Author: Jessica.F

Lortscher, Emanuel published the artcileCharge transport through molecular rods with reduced π-conjugation, Application In Synthesis of 452-63-1, the main research area is reduced pi conjugation oligophenylene mol rod charge transport.

A series of oligophenylene rods of increasing lengths is synthesized to investigate the charge-transport mechanisms. Me groups are attached to the Ph rings to weaken the electronic overlap of the π-subsystems along the mol. backbones. Out-of-plane rotation of the Ph rings is confirmed in the solid state by means of X-ray anal. and in solution by using UV/Vis spectroscopy. The influence of the reduced π-conjugation on the resonant charge transport is studied at the single-mol. level by using the mech. controllable break-junction technique. Experiments are performed under ultra-high-vacuum conditions at low temperature (50 K). A linear increase of the conductance gap with increasing number of Ph rings (from 260 meV for one ring to 580 meV for four rings) is revealed. In addition, the absolute conductance of the first resonant peaks does not depend on the length of the mol. wire. Resonant transport through the first MO is found to be dominated by charge-carrier injection into the mol., rather than by the intrinsic resistance of the mol. wire length.

ChemPhysChem published new progress about Conjugation (bond), π-. 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, Application In Synthesis of 452-63-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Xuan published the artcileDiscovery of PROTAC BCL-XL degraders as potent anticancer agents with low on-target platelet toxicity, Related Products of bromides-buliding-blocks, the main research area is preparation PROTAC apoptosis BCLxL degrader cancer platelet toxicity; Apoptosis; BCL-X(L); Degradation; PROTAC; Platelet.

Anti-apoptotic protein BCL-XL plays a key role in tumorigenesis and cancer chemotherapy resistance, rendering it an attractive target for cancer treatment. However, BCL-XL inhibitors such as ABT-263 cannot be safely used in the clinic because platelets solely depend on BCL-XL to maintain their viability. To reduce the on-target platelet toxicity associated with the inhibition of BCL-XL, we designed and synthesized PROTAC BCL-XL degraders that recruit CRBN or VHL E3 ligase because both of these enzymes are poorly expressed in human platelets compared to various cancer cell lines. We confirmed that platelet-toxic BCL-XL/2 dual inhibitor ABT-263 can be converted into platelet-sparing CRBN/VHL-based BCL-XL specific degraders. A number of BCL-XL degraders are more potent in killing cancer cells than their parent compound ABT-263. Specifically, XZ739, a CRBN-dependent BCL-XL degrader, is 20-fold more potent than ABT-263 against MOLT-4 T-ALL cells and has >100-fold selectivity for MOLT-4 cells over human platelets. Our findings further demonstrated the utility of PROTAC technol. to achieve tissue selectivity through recruiting differentially expressed E3 ligases.

European Journal of Medicinal Chemistry published new progress about Antitumor agents (low). 55099-31-5 belongs to class bromides-buliding-blocks, name is Ethyl 10-bromodecanoate, and the molecular formula is C12H23BrO2, Related Products of bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Yi-Ting published the artcileNovel nucleocapsid protein-targeting phenanthridine inhibitors of SARS-CoV-2, COA of Formula: C8H7BrO3, the main research area is nucleocapsid protein phenanthridine inhibitor SARS CoV2 coronavirus COVID19; N-terminal domain; Nucleocapsid protein; Phenanthridine; SARS-CoV-2.

The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unprecedented in human history. As a major structural protein, nucleocapsid protein (NPro) is critical to the replication of SARS-CoV-2. In this work, 17 NPro-targeting phenanthridine derivatives were rationally designed and synthesized, based on the crystal structure of NPro. Most of these compounds can interact with SARS-CoV-2 NPro tightly and inhibit the replication of SARS-CoV-2 in vitro. Compounds 12 and 16 exhibited the most potent anti-viral activities with 50% effective concentration values of 3.69 and 2.18μM, resp. Furthermore, site-directed mutagenesis of NPro and Surface Plasmon Resonance (SPR) assays revealed that 12 and 16 target N-terminal domain (NTD) of NPro by binding to Tyr109. This work found two potent anti-SARS-CoV-2 bioactive compounds and also indicated that SARS-CoV-2 NPro-NTD can be a target for new anti-virus agents.

European Journal of Medicinal Chemistry published new progress about Anticoronaviral agents. 74317-85-4 belongs to class bromides-buliding-blocks, name is 2-Bromo-4-methoxybenzoic acid, and the molecular formula is C8H7BrO3, COA of Formula: C8H7BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chen, Weixiong published the artcileDiscovery of highly potent SARS-CoV-2 Mpro inhibitors based on benzoisothiazolone scaffold, Formula: C8H7BrO3, the main research area is benzoisothiazolone scaffold SARSCoV2 coronavirus Mpro inhibitor COVID19; Benzoisothiazolone; COVID-19; Main protease inhibitors; SARS-CoV-2.

The COVID-19 pandemic has drastically impacted global economies and public health. Although vaccine development has been successful, it was not sufficient against more infectious mutant strains including the Delta variant indicating a need for alternative treatment strategies such as small mol. compound development. In this work, a series of SARS-CoV-2 main protease (Mpro) inhibitors were designed and tested based on the active compound from high-throughput diverse compound library screens. The most efficacious compound (16b-3) displayed potent SARS-CoV-2 Mpro inhibition with an IC50 value of 116 nM and selectivity against SARS-CoV-2 Mpro when compared to PLpro and RdRp. This new class of compounds could be used as potential leads for further optimization in anti COVID-19 drug discovery.

Bioorganic & Medicinal Chemistry Letters published new progress about Anticoronaviral agents. 74317-85-4 belongs to class bromides-buliding-blocks, name is 2-Bromo-4-methoxybenzoic acid, and the molecular formula is C8H7BrO3, Formula: C8H7BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zheng, Yan-Long published the artcileNickel-Catalyzed Domino Heck-Type Reactions Using Methyl Esters as Cross-Coupling Electrophiles, Synthetic Route of 647020-71-1, the main research area is nickel catalyst Heck Suzuki Miyaura coupling methyl ester electrophile; cross-coupling; cyclizations; esters; homogeneous catalysis; nickel.

While esters are frequently used as traditional electrophiles in substitution chem., their application in cross-coupling chem. is still in its infancy. Me esters can be used as coupling electrophiles in Ni-catalyzed Heck-type reactions through the challenging cleavage of the C(acyl)-O bond under relatively mild reaction conditions at either 80 or 100°. With the σ-NiII intermediate generated from the insertion of acyl NiII species into the tethered C:C bond, carbonyl-retentive products were formed by domino Heck/Suzuki-Miyaura coupling and Heck/reduction pathways when organoboron and mild hydride nucleophiles were used.

Angewandte Chemie, International Edition published new progress about Cross-coupling reaction. 647020-71-1 belongs to class bromides-buliding-blocks, name is Methyl 2-bromo-3-fluorobenzoate, and the molecular formula is C8H6BrFO2, Synthetic Route of 647020-71-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhou, Likai published the artcileEnantioselective Transfer Hydrogenation of Oxocarbenium Ions Enables Asymmetric Access to α-Substituted 1,3-Dihydroisobenzofurans, Recommanded Product: 2-Bromo-4-methoxybenzoic acid, the main research area is dihydroisobenzofuran preparation enantioselective; cyclic oxocarbenium ion ketal transfer hydrogenation.

Reported here is an efficient enantioselective transfer hydrogenation of cyclic oxocarbenium ions generated in situ through collapse of the corresponding acetal substrates. The asym. approach provides straightforward access to a variety of chiral α-aryl substituted 1,3-dihydroisobenzofurans in high yields with excellent enantioselectivities. α-Alkynyl substituted 1,3-dihydroisobenzofurans were also proved to be suitable substrates. In addition, when the reaction was performed at gram scale, the desired product was obtained in good yields with excellent enantioselectivity.

Synthesis published new progress about Carbocations, carbenium. 74317-85-4 belongs to class bromides-buliding-blocks, name is 2-Bromo-4-methoxybenzoic acid, and the molecular formula is C8H7BrO3, Recommanded Product: 2-Bromo-4-methoxybenzoic acid.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Eggers, Paul K. published the artcileThe Effect of Surface Polarity on the Electrochemical Double Layer and Its Influence on the Measurement of the Standard Rate Constant of Electron Transfer, COA of Formula: C15H29BrO2, the main research area is surface polarity elec double layer electron transfer kinetics; mercaptoferrocenemethylcarboxamide preparation elec double layer gold.

The influence of surface polarity and, hence, the elec. double layer on long-range electron transfer was studied using 35 different electrode constructs. These constructs were prepared using 5 different lengths of ferrocene-modified alkanethiols (of general formula HS(CH2)nCONHCH2Fc where n was 7, 10, 11, 14, and 15 and Fc refers to ferrocene) mixed with an appropriate ratio of hydroxyl-terminated to Me-terminated alkanethiols as diluents. The mixtures of diluents in different ratios served not only to sep. and dilute the redox-active species but also to control the surface polarity of the self-assembled monolayer (SAM). The ratios of the 3 components in each SAM were 1:20:0, 1:16.6:3.4, 1:13.4:6.6, 1:10:10, 1:6.6:13.4, 1:16.6:3.4, and 1:0:20 of the ferrocene-, hydroxyl-, and Me-terminated species, resp. The formal redox potential and electron transfer rate constant were measured for each construct. It was found, 1st, that formal potentials changed according to the theory of interfacial potential distribution and, 2nd, that rate constants measured using cyclic voltammetry are strongly influenced by the Stern layer of the elec. double layer, which forms at the SAM-solution interface.

Journal of Physical Chemistry C published new progress about Chemical chains (length). 56523-59-2 belongs to class bromides-buliding-blocks, name is 15-Bromopentadecanoic acid, and the molecular formula is C15H29BrO2, COA of Formula: C15H29BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Aicher, Thomas D. published the artcileDiscovery of LYC-55716: A Potent, Selective, and Orally Bioavailable Retinoic Acid Receptor-Related Orphan Receptor-γ (RORγ) Agonist for Use in Treating Cancer, Formula: C7H4BrF3O, the main research area is benzoxazine derivative oral RAR ROR receptor agonist preparation cancer.

Retinoic acid receptor-related orphan receptor γ (RORc, RORγ, or NR1F3) is the nuclear receptor master transcription factor that drives the function and development of IL-17-producing T helper cells (Th17), cytotoxic T cells (Tc17), and subsets of innate lymphoid cells. Activation of RORγ+ T cells in the tumor microenvironment is hypothesized to render immune infiltrates more effective at countering tumor growth. To test this hypothesis, a family of benzoxazines was optimized to provide LYC-55716 (37c), a potent, selective, and orally bioavailable small-mol. RORγ agonist. LYC-55716 decreases tumor growth and enhances survival in preclin. tumor models and was nominated as a clin. development candidate for evaluation in patients with solid tumors.

Journal of Medicinal Chemistry published new progress about Antiproliferative agents. 433939-28-7 belongs to class bromides-buliding-blocks, name is 1-Bromo-3-(difluoromethoxy)-5-fluorobenzene, and the molecular formula is C7H4BrF3O, Formula: C7H4BrF3O.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wisniewski, John A. published the artcileStructure-Based Design of 1,4-Dibenzoylpiperazines as β-Catenin/B-Cell Lymphoma 9 Protein-Protein Interaction Inhibitors, Formula: C6H4BrNO3, the main research area is dibenzoylpiperazine preparation beta catenin BCL9 protein interaction inhibitor antitumor; B-cell lymphoma 9; Wnt signaling; inhibitor; protein−protein interactions; selectivity; β-Catenin.

A small-mol. inhibitor with a 1,4-dibenzoylpiperazine scaffold was designed to match the critical binding elements in the β-catenin/B-cell lymphoma 9 (BCL9) protein-protein interaction interface. Inhibitor optimization led to a potent inhibitor that can disrupt the β-catenin/BCL9 interaction and exhibit 98-fold selectivity over the β-catenin/cadherin interaction. The binding mode of new inhibitors was characterized by structure-activity relationships and site-directed mutagenesis studies. Cell-based studies demonstrated that this series of inhibitors can selectively suppress canonical Wnt signaling and inhibit growth of Wnt/β-catenin-dependent cancer cells.

ACS Medicinal Chemistry Letters published new progress about Antiproliferative agents. 41668-13-7 belongs to class bromides-buliding-blocks, name is 5-Bromo-6-hydroxynicotinic acid, and the molecular formula is C6H4BrNO3, Formula: C6H4BrNO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Murray, Michael published the artcileCarbon Chain Length Modulates MDA-MB-231 Breast Cancer Cell Killing Mechanisms by Mitochondrially Targeted Aryl-Urea Fatty Acids, Related Products of bromides-buliding-blocks, the main research area is aryl urea fatty acid preparation structure breast cancer mitochondrion; antitumor agents; apoptosis; breast cancer; fatty acids; lipid drugs.

Targeting the tumor cell mitochondrion could produce novel anticancer agents. We designed an aryl-urea fatty acid (1 g; 16({[4-chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)hexadecanoic acid) that disrupted the mitochondrion and decreased MDA-MB-231 breast cancer cell viability. To optimize the aryl-ureas the present study evaluated mitochondrial targeting by 1 g analogs containing alkyl chains between 10-17 carbons. Using the dye JC-1, the C12-C17 analogs efficiently disrupted the mitochondrial membrane potential (IC50s 3.5±1.2 to 7.6±1.1μM) and impaired ATP production; shorter analogs were less active. 7-Aminoactinomycin D/annexin V staining and flow cytometry showed that these agents activated the killing mechanisms of necrosis and apoptosis to varying extents (7-aminoactinomycin D/annexin V staining ratios 4.3-6.0). Indeed, 1 g and its C17 analog preferentially activated necrosis and apoptosis, resp. (ratios 2.1 and 16). Taken together, alkyl chain length is a determinant of mitochondrial targeting by aryl-ureas and can be varied to develop analogs that activate apoptosis or necrosis in a regulated fashion.

ChemMedChem published new progress about Antiproliferative agents. 55099-31-5 belongs to class bromides-buliding-blocks, name is Ethyl 10-bromodecanoate, and the molecular formula is C12H23BrO2, Related Products of bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary