Author: Jessica.F

Tu, Zhude published the artcileSynthesis and Evaluation of 15-(4-(2-[18F]Fluoroethoxy)phenyl)pentadecanoic Acid: A Potential PET Tracer for Studying Myocardial Fatty Acid Metabolism, HPLC of Formula: 56523-59-2, the main research area is fluorine 18 fluoroethoxy phenyl pentadecanoic acid preparation PET imaging; myocardial fatty acid metabolism imaging PET.

15-(4-(2-[18F]fluoroethoxy)phenyl)pentadecanoic acid ([18F]7) was synthesized as a PET probe for assessing myocardial fatty acid metabolism The radiosynthesis of [18F]7 was accomplished using a two-step reaction, starting with the corresponding tosylate ester, Me 15-(4-(2-(tosyloxy)ethoxy)phenyl)pentadecanoate (5), and gave the radiolabeled fatty acid, [18F]7 in a radiolabeling yield of 55-60% and a specific activity of >2000 Ci/mmol (decay corrected to EOB). The biol. evaluation of [18F]7 in rats displayed high uptake in heart (1.94%ID/g at 5 min), which was higher than the uptake (%ID/g) in blood, lung, muscle, pancreas, and brain. MicroPET studies of [18F]7 in Sprague-Dawley rats demonstrated excellent images of the myocardium when compared with [11C]palmitate images in the same animal. Moreover, the tracer kinetics of [18F]7 paralleled those seen with [11C]palmitate, with an early peak followed by biphasic washout. When compared to [11C]palmitate, [18F]7 exhibited a slower early clearance (0.17 ± 0.01 vs 0.30 ± 0.02, P < 0.0001) and a significantly higher late clearance (0.0030 ± 0.0005 vs 0.0006 ± 0.00013, P < 0.01). These initial studies suggest that [18F]7 could be a potentially useful clin. PET tracer to assess abnormal myocardial fatty acid metabolism Bioconjugate Chemistry published new progress about Fatty acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 56523-59-2 belongs to class bromides-buliding-blocks, name is 15-Bromopentadecanoic acid, and the molecular formula is C15H29BrO2, HPLC of Formula: 56523-59-2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Tian, Jianhua published the artcileDiscovery and Structure-Based Optimization of Potent and Selective WD Repeat Domain 5 (WDR5) Inhibitors Containing a Dihydroisoquinolinone Bicyclic Core, HPLC of Formula: 452-63-1, the main research area is WD repeat domain WDR5 inhibitor dihydroisoquinolinone bicyclic core.

WD repeat domain 5 (WDR5) is a member of the WD40-repeat protein family that plays a critical role in multiple chromatin-centric processes. Overexpression of WDR5 correlates with a poor clin. outcome in many human cancers, and WDR5 itself has emerged as an attractive target for therapy. Most drug-discovery efforts center on the WIN site of WDR5 that is responsible for the recruitment of WDR5 to chromatin. Here, we describe discovery of a novel WDR5 WIN site antagonists containing a dihydroisoquinolinone bicyclic core using a structure-based design. These compounds exhibit picomolar binding affinity and selective concentration-dependent antiproliferative activities in sensitive MLL-fusion cell lines. Furthermore, these WDR5 WIN site binders inhibit proliferation in MYC-driven cancer cells and reduce MYC recruitment to chromatin at MYC/WDR5 co-bound genes. Thus, these mols. are useful probes to study the implication of WDR5 inhibition in cancers and serve as a potential starting point toward the discovery of anti-WDR5 therapeutics.

Journal of Medicinal Chemistry published new progress about Animal gene Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, HPLC of Formula: 452-63-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Tanimoto, Kouichi published the artcileA convenient one-pot access to phenanthridinones via Suzuki-Miyaura cross-coupling reaction, Recommanded Product: Methyl 2-bromo-3-fluorobenzoate, the main research area is phenanthridinone preparation Suzuki Miyaura coupling aminophenylboronic acid halobenzoate.

A convenient one-step access to biol. important phenanthridinones has been realized based upon Suzuki-Miyaura cross-coupling reaction. Reactions of 2-aminophenylboronic acid with 2-halobenzoate took place smoothly to afford substituted phenanthridinones in excellent yields in the presence of palladium(II) acetate and 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (SPhos) as pre-catalysts. A natural product phenaglydon was synthesized in one-pot manner from readily available starting materials in 95% yield.

Tetrahedron Letters published new progress about Aromatic carboxylic acids, esters Role: RCT (Reactant), RACT (Reactant or Reagent). 647020-71-1 belongs to class bromides-buliding-blocks, name is Methyl 2-bromo-3-fluorobenzoate, and the molecular formula is C8H6BrFO2, Recommanded Product: Methyl 2-bromo-3-fluorobenzoate.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Pirrung, Michael C. published the artcile19F-Encoded Combinatorial Libraries: Discovery of Selective Metal Binding and Catalytic Peptoids, Recommanded Product: 3-Bromo-2-fluoro-5-methylbenzoic acid, the main research area is aryl fluoride preparation labeling solid support combinatorial chem; fluorine 19 encoded combinatorial peptoid library solid phase synthesis; metal binding screening combinatorial peptoid library; acylation autocatalyst screening combinatorial peptoid library; amine cyclic anhydride coupling solid phase combinatorial library.

A 19F NMR method for encoding of combinatorial libraries has been developed. Aryl fluorides whose chem. shifts are modified by aromatic substituents were prepared and attached to resin support beads that were used in the split-pool synthesis of peptoids. The detection of the 19F NMR signal of tags derived from a single “”big bead”” was demonstrated. The library diversity arises from amines and the cyclic anhydrides used in their acylation. The resulting 90-compound library was examined for metal ion binding, whereupon novel ligands for iron and copper were discovered. The metal-binding constants of some of these peptoids were in the low micromolar range. The library was also examined for catalysis of self-acylation.

Journal of Combinatorial Chemistry published new progress about Amines Role: CMB (Combinatorial Study), RCT (Reactant), RACT (Reactant or Reagent). 72518-16-2 belongs to class bromides-buliding-blocks, name is 3-Bromo-2-fluoro-5-methylbenzoic acid, and the molecular formula is C8H6BrFO2, Recommanded Product: 3-Bromo-2-fluoro-5-methylbenzoic acid.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chen, Ying-Chu published the artcileC-N Coupling of DNA-Conjugated (Hetero)aryl Bromides and Chlorides for DNA-Encoded Chemical Library Synthesis, Recommanded Product: 5-Bromo-6-hydroxynicotinic acid, the main research area is DNA encoded heteroaryl amide library synthesis.

DNA-encoded chem. library (DECL) screens are a rapid and economical tool to identify chem. starting points for drug discovery. As a robust transformation for drug discovery, palladium-catalyzed C-N coupling is a valuable synthetic method for the construction of DECL chem. matter; however, currently disclosed methods have only been demonstrated on DNA-attached (hetero)aromatic iodide and bromide electrophiles. We developed conditions utilizing an N-heterocyclic carbene-palladium catalyst that extends this reaction to the coupling of DNA-conjugated (hetero)aromatic chlorides with (hetero)aromatic and select aliphatic amine nucleophiles. In addition, we evaluated steric and electronic effects within this catalyst series, carried out a large substrate scope study on two representative (hetero)aryl bromides, and applied this newly developed method within the construction of a 63 million-membered DECL.

Bioconjugate Chemistry published new progress about Anilines Role: CMB (Combinatorial Study), RCT (Reactant), RACT (Reactant or Reagent). 41668-13-7 belongs to class bromides-buliding-blocks, name is 5-Bromo-6-hydroxynicotinic acid, and the molecular formula is C6H4BrNO3, Recommanded Product: 5-Bromo-6-hydroxynicotinic acid.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Qing-Yang published the artcileOne pot synthesis of dibenzodiazepinones via CuI catalysis in ethylene glycol, Recommanded Product: Ethyl 2-bromo-4-fluorobenzoate, the main research area is halobenzoate phenylenediamine cyclization copper catalyst ethylene glycol; dibenzodiazepinone preparation.

A one-pot protocol for the synthesis of dibenzodiazepinones was developed. Substituted Et 2-halobenzoates are cross-coupled with 1,2-phenylenediamine utilizing a ligand-free, CuI-catalyzed system, which spontaneously undergo intramol. N-acylation in ethylene glycol to give the corresponding products in high yields. This synthetic protocol provides a concise and efficient access to a wide variety of dibenzodiazepinones, including biol. active mols.

Chinese Chemical Letters published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 651341-68-3 belongs to class bromides-buliding-blocks, name is Ethyl 2-bromo-4-fluorobenzoate, and the molecular formula is C9H8BrFO2, Recommanded Product: Ethyl 2-bromo-4-fluorobenzoate.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Beld, Joris published the artcileVersatility of Acyl-Acyl Carrier Protein Synthetases, Formula: C15H29BrO2, the main research area is acyl carrier protein synthetase fatty acid carboxylate lipid.

The acyl carrier protein (ACP) requires posttranslational modification with a 4′-phosphopantetheine arm for activity, and this thiol-terminated modification carries cargo between enzymes in ACP-dependent metabolic pathways. We show that acyl-ACP synthetases (AasSs) from different organisms are able to load even, odd, and unnatural fatty acids onto E. coli ACP in vitro. Vibrio harveyi AasS not only shows promiscuity for the acid substrate, but also is active upon various alternate carrier proteins. AasS activity also extends to functional activation in living organisms. We show that exogenously supplied carboxylic acids are loaded onto ACP and extended by the E. coli fatty acid synthase, including unnatural fatty acid analogs. These analogs are further integrated into cellular lipids. In vitro characterization of four different adenylate-forming enzymes allowed us to disambiguate CoA-ligases and AasSs, and further in vivo studies show the potential for functional application in other organisms.

Chemistry & Biology (Oxford, United Kingdom) published new progress about Carboxylic acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 56523-59-2 belongs to class bromides-buliding-blocks, name is 15-Bromopentadecanoic acid, and the molecular formula is C15H29BrO2, Formula: C15H29BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhai, Shiyang published the artcileDesign, synthesis and biological evaluation of novel hybrids targeting mTOR and HDACs for potential treatment of hepatocellular carcinoma, Formula: C12H23BrO2, the main research area is hepatocellular carcinoma mTOR HDAC1 antiproliferative drug deign mol docking; HDACs; Hepatocellular carcinoma; Hybrids; mTOR.

Hepatocellular carcinoma (HCC) is a major contributor to global cancer incidence and mortality. Many pathways are involved in the development of HCC and various proteins including mTOR and HDACs have been identified as potential drug targets for HCC treatment. In the present study, two series of novel hybrid mols. targeting mTOR and HDACs were designed and synthesized based on parent inhibitors (MLN0128 and PP121 for mTOR, SAHA for HDACs) by using a fusion-type mol. hybridization strategy. In vitro antiproliferative assays demonstrated that these novel hybrids with suitable linker lengths exhibited broad cytotoxicity against various cancer cell lines, with significant activity against HepG2 cells. Notably, DI06, an MLN0128-based hybrid, exhibited antiproliferative activity against HepG2 cells with an IC50 value of 1.61μM, which was comparable to those of both parent drugs (MLN0128, IC50 = 2.13μM and SAHA, IC50 = 2.26μM). In vitro enzyme inhibition assays indicated that DI06, DI07 and DI17 (PP121-based hybrid) exhibited nanomolar inhibitory activity against mTOR kinase and HDACs (e.g., HDAC1, HDAC2, HDAC3, HADC6 and HADC8). Cellular studies and western blot analyses uncovered that in HepG2 cells, DI06 and DI17 induced cell apoptosis by targeting mTOR and HDACs, blocked the cell cycle at the G0/G1 phase and suppressed cell migration. The potential binding modes of the hybrids (DI06 and DI17) with mTOR and HDACs were investigated by mol. docking. DI06 displayed better stability in rat liver microsomes than DI07 and DI17. Collectively, DI06 as a novel mTOR and HDACs inhibitor presented here warrants further investigation as a potential treatment of HCC.

European Journal of Medicinal Chemistry published new progress about Acetylation. 55099-31-5 belongs to class bromides-buliding-blocks, name is Ethyl 10-bromodecanoate, and the molecular formula is C12H23BrO2, Formula: C12H23BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wu, Jie published the artcileDerivatives of Natural Product Agrimophol as Disruptors of Intrabacterial pH Homeostasis in Mycobacterium tuberculosis, Formula: C6H5BrO3, the main research area is agrimophol derivative antitubercular disruption pH homeostasis Mycobacterium tuberculosis; agrimophol; coumarin; diphenylmethane scaffold; intrabacterial pH homeostasis; pharmacophores.

This article reports the rational medicinal chem. of a natural product, agrimophol (1), as a new disruptor of intrabacterial pH (pHIB) homeostasis in Mycobacterium tuberculosis (Mtb). Through the systematic investigation of the structure-activity relationship of 1, scaffold-hopping of the diphenylmethane scaffold, pharmacophore displacement strategies, and studies of the structure-metabolism relationship, a new derivative 5a was achieved. Compound 5a showed 100-fold increased potency in the ability to reduce pHIB to pH 6.0 and similarly improved mycobactericidal activity compared with 1 against both Mycobacterium bovis-BCG and Mtb. Compound 5a possessed improved metabolic stability in human liver microsomes and hepatocytes, lower cytotoxicity, higher selectivity index, and similar pKa value to natural 1. This study introduces a novel scaffold to an old drug, resulting in improved mycobactericidal activity through decreasing pHIB, and may contribute to the critical search for new agents to overcome drug resistance and persistence in the treatment of tuberculosis.

ACS Infectious Diseases published new progress about Chromans Role: PAC (Pharmacological Activity), SPN (Synthetic Preparation), THU (Therapeutic Use), BIOL (Biological Study), PREP (Preparation), USES (Uses) (chromanones). 84743-77-1 belongs to class bromides-buliding-blocks, name is 2-Bromobenzene-1,3,5-triol, and the molecular formula is C6H5BrO3, Formula: C6H5BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sobolev, Vasily I. published the artcileReactivity of alkali and alkaline earth metal tetrafluorobromates towards aromatic compounds and pyridine, Recommanded Product: 1-Bromo-4-fluoro-2-methylbenzene, the main research area is alkali earth metal fluorobromate bromination aromatic compound nitrobenzene safety; aryl bromide preparation.

The bromination activity of tetrafluorobromates of alkali and alkali-earth metals increases in the order KBrF4, CsBrF4, RbBrF4 and Ba(BrF4)2. The most active tetrafluorobromate-Ba(BrF4)2 is able to selectively brominate the deactivated aromatic compounds nitrobenzene and 4-nitrotoluene, but not the activated compounds benzene and toluene. In all cases bromination of Me groups of methylbenzenes does not occur. Ba(BrF4)2 forms the known complex C6H5N·BrF3 when reacted with pyridine. Due to dilution by inert BaF2, this pyridine-based complex is air stable and can be considered as safer and more convenient reagent in comparison with the original fluorobromates; it can selectively brominate benzene and toluene in contrast with tetrafluorobromates.

Journal of Fluorine Chemistry published new progress about Aromatic compounds Role: RCT (Reactant), RACT (Reactant or Reagent). 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, Recommanded Product: 1-Bromo-4-fluoro-2-methylbenzene.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary