Tag: M.W=150-200

Beppu, Teruo published the artcileHydrosilane synthesis via catalytic hydrogenolysis of halosilanes using a metal-ligand bifunctional iridium catalyst, Quality Control of 14799-94-1, the publication is Journal of Organometallic Chemistry (2018), 75-80, database is CAplus.

Hydrogenolysis of various halosilanes was catalyzed by Ir amido complexes to produce hydrosilanes. Selective monohydrogenolysis of di- and trichlorosilanes similarly proceeded, giving chlorohydrosilanes (R₂SiHCl or RSiHCl₂) as synthetically important building blocks for various organosilicon compounds A mechanistic study supported the in-situ formation of an Ir hydride species as a key intermediate, which could transfer the hydride to the Si atom through a metal-ligand bifunctional mechanism. One-pot hydrotrimethylsilylation of olefins was achieved via successive hydrogenolysis and hydrosilylation reactions starting from Me₃SiCl.

Journal of Organometallic Chemistry published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Quality Control of 14799-94-1.

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

Naganawa, Yuki published the artcileA General and Selective Synthesis of Methylmonochlorosilanes from Di-, Tri-, and Tetrachlorosilanes, Application of Dichloro(hexyl)(methyl)silane, the publication is Organic Letters (2021), 23(2), 601-606, database is CAplus and MEDLINE.

Direct catalytic transformation of chlorosilanes into organosilicon compounds remains challenging due to difficulty in cleaving the strong Si-Cl bond(s). Herein, it is reported the palladium-catalyzed cross-coupling reaction of chlorosilanes with organoaluminum reagents. A combination of [Pd(C₃H₅)Cl]₂ and DavePhos ligand catalyzed the selective methylation of various dichlorosilanes, trichlorosilanes, and tetrachlorosilane to give the corresponding monochlorosilanes.

Organic Letters published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Application of Dichloro(hexyl)(methyl)silane.

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

Schlapbach, Achim published the artcileN-aryl-piperidine-4-carboxamides as a novel class of potent inhibitors of MALT1 proteolytic activity, Formula: C6H3ClFNO2, the publication is Bioorganic & Medicinal Chemistry Letters (2018), 28(12), 2153-2158, database is CAplus and MEDLINE.

Starting from a weak screening hit, potent and selective inhibitors of the MALT1 protease function were elaborated. Advanced compounds displayed high potency in biochem. and cellular assays. Compounds showed activity in a mechanistic Jurkat T cell activation assay as well as in the B-cell lymphoma line OCI-Ly3, which suggests potential use of MALT1 inhibitors in the treatment of autoimmune diseases as well as B-cell lymphomas with a dysregulated NF-κB pathway. Initially, rat pharmacokinetic properties of this compound series were dominated by very high clearance which could be linked to amide cleavage. Using a rat hepatocyte assay a good in vitro-in vivo correlation could be established which led to the identification of compounds with improved PK properties.

Bioorganic & Medicinal Chemistry Letters 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, Formula: C6H3ClFNO2.

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

Geer, B. W. published the artcileThe growth effects of carnitine, deoxycarnitine, and sulfocholine for Drosophila, Neurospora, and Saccharomyces, Related Products of chlorides-buliding-blocks, the publication is Growth (1965), 29(4), 405-13, database is CAplus.

The physiol. activities of choline (I) were studied in Saccharomyces carlsbergensis, a I-requiring strain of Neurospora crassa, and Drosophila melanogaster. The related compounds deoxycarnitine (II), carnitine (III), and sulfocholine (IV) were then substituted for dietary I. IV was more effective than I in inhibiting the growth response of S. carlsbergensis to inositol, was slightly less effective than I in promoting the growth of I-requiring N. crassa, and was ∼50% as effective as I in stimulating the growth of D. melanogaster larvae. II and III were ineffective in the Neurospora and Saccharomyces systems, but were nearly as effective as I in the Drosophila system. Thus, the Neurospora and Saccharomyces systems are fundamentally similar in their responses to the test compounds The ability to utilize dietary II and III effectively for growth in place of I apparently evolved within the insect order Diptera.

Growth 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, Related Products of chlorides-buliding-blocks.

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

Ruiz Montoya, M. published the artcileA Contribution to the Elucidation of the Reduction Mechanism of 2-Chloroisonicotinic Acid on Mercury Electrodes, Recommanded Product: 2-Chloroisonicotinic acid, the publication is Journal of the Electrochemical Society (2008), 155(8), F190-F195, database is CAplus.

This paper presents polarog. (d.c. and differential pulse) and voltammetric (linear-sweep cyclic voltammetric) studies of the electroreduction of 2-chloroisonicotinic acid (2-chloro-4-pyridinecarboxylic acid), 2-CISO, at Hg electrodes. The dissociation constants of 2-CISO were obtained from the UV-visible absorption spectra (pK of 0.5 ± 0.03 corresponding to the -COOH group) and by potentiometric titration (pK of 3.46 corresponding to the protonation-dissociation of the heterocyclic N). The electrochem. studies were performed in the acidity range 2.7M H₂SO₄ to pH 7. Above the last pH value no signals were observed The overall reduction process involves the uptake of 4 electrons. Kinetics parameters such as Tafel slopes and electrochem. reaction orders were determined at potentials corresponding to the foot of the waves. A reaction mechanism can be proposed, consisting of an electrochem.-chem. process having 2 reversible electron transfers preceding a chem. step. At the scan rates used in cyclic voltammetry, the rate-determining step is the 2nd irreversible electron transfer. At pH°0.5 the recombination of the carboxylate anion with the H⁺ ion takes place prior to the reduction process.

Journal of the Electrochemical Society 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, Recommanded Product: 2-Chloroisonicotinic acid.

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

Buffa, Jennifer A. published the artcileThe microbial gbu gene cluster links cardiovascular disease risk associated with red meat consumption to microbiota L-carnitine catabolism, Related Products of chlorides-buliding-blocks, the publication is Nature Microbiology (2022), 7(1), 73-86, database is CAplus and MEDLINE.

Abstract: The heightened cardiovascular disease (CVD) risk observed among omnivores is thought to be linked, in part, to gut microbiota-dependent generation of trimethylamine-N-oxide (TMAO) from L-carnitine, a nutrient abundant in red meat. Gut microbial transformation of L-carnitine into trimethylamine (TMA), the precursor of TMAO, occurs via the intermediate γ-butyrobetaine (γBB). However, the interrelationship of γBB, red meat ingestion and CVD risks, as well as the gut microbial genes responsible for the transformation of γBB to TMA, are unclear. In the present study, we show that plasma γBB levels in individuals from a clin. cohort (n = 2,918) are strongly associated with incident CVD event risks. Culture of human faecal samples and microbial transplantation studies in gnotobiotic mice with defined synthetic communities showed that the introduction of Emergencia timonensis, a human gut microbe that can metabolize γBB into TMA, is sufficient to complete the carnitine → γBB → TMA transformation, elevate TMAO levels and enhance thrombosis potential in recipients after arterial injury. RNA-sequencing analyses of E. timonensis identified a six-gene cluster, herein named the γBB utilization (gbu) gene cluster, which is upregulated in response to γBB. Combinatorial cloning and functional studies identified four genes (gbuA, gbuB, gbuC and gbuE) that are necessary and sufficient to recapitulate the conversion of γBB to TMA when coexpressed in Escherichia coli. Finally, reanal. of samples (n = 113) from a clin., randomized diet, intervention study showed that the abundance of faecal gbuA correlates with plasma TMAO and a red meat-rich diet. Our findings reveal a microbial gene cluster that is critical to dietary carnitine → γBB → TMA → TMAO transformation in hosts and contributes to CVD risk.

Nature Microbiology 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, Related Products of chlorides-buliding-blocks.

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

Fattori, Daniela published the artcileDesign and synthesis of novel sulfonamide-containing bradykinin hB₂ receptor antagonists. 2. synthesis and structure-activity relationships of α,α-cycloalkylglycine sulfonamides, HPLC of Formula: 6249-56-5, the publication is Journal of Medicinal Chemistry (2007), 50(3), 550-565, database is CAplus and MEDLINE.

Recently, the design and synthesis of a class of selective nonpeptide bradykinin (BK) B₂ receptor antagonists (J. Med. Chem. 2006, 3602-3613) was reported. This work led to the discovery of MEN 15442 (I), an antagonist with subnanomolar affinity for the human B2 receptor (hB2R), which also displayed significant and prolonged activity in vivo (for up to 210 min) against BK-induced bronchoconstriction in the guinea-pig at a dose of 300 nmol/kg (it), while demonstrating only a slight effect on BK-induced hypotension. Herein, the further optimization of this series of compounds aimed at maximizing the effect on bronchoconstriction and minimizing the effect on hypotension, with a view to developing topically delivered drugs for airway diseases, is described. It was found that MEN 16132 (II), after intratracheal or aerosol administration, inhibited, in a dose-dependent manner, BK-induced bronchoconstricton in the airways, while showing minimal systemic activity. This compound was selected as a preclin. candidate for the topical treatment of airway diseases involving kinin B2 receptor stimulation.

Journal of Medicinal Chemistry 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

Grimova, J. published the artcileTo what extent can results of experimental studies be extrapolated in predicting adverse side effects of drugs in man?, Application In Synthesis of 33697-81-3, the publication is Archives of Toxicology, Supplement (1986), 9(Toxic Interfaces Neurones), 240-3, database is CAplus.

A study of the pharmacokinetics and biotransformation of benzofenac (I) [60736-70-1] was conducted in exptl. animals (rats, rabbits, and dogs) and in human volunteers. The main urinary metabolites in the rat and dog are substances II  [33697-81-3], III  [90276-10-1], and IV [90276-12-3], and in the rabbit and man II and II. Man differs from animals in the quantities of the individual metabolites. Some metabolites were prepared and tested for embryotoxicity in chicken and rat embryos. Of all the metabolites, metabolite IV is responsible for the embryotoxic action of I. This metabolite never occurs in the rabbit or man. These results substantiate the necessity of carrying out concurrent comparative pharmacokinetic and biotransformation studies of new drugs in exptl. animals and man during the preclin. research stage.

Archives of Toxicology, Supplement published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Application In Synthesis of 33697-81-3.

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

Karimi, Nafiseh published the artcile4-(1-benzyl-1H-benzo[d]imidazol-2-yl)-4-oxo-2-butenoic acid derivatives: design, synthesis and anti-HIV-1 activity, Formula: C7H6Cl2, the publication is Iranian Journal of Pharmaceutical Research (2021), 20(1), 408-417, database is CAplus and MEDLINE.

Integrase, targeted in highly active antiretroviral therapy (HAART), was a crucial enzyme in viral replication. In this study, new benzimidazolyl diketo acid derivatives I [R = Ph, 2-MeC₆H₄, 2-FC₆H₄, etc.] were designed according to required features for inhibitors of HIV-1 integrase. Designed compounds I were evaluated for anti-HIV-1 effects and docking studies indicated that the binding mode of compound I [R = 2-FC₆H₄] was similar to INSTIs. According to the cell-based biol. assay’s results, most of the tested compounds I demonstrated good anti-HIV-1 activity, ranging from 40-90μM concentration with no severe cytotoxicity.

Iranian Journal of Pharmaceutical Research published new progress about 620-20-2. 620-20-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 3-Chlorobenzylchloride, and the molecular formula is C7H6Cl2, Formula: C7H6Cl2.

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

Beugelmans, Rene published the artcileSynthetic studies towards western and eastern macropolypeptide subunits of kistamicin, Category: chlorides-buliding-blocks, the publication is Tetrahedron (1999), 55(16), 5089-5112, database is CAplus.

Simplified models of the western and eastern macropolypeptide subunits of kistamicin were prepared The western subunit model I (fused bicyclic 16+15 membered ring) was synthesized by sequential intramol. S_NAr reaction and the first 17-membered ring compound as model of the eastern subunit II was obtained by an intramol. Ni⁰ mediated coupling reaction.

Tetrahedron published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Category: chlorides-buliding-blocks.

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