Category: bromides-buliding-blocks

Tanaka, Shinji published the artcileSystematic asymmetric analog synthesis of fluspidine, a σ1 receptor ligand, to improve ligand affinity, COA of Formula: C8H7BrO3, the main research area is fluspidine systematic asym preparation sigma receptor ligand.

Herein, fluspidine analogs I (R1 = H, 5-F, 6-Cl, 6-MeO, etc.; R2 = Ph, 3-FC6H4, 4-MeOC6H4, etc.; R3 = CH2F, CH2Cl, CH2Br, CH2I, COOH) were systematically synthesized and screened to improve the ligand affinity. To design the modified ligand analogs, a docking simulation of the protein-ligand complex structure was examined By using the developed synthetic strategy involving asym. catalytic 1,4-reduction of α,β-unsaturated carboxylic esters catalyzed by a chiral cobalt complex, 20 candidates of modified fluspidines were synthesized. The structure-activity relationships showed the development of a hybridized modified fluspidine. In addition, the inhibitory rate could be improved from 45% to 71%. This result demonstrated the importance of the development of a new synthetic method toward improving the ligand performance by providing a series of analogs.

Tetrahedron Letters published new progress about Drug metabolism. 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

Dey, Mishtu published the artcileCharacterization of Alkyl-Nickel Adducts Generated by Reaction of Methyl-Coenzyme M Reductase with Brominated Acids, SDS of cas: 56523-59-2, the main research area is methyl coenzyme M reductase active site electron transfer.

Methyl-coenzyme M reductase (MCR) from methanogenic archaea catalyzes the final step in the biol. synthesis of methane. Using coenzyme B (CoBSH) as the two-electron donor, MCR reduces methyl-coenzyme M (methyl-SCoM) to methane and the mixed disulfide, CoB-S-S-CoM. MCR contains coenzyme F430, an essential redox-active nickel tetrahydrocorphin, at its active site. The active form of MCR (MCRred1) contains Ni(I)-F430. When 3-bromopropane sulfonate (BPS) is incubated with MCRred1, an alkyl-Ni(III) species is formed that elicits the MCRPS EPR signal. Here we used EPR and UV-visible spectroscopy and transient kinetics to study the reaction between MCR from Methanothermobacter marburgensis and a series of brominated carboxylic acids, with carbon chain lengths of 4-16. All of these compounds give rise to an alkyl-Ni intermediate with an EPR signal similar to that of the MCRPS species. Reaction of the alkyl-Ni(III) adduct, formed from brominated acids with eight or fewer total carbons, with HSCoM as nucleophile at pH 10.0 results in the formation of a thioether coupled to regeneration of the active MCRred1 state. When reacted with 4-bromobutyrate, MCRred1 forms the alkyl-Ni(III) MCRXA state and then, surprisingly, undergoes “”self-reactivation”” to regenerate the Ni(I) MCRred1 state and a bromocarboxy ester. The results demonstrate an unexpected reactivity and flexibility of the MCR active site in accommodating a broad range of substrates, which act as mol. rulers for the substrate channel in MCR.

Biochemistry published new progress about Electron donors. 56523-59-2 belongs to class bromides-buliding-blocks, name is 15-Bromopentadecanoic acid, and the molecular formula is C15H29BrO2, SDS of cas: 56523-59-2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Garner, Charles W. published the artcileBoronic acid inhibitors of porcine pancreatic lipase, Computed Properties of 74386-13-3, the main research area is lipase pancreas inhibition boronic acid.

Porcine pancreatic lipase was inhibited by alkane and arene boronic acids. The inhibition by octadecane boronic acid was competitive when measured against the hydrolysis of dissolved tripropionin in the presence of siliconized glass beads. The value of Ki in this system was 1.34 × 103 mols. μm-2. The ratio of substrate to inhibitor concentrations giving 50% inhibition was in the range 700-2200, indicating that lipase has a greater affinity for boronic acids than for tripropionin. Boronic acids did not interfere with the interaction of lipase with the siliconized glass/water interface, demonstrating that the binding of lipase to substrate interfaces, the 1st step in lipase action, was not the step at which inhibition occurred. The boronic acid binding site on lipase is at or near the active center serine since modification of this residue by di-Et p-nitrophenyl phosphate was prevented by boronic acids. Modification of the active center serine residue by di-Et p-nitrophenyl phosphate also prevented boronic acid binding. Binding of a chromophoric boronic acid, 7-nitrobenzo-2-oxa-1,3-diazolyl m-aminobenzene boronic acid, to lipase was demonstrated by equilibrium gel filtration on polyacrylamide beads (Bio-Gel P-60) in the presence of 4 mM Na taurodeoxycholate. The complex contained 1 mol. of boronic acid/mol. of lipase and had a dissociation constant of 5 × 10-6 M. The boronic acid was not bound in the absence of taurodeoxycholate. Boronic acids are apparently analogs of the tetrahedral intermediate in the action of lipase.

Journal of Biological Chemistry published new progress about Enzyme kinetics. 74386-13-3 belongs to class bromides-buliding-blocks, name is 4-Bromo-3-nitrophenylboronic acid, and the molecular formula is C6H5BBrNO4, Computed Properties of 74386-13-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Seemaisamy, Revathi published the artcileAnti-microbial and anti-cancer activity of Aegle marmelos and gas chromatography coupled spectrometry analysis of their chemical constituents, Application In Synthesis of 55099-31-5, the main research area is Staphylococcus Bacillus Aegle breast cancer cell anticancer antimicrobial.

In this study, we investigated anti-cancer and antimicrobial activity of Aegle marmelos leaf extracts and their chem. profile characterized by gas chromatog. coupled mass spectrometry (GC-MS). A. marmelos leaves were extracted with acetone, methanol, ethanol, and chloroform. Presence of phenolic compounds was identified in these extracts by qual. anal. All the extracts were subjected for anti-bacterial activity against the different strains of bacteria (Staphylococcus aureus, Bacillus subtilis, Bacillus cereus, Bacillus ariyabattai, Bacillus megaterium, Pseudomonas putida, Klebsiella pneumonia, Serratia marcescens, and Escherichia coli). It is noteworthy that acetone extract elicited maximum growth inhibition on Serratia marcescens. Based on profound anti bacterial activity, acetone and methanol extract of A. marmelos were checked for cytotoxicity against MDA-MB-231, HEp-2 and vero cells. MDA-MB-231 cells were more sensitive to acetone extract of A. marmelos with an IC50 value of 79.62 μg/mL where as HEp-2 cells are more sensitive to methanol extract of A. marmelos with an IC50 value of 47.08 μg/mL. Vero cells withstand 24 h treatment of both extract, and it is evidenced that both acetone and methanol extract of A. marmelos exhibited chemo sensitive property towards cancer cells. GCMS anal. was performed to characterize the active principles of acetone and methanol extracts of A. marmelos. GC MS data revealed the presence of ten major components. Overall, both acetone and methanol extract of A. marmelos found to be promising anti antibacterial and anti-cancer agent however the active principle of these should be isolated and characterized before reaching a concrete scientific conclusion.

International Journal of Pharmaceutical Sciences and Research published new progress about Aegle marmelos. 55099-31-5 belongs to class bromides-buliding-blocks, name is Ethyl 10-bromodecanoate, and the molecular formula is C12H23BrO2, Application In Synthesis of 55099-31-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

LeMahieu, Ronald A. published the artcileSubstituted (aryloxy)alkanoic acids as antagonists of slow-reacting substance of anaphylaxis, Related Products of bromides-buliding-blocks, the main research area is aryloxyalkanoic acid preparation leukotriene antagonist activity; slow reacting substance anaphylaxis antagonist preparation; antiasthmatic aryloxyalkanoic acid preparation.

A series of aryloxyalkanoic acids [e.g., I, X = CH2)5, n = 3] containing the 4-acetyl-3-hydroxy-2-propylphenoxy moiety of the standard slow-reacting substances of anaphylaxis (SRS-A) antagonist, FPL-55712, was prepared Thus, dihydroxypropylacetophenone II (R = R1 = H) was successively alkylated by treatment with Br(CH2)3CO2Et and K2CO3 in DMF, followed by Br(CH2)5Br in Me2CO to give II [R = Br(CH2)5, R1 = EtO2C(CH2)3] which was treated with II (R = R1 = H) and K2CO3, and then NaOH in aqueous MeOH to give I [X = (CH2)5, n = 3]. The compounds were evaluated for their ability to antagonize SRS-A-induced contractions of guinea pig ilea and leukotriene E4-induced bronchoconstriction in the guinea pig. The results showed that the compounds were all less potent than FPL-55712 in vitro, yet surprisingly, most were more potent by the inhalation route of administration. Some of the most potent analogs were selected for further pharmacol. evaluation and exhibited selective antagonism of leukotrienes as compared with platelet activating factor or histamine. In comparison to FPL-55712, compounds I [X = (CH2)5 n = 1] and I [X = (CH2)3O(CH2)3, n = 3] were more potent against leukotriene E4 and (40- and 80-fold, resp.), leukotriene D4 (4- and 3-fold, resp.), and leukotriene C4 (27- and 20-fold, resp.) induced bronchoconstriction when tested by inhalation.

Journal of Medicinal Chemistry published new progress about Antiasthmatics. 58929-72-9 belongs to class bromides-buliding-blocks, name is 1-Bromo-3-(3-bromopropoxy)propane, and the molecular formula is C6H12Br2O, Related Products of bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Beibei published the artcileSurface Functionalization of Zinc Oxide by Carboxyalkylphosphonic Acid Self-Assembled Monolayers, Quality Control of 55099-31-5, the main research area is carboxyalkylphosphonic acid self assembled monolayer zinc oxide antibody biosensor.

Two carboxyalkylphosphonic acids (HOOC(CH2)nP(O)(OH)2, n = 2 for 3-PPA and n = 9 for 10-PDA) were deposited onto 1-dimensional zinc oxide (ZnO) nanowires and bare ZnO wafers to form stable self-assembled monolayers (SAMs). The samples were systematically characterized using wettability, at. force microscopy (AFM), FTIR spectroscopy (FTIR), and XPS. 3-PPA was bound to the ZnO surfaces mainly through the CO2H headgroup, and 10-PDA formed self-assembled monolayers on the nanoscaled ZnO surface through the PO3H2 headgroups. To verify the potential use of the functionalized surfaces in the construction of biosensors or bioelectronics, IgG protein immobilization through SAM bridging was demonstrated. This work expands the application of phosphonic acid-based surface functionalization on sensing and optoelectronic devices.

Langmuir published new progress about Binding energy. 55099-31-5 belongs to class bromides-buliding-blocks, name is Ethyl 10-bromodecanoate, and the molecular formula is C12H23BrO2, Quality Control of 55099-31-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Bugday, Nesrin published the artcilePalladium nanoparticle supported on nitrogen-doped porous carbon: Investigation of structural properties and catalytic activity on Suzuki-Miyaura reactions, Computed Properties of 452-63-1, the main research area is nitrogen doped porous carbon supported palladium nanoparticle preparation; phenylboronic acid halobenzene palladium catalyst Suzuki Miyaura coupling green; biphenyl preparation.

Novel palladium-doped nanoporous carbon composite material obtained via thermolysis of amorphous zeolitic imidazolate framework (aZIF) was synthesized and used as an efficient catalyst on Suzuki-Miyaura cross-coupling reactions of aryl bromides. With this developed catalytic system, the Suzuki-Miyaura cross-coupling reaction was accomplished in aqueous solutions, and biaryls were obtained in good to excellent yields in a short reaction time. The APC-750@Pd catalyst was characterized by Fourier Transform IR spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Eicroscopy (SEM), XPS, Transmission Electron Microscopy (TEM), Thermal Gravimetric Anal. (TGA), DTA (DTA), Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Brunauer-Emmett-Teller (BET) anal. tecniques. N-doped porous carbon material (NPC-1000) was synthesized by thermolysis from aZIF. Activated porous carbon material (APC-750) was fabricated via fused at 750°C with KOH from NPC-1000. The APC-750@Pd was obtained as a result of the interaction of APC-750 and PdCl2 in deionized water. The cross-coupling reaction of different aryl bromides with phenylboronic acid was investigated to show the potential of the APC-750@Pd in the Suzuki-Miyaura cross-coupling reactions. The APC-750@Pd catalyst could be recycled at least five times with a 15% loss of catalytic efficiency in this catalytic system.

Applied Organometallic Chemistry published new progress about Binding energy. 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, Computed Properties of 452-63-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Lalitha, R. published the artcilePhytochemical analysis of Scinaia bengalica by GC-MS, Product Details of C12H23BrO2, the main research area is Scinaia oleic octanoic acid calcitriol hexadecanol.

Marine red algae consist of various medicinal activities. Marine sources are more active than the other natural sources. One of the most important red algae is Scinaia Bengalica(SB)known for its phytochem. anal. by GC-MS revealed 19 chem. constituents. SB consist major constituents like oleic acid, octanoic acid, 2 hexyl-1-octanol,hexadecanol, calcitriol, bromine compounds

International Journal of ChemTech Research published new progress about Phytochemicals. 55099-31-5 belongs to class bromides-buliding-blocks, name is Ethyl 10-bromodecanoate, and the molecular formula is C12H23BrO2, Product Details of C12H23BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Xiong, Rui published the artcileNovel Selective Estrogen Receptor Downregulators (SERDs) Developed against Treatment-Resistant Breast Cancer, Category: bromides-buliding-blocks, the main research area is estrogen receptor downregulator SERD antitumor breast cancer.

Resistance to the selective estrogen receptor modulator (SERM) tamoxifen and to aromatase inhibitors that lower circulating estradiol occurs in up to 50% of patients, generally leading to an endocrine-independent ER+ phenotype. Selective ER downregulators (SERDs) are able to ablate ER and thus theor. to prevent survival of both endocrine-dependent and independent ER+ tumors. The clin. SERD, fulvestrant, is hampered by i.m. administration and undesirable pharmacokinetics. Novel SERDs were designed using the 6-OH-benzothiophene (BT) scaffold common to arzoxifene and raloxifene. Treatment-resistant (TR) ER+ cell lines (MCF-7:5C and MCF-7:TAM1) were used for optimization, followed by validation in the parent endocrine-dependent cell line (MCF-7:WS8), in 2D and 3D cultures, using ERα in-cell westerns, ERE-luciferase, and cell viability assays, with GDC-0810 (ARN-810) used for comparison. Two BT SERDs with superior in vitro activity to GDC-0810 were studied for bioavailability and shown to cause regression of a TR, endocrine-independent ER+ xenograft superior to GDC-0810.

Journal of Medicinal Chemistry published new progress about Antiestrogens. 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Baragana, Beatriz published the artcileDiscovery of a Quinoline-4-carboxamide Derivative with a Novel Mechanism of Action, Multistage Antimalarial Activity, and Potent in Vivo Efficacy, Product Details of C11H13BrFNO, the main research area is quinoline carboxamide derivative preparation malaria translation elongation factor.

The antiplasmodial activity, DMPK properties, and efficacy of a series of quinoline-4-carboxamides are described. This series was identified from a phenotypic screen against the blood stage of Plasmodium falciparum (3D7) and displayed moderate potency but with suboptimal physicochem. properties and poor microsomal stability. The screening hit (1, EC50 = 120 nM) was optimized to lead mols. with low nanomolar in vitro potency. Improvement of the pharmacokinetic profile led to several compounds showing excellent oral efficacy in the P. berghei malaria mouse model with ED90 values below 1 mg/kg when dosed orally for 4 days. The favorable potency, selectivity, DMPK properties, and efficacy coupled with a novel mechanism of action, inhibition of translation elongation factor 2 (PfEF2), led to progression of 2 (DDD107498) to preclin. development.

Journal of Medicinal Chemistry published new progress about Antimalarials. 338454-98-1 belongs to class bromides-buliding-blocks, name is 4-(4-Bromo-2-fluorobenzyl)morpholine, and the molecular formula is C11H13BrFNO, Product Details of C11H13BrFNO.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary