Category: bromides-buliding-blocks

Bhaumik, Asish; Eswaraiah, M. Chinna; Chakraborty, Raja published the artcile< Evaluation of antimicrobial profile of some novel 1, 3, 4-oxadiazole derivatives followed by molecular docking against 3G7E bacterial DNA gyrase>, Electric Literature of 16426-64-5, the main research area is oxadiazole derivative preparation mol docking 3G7E bacterial DNA gyrase; physicochem property antibacterial antifungal oxadiazole derivative preparation.

Design, synthesis, spectral characterization and evaluation of in vitro antimicrobial profile of some novel oxadiazole derivatives I [R = 4-NH2, 2-Br, 4-NO2, etc.] followed by mol. docking studies against bacterial DNA gyrase. The mol. structures of the synthesized compounds were assigned by IR, NMR and mass spectral anal. Mol. docking studies were carried out by AUTO DOCK program. The in vitro antibacterial and antifungal activities of compounds I were done by paper disk diffusion and agar streak dilution technique. In silico mol. docking studies the binding energy of synthesized compounds I were found to be -7.66, -7.67, -7.12, – 7.12, -6.59, -6.46, -7.35, -5.09 which indicated that the compounds had the high binding affinity toward the bacterial DNA gyrase with PDB id 3G7E and inhibit the function topoisomerase in comparison with standard drug ciprofloxacin (-7.44). The preliminary antimicrobial screening displayed that most of the synthesized compounds I were executed moderate to good antimicrobial activity against following bacteria: S. aureus (ATCC 9144), B. subtilis (ATCC 6633), S. epidermidis (ATCC 12228), P. Aeruginosa (ATCC27853), E.coli (ATCC25922), V. cholerrae (ATCC14035) and fungi: A. Niger (ATCC 9029), A.flavus (ATCC204304), C. albicans (ATCC10231) and B. dermatitis (ATCC 26199) etc. All the synthesized compounds I exhibited moderate to good antibacterial and antifungal activity with an MIC range of 12-37μg/mL. Among these eight synthesized oxadiazole derivatives, compound I [R = 4-NH2, 2,4-Cl2, 3,5-(NO2)2] were found to be very good antibacterial as well as antifungal potentiality with an MIC range of 13-12μg/mL; 7-10μg/mL and 15-18μg/mL.

Journal of Drug Delivery and Therapeutics published new progress about Acids Role: RCT (Reactant), RACT (Reactant or Reagent). 16426-64-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrNO4, Electric Literature of 16426-64-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Lei; Zhang, Wangqin; Xu, Chao; He, Jiaying; Xu, Zhenhui; Yang, Zehui; Ling, Fei; Zhong, Weihui published the artcile< Electrosynthesis of CF3-Substituted Polycyclic Quinazolinones via Cascade Trifluoromethylation/Cyclization of Unactivated Alkene>, HPLC of Formula: 20776-50-5, the main research area is alkenyl quinazolinone sodium triflinate electrochem tandem trifluoromethylation cyclization; trifluoroethyl fused quinazolinone preparation.

An atom and step economy cascade trifluoromethylation/cyclization of unactivated alkenes with Langlois reagent as a CF3 source was described. A variety of polycyclic quinazolinones were successfully synthesized in 52-81% yields under transition metal- and oxidant-free conditions. The Langlois reagent used in this strategy as a CF3 reagent possessed the advantages of bench-stablity, cost-effectivity and high-efficiency. Addnl., gram-scale reaction, broad substrate scope and good functional group tolerance demonstrated the synthetic usefulness of this protocol.

Advanced Synthesis & Catalysis published new progress about Electrochemical cyclization. 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, HPLC of Formula: 20776-50-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shan, Chao; Cao, Liming; Yang, Jiasheng; Cheng, Ruihua; Yao, Xiantong; Liang, Chaoming; Sun, Maolin; Ye, Jinxing published the artcile< Construction of an α-chiral pyrrolidine library with a rapid and scalable continuous flow protocol>, Safety of 2,4,6-Trimethylbromobenzene, the main research area is chloro tert butanesulfinyl imine grignard reagent continuous flow heterocyclization; tert butylsulfinyl pyrrolidine preparation enantioselective diastereoselective.

An α-chiral pyrrolidine library was established via a highly diastereoselective continuous flow protocol under mild conditions. Various functionalized pyrrolidines was obtained in generally high yields (up to 87%) and with superior diastereocontrol within 150 s. The utility of this flow methodol. was further demonstrated by the gram-scale preparation of a κ-opioid receptor selective antagonist Aticaprant intermediate. Moreover, the scale-up in a self-designed microfluidic reactor provided a throughput of 7.45 g h-1, suggesting its potential large-scale applications. The flow procedure afforded rapid, cost-efficient and scalable access to obtain chiral α-substituted pyrrolidines in the compound library.

Reaction Chemistry & Engineering published new progress about Bromoalkanes Role: RCT (Reactant), RACT (Reactant or Reagent). 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Safety of 2,4,6-Trimethylbromobenzene.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Stull, Savannah M.; Mei, Liangyong; Gianetti, Thomas L. published the artcile< Red-Light-Induced N,N'-Dipropyl-1,13-dimethoxyquinacridinium-Catalyzed [3+2] Cycloaddition of Cyclopropylamines with Alkenes or Alkynes>, Formula: C7H4BrF3, the main research area is cyclopropylamine alkene dipropyl dimethoxyquinacridinium catalyst photochem diastereoselective cycloaddition; cyclopentanamine preparation; alkyne cyclopropylamine dipropyl dimethoxyquinacridinium photochem diastereoselective cycloaddition; cyclopentenamine preparation.

A red-light-mediated [3+2] annulation of cyclopropylamines with akenes or alkynes in the presence of N, N’-dipropyl-1,13-dimethoxyquinacridinium was reported. An array of cyclopentane or cyclopentene derivatives with diverse functional groups were obtained in moderate to excellent yields under mild conditions.

Synlett published new progress about [3+2] Cycloaddition reaction catalysts (stereoselective, photochem.). 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Formula: C7H4BrF3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Rabal, Obdulia; Sanchez-Arias, Juan A.; Cuadrado-Tejedor, Mar; de Miguel, Irene; Perez-Gonzalez, Marta; Garcia-Barroso, Carolina; Ugarte, Ana; Estella-Hermoso de Mendoza, Ander; Saez, Elena; Espelosin, Maria; Ursua, Susana; Tan, Haizhong; Wu, Wei; Xu, Musheng; Pineda-Lucena, Antonio; Garcia-Osta, Ana; Oyarzabal, Julen published the artcile< Multitarget Approach for the Treatment of Alzheimer's Disease: Inhibition of Phosphodiesterase 9 (PDE9) and Histone Deacetylases (HDACs) Covering Diverse Selectivity Profiles>, Name: Ethyl 5-bromothiophene-2-carboxylate, the main research area is Alzheimer’s disease HDAC inhibition PDE9 inhibition HDAC6 dual inhibitors; Alzheimer’s disease; HDAC6; dual inhibitors; histone deacetylase inhibition; phosphodiesterase 9 inhibition.

Here, we present a series of dual-target phosphodiesterase 9 (PDE9) and histone deacetylase (HDAC) inhibitors devised as pharmacol. tool compounds for assessing the implications of these two targets in Alzheimer’s disease (AD). These novel inhibitors were designed taking into account the key pharmacophoric features of known selective PDE9 inhibitors as well as privileged chem. structures, bearing zinc binding groups (hydroxamic acids and ortho-amino anilides) that hit HDAC targets. These substituents were selected according to rational criteria and previous knowledge from our group to explore diverse HDAC selectivity profiles (pan-HDAC, HDAC6 selective, and class I selective) that were confirmed in biochem. screens. Their functional response in inducing acetylation of histone and tubulin and phosphorylation of cAMP response element binding (CREB) was measured as a requisite for further progression into complete in vitro absorption, distribution, metabolism and excretion (ADME) and in vivo brain penetration profiling. Compound 31b, a selective HDAC6 inhibitor with acceptable brain permeability, was chosen for assessing in vivo efficacy of these first-in-class inhibitors, as well as studying their mode of action (MoA).

ACS Chemical Neuroscience published new progress about Alzheimer disease. 5751-83-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H7BrO2S, Name: Ethyl 5-bromothiophene-2-carboxylate.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhan, Yizhou; Liu, Tao; Ren, Jun; Wang, Zhongwen published the artcile< Lewis Acid-Catalyzed Intramolecular [3+2] Cross-Cycloaddition of Aziridine 2,2-Diesters with Conjugated Dienes for Construction of Aza-[n.2.1] Skeletons>, Quality Control of 89003-95-2, the main research area is Lewis acid intramol cross cycloaddition aziridine diester conjugate diene; aza skeleton preparation; aziridine; bridged ring; cycloaddition; medium-sized ring; regioselectivity.

A novel Lewis acid-catalyzed [3+2] intramol. cross-cycloaddition (IMCC) between aziridine 2,2-diesters and conjugated dienes has been developed. This is the first regiospecific IMCC of intramol. 1,3-dipolar cycloadditions of azomethine ylides with carbon=carbon double bonds, and supplies a general and efficient strategy for construction of structurally complex and diverse aza-[n.2.1] skeletons, e.g. I. The [3+2]IMCC could be carried out under mild conditions and in gram scale. More importantly, 3-alkyl-substituted aziridines were also successful. The excellent structural diversity, the facile operation and the versatile post-modifications will support the applications of the [3+2]IMCC in natural products synthesis and drugs discovery.

Chemistry – A European Journal published new progress about Aziridines Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 89003-95-2 belongs to class bromides-buliding-blocks, and the molecular formula is C8H4BrNO, Quality Control of 89003-95-2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Wei; Cha, Xue-Xiang; Reiner, John; Gao, Yuan; Qiao, Hai-Ling; Shen, Jia-Xiang; Chang, Jun-Biao published the artcile< Synthesis and biological activity of n-butylphthalide derivatives>, Computed Properties of 82-73-5, the main research area is butylphthalide derivative preparation vasorelaxant.

A series of n-butylphthalide derivatives were designed and synthesized. The in vitro activities of these compounds were evaluated by a resting tension of isolated rat thoracic aorta ring assay. Compounds I (R = F, Br) were found to be more active than n-butylphthalide.

European Journal of Medicinal Chemistry published new progress about Cardiovascular disease. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Computed Properties of 82-73-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Renjie; Wang, Yixin; Yan, Qiang published the artcile< CO2-Strengthened Double-Cross-Linked Polymer Gels from Frustrated Lewis Pair Networks>, Quality Control of 576-83-0, the main research area is CO2 strengthened polymer frustrated Lewis pair network; carbon dioxide utilization; double cross-linked networks; frustrated Lewis pairs; polymer gels; stimuli responsive materials.

Conventional thermosets consisting of polymer networks with robust and irreversible chem. linkages are incapable of reshaping or reprocessing once formed. In contrast, reversible non-covalent crosslinks can impart structurally flexible and reconfigurable feature to the networks, but at the expense of certain mech. strength. The integration of fixed covalent bonds and noncovalent bonds into these materials can usually attain enhanced mech. properties and meanwhile provide dynamic and adaptable functions, such as responsive and healing ability to external stimuli. Here a double-crosslinked frustrated Lewis pair network (FLPN) is developed through a specific three-component reaction among triarylborane, triarylphosphine, and CO2, which is composed of permanent chem. crosslinks and dynamic CO2 gas-bridged connections. The amount of CO2 added can regulate the d. of supramol. node in such FLPN, so as to control the strength and toughness of the gel material. Moreover, the broken gel can be rapidly healed by CO2 stimulus through the reconstruction of dynamic covalent network. This study will inspire a new way to create gas-based smart materials by incorporating frustrated Lewis pair chem. into traditional gel system.

Macromolecular Rapid Communications published new progress about Fracture toughness. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Quality Control of 576-83-0.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary