacy in the c-KIT T670I, D820G, and Y823D mutant-mediated mice models as well as in the c-KIT wt patient primary cells which are known to be imatinib-resistant. The potent activity against a broad spectrum of clin. important c-KIT mutants combining the good in vivo PK/pharmacodynamic properties of 18 indicates that it might be a new potential therapeutic candidate for gastrointestinal stromal tumors.

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 C7H15NO, Safety of 3-Chloro-4-fluoronitrobenzene.

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

Vaz, Frédéric M published the artcileCarnitine biosynthesis in mammals., Application In Synthesis of 6249-56-5, the publication is The Biochemical journal (2002), 361(Pt 3), 417-29, database is MEDLINE.

Carnitine is indispensable for energy metabolism, since it enables activated fatty acids to enter the mitochondria, where they are broken down via beta-oxidation. Carnitine is probably present in all animal species, and in numerous micro-organisms and plants. In mammals, carnitine homoeostasis is maintained by endogenous synthesis, absorption from dietary sources and efficient tubular reabsorption by the kidney. This review aims to cover the current knowledge of the enzymological, molecular, metabolic and regulatory aspects of mammalian carnitine biosynthesis, with an emphasis on the human and rat.

The Biochemical journal 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 C6H4ClNO2, Application In Synthesis of 6249-56-5.

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

Chen, Suming published the artcileMass Spectrometry for Paper-Based Immunoassays: Toward On-Demand Diagnosis, SDS of cas: 6249-56-5, the publication is Journal of the American Chemical Society (2016), 138(20), 6356-6359, database is CAplus and MEDLINE.

Current anal. methods, either point-of-care or centralized detection, are not able to meet recent demands of patient-friendly testing and increased reliability of results. Here, the authors describe a two-point separation on-demand diagnostic strategy based on a paper-based mass spectrometry immunoassay platform that adopts stable and cleavable ionic probes as mass reporter; these probes make possible sensitive, interruptible, storable, and restorable on-demand detection. In addition, a new touch paper spray method was developed for on-chip, sensitive, and cost-effective analyte detection. This concept is successfully demonstrated via (i) the detection of Plasmodium falciparum histidine-rich protein 2 antigen and (ii) multiplexed and simultaneous detection of cancer antigen 125 and carcinoembryonic antigen.

Journal of the American Chemical Society 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, SDS of cas: 6249-56-5.

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

Li, Xiuyun published the artcileSynthesis and fungicidal activities of biaryl methanone o-benzyl oximes, Product Details of C6H4ClNO2, the publication is Gaodeng Xuexiao Huaxue Xuebao (2015), 36(12), 2415-2420, database is CAplus.

To discover new strobilurin analogs with high pesticidal activity, 11 novel methoxy acrylates bearing biaryl methanone oxime ether moieties were synthesized from aroyl pyridines, and characterized by ¹H and ¹³C NMR and HRMS. In vitro fungicidal evaluation indicated that all of the target compounds exhibited excellent activities against tested seven phytopathogenic fungi, and compounds I (R = H, R₁ = 3-Cl-4-Me) and I (R = H, R₁ = 2,3-Cl)displayed comparable overall activities to azoxystrobin and trifloxystrobin. Some of the target compounds also exhibited excellent in vivo control effects at 400 mg/L, for example, compound I (R = H, R₁ = 4-t-Bu) could 100% control wheat powdery mildew and cucumber anthracnose. Furthermore, at 25 mg/L, these compounds, including control agents, completely inhibited spores germination of rice blast, but no effect at all for cucumber gray mold. These results suggested that this class of compounds might deserve to be developed as new potential agricultural fungicides.

Gaodeng Xuexiao Huaxue Xuebao published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, Product Details of C6H4ClNO2.

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

Pieroni, Marco published the artcileDesign, synthesis and investigation on the structure-activity relationships of N-substituted 2-aminothiazole derivatives as antitubercular agents, Name: 1-(4-Chlorophenyl)thiourea, the publication is European Journal of Medicinal Chemistry (2014), 26-34, database is CAplus and MEDLINE.

Tuberculosis (TB) is one of the deadliest infectious diseases of all times, and its recent resurgence is a supreme matter of concern. Co-infection with HIV and, in particular, the continuous isolation of new resistant strains, makes the discovery of novel anti-TB agents a strategic priority. The research of novel agents should be driven by the accessibility of the synthetic procedure and, in particular, by the lack of cross-resistance with the drugs already marketed. Moreover, in order to shorten the duration of the therapy, and therefore decrease the rate of resistance, these mols. should be active also against the nonreplicating persistent form (NRP-TB) of the infection. The availability of an inhouse small library of compounds prompted us to investigate their anti-TB activity. Two compounds, embodying a 2-aminothiazole scaffold, were found to possess a certain inhibitory activity toward Mycobacterium tuberculosis H₃₇Rv, and therefore a medicinal chem. campaign was initiated in order to increase the activity of the hit compounds and, especially, construct a plausible body of structure-activity relationships. The potency of the hit compound was successfully improved, and, much more importantly, some of the mols. synthesized were found to be active toward the persistent phenotype, and, also, toward a panel of resistant strains. These findings encourage further investigations around this interesting antitubercular chemotype.

European Journal of Medicinal Chemistry 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 C7H7ClN2S, Name: 1-(4-Chlorophenyl)thiourea.

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

Kemper, Jerome M. published the artcileQuaternary Amines As Nitrosamine Precursors: A Role for Consumer Products?, Related Products of chlorides-buliding-blocks, the publication is Environmental Science & Technology (2010), 44(4), 1224-1231, database is CAplus and MEDLINE.

Nitrosamine formation has been associated with wastewater-impacted waters, but specific precursors within wastewater effluents have not been identified. Experiments indicated that nitrosamines form in low yields from quaternary amines, and that the nitrosamines form from the quaternary amines themselves, not just lower order amine impurities. Polymeric and benzylated quaternary amines were more potent precursors than monomeric quaternary alkylamines. Pretreatment of quaternary amines with ozone or free Cl, which deactivate lower order amine impurities, did not significantly reduce nitrosamine formation. The nitrosamine formation pathway is unclear but experiments indicated that transformation of quaternary amines to lower order amine precursors via Hofmann elimination was not involved. Experiments suggest that the pathway may involve quaternary amine degradation by amidogen or chloramino radicals formed from chloramines. Quaternary amines are significant constituents of consumer products, including shampoos, detergents, and fabric softeners. Although quaternary amines may be removed by sedimentation during wastewater treatment, their importance should be evaluated on a case-by-case basis. The high loadings from consumer products may enable the portion not removed to serve as precursors.

Environmental Science & Technology published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, Related Products of chlorides-buliding-blocks.

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

Subasinghe, Nalin L. published the artcileA novel series of pyrazolylpiperidine N-type calcium channel blockers, HPLC of Formula: 871332-95-5, the publication is Bioorganic & Medicinal Chemistry Letters (2012), 22(12), 4080-4083, database is CAplus and MEDLINE.

Selective blockers of the N-type calcium channel have proven to be effective in animal models of chronic pain. However, even though intrathecally delivered synthetic ω-conotoxin MVIIA from Conus magnus (ziconotide [Prialt]) has been approved for the treatment of chronic pain in humans, its mode of delivery and narrow therapeutic window have limited its usefulness. Therefore, the identification of orally active, small-mol. N-type calcium channel blockers would represent a significant advancement in the treatment of chronic pain. A novel series of pyrazole-based N-type calcium channel blockers was identified by structural modification of a high-throughput screening hit and further optimized to improve potency and metabolic stability. In vivo efficacy in rat models of inflammatory and neuropathic pain was demonstrated by a representative compound from this series.

Bioorganic & Medicinal Chemistry Letters published new progress about 871332-95-5. 871332-95-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is (4-Chloro-3-cyanophenyl)boronic acid, and the molecular formula is C5H11NO2S, HPLC of Formula: 871332-95-5.

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

Christianson, Donald D. published the artcileSeparation and determination of quaternary nitrogen compounds and other nitrogenous substances by ion-exchange chromatography. Application to analysis of corn extracts, HPLC of Formula: 6249-56-5, the publication is Anal. Chem. (1960), 874-8, database is CAplus.

cf. preceding abstract A known mixture of quaternary N compounds (q.n.c.) (including carnitine, choline, betaine, trigonelline, thiamine, γ-butyrobetaine, and stachydrine) and certain related amines and amino acids were separated on a column of the acid form of Dowex-50W with increasing concentrations of aqueous HCl as the eluant (CA 47, 11348i). Recovery was quant. for all q.n.c. except N-methylnicotinamide and ergothioneine. The procedure was applied to an aqueous concentrate from a 80% EtOH extraction of whole corn grain. From this were characterized and determined 3 of q.n.c., 16 amino acids and amides, and one purine. In order of decreasing amounts: asparagine, choline, alanine, and γ-aminobutyric acid were the major free N compounds found. Two of the substances, if not others, originally present in the corn extract were altered during the separation process by acid hydrolysis. It is suggested that this separation technique can be used to fractionate as little as 300 γ of each q.n.c. for routine analysis.

Anal. Chem. 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, HPLC of Formula: 6249-56-5.

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

Christianson, D. D. published the artcileChromatography of quaternary nitrogen compounds on buffered cation-exchange resins, Application In Synthesis of 6249-56-5, the publication is Journal of Chromatography (1963), 432-8, database is CAplus and MEDLINE.

Betaines and other naturally occurring quaternary N compounds were detected and determined by a modification of the method of W., et al. (CA 54, 18198b) based on ultraviolet absorbance by their periodides. Columns used were uniformly sized, pulverized, sulfonated polystyrene resin, with Na citrate buffers of pH 2.2, 3.25, and 4.25 for elution. Better separation of betaine, stachydrine, choline, trigoneltine, N-methylnicotinamide, and carnitine was obtained with these eluents than with HCl because of greater differences in degrees of ionization in the buffer system. Corn-grain extracts were separated in 2 days into trigonelline, choline, and an unknown substance yielding a periodide derivative

Journal of Chromatography 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, Application In Synthesis of 6249-56-5.

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

Almasi, Miroslav published the artcileA novel approach to achieve molecular switching in solid-state driving by thermal treatment: A photochromic zinc-coordination polymer, SDS of cas: 219537-97-0, the publication is Inorganica Chimica Acta (2020), 119879, database is CAplus.

The mol. switching of complexes based on diarylethenes in a solid-state is their most frequently studied property. This switching becomes possible when the active carbon atoms acquire a suitable interat. separation in the mol. Even if the structural anal. may suggest conditions disfavoring the occurrence of such switching, it may still be enabled by post-synthetic modification of the sample, like dehydration. In the present study, a novel one-dimensional coordination polymer with composition {[Zn(μ₃-HA)(H₂O)₃]·H₂O}_n was prepared and characterized. In its solid state, however, its thiophene rings were arranged in the non-switchable conformation yielding a C···C separation 4.148(6) Å between the active carbon atoms. After fully dehydrating the sample, this interat. separation decreased to 3.814 Å, making it susceptible to photochromism by UV radiation.

Inorganica Chimica Acta published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, SDS of cas: 219537-97-0.

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