bromides-buliding-blocks Archives - Page 882 of 1419

DeLeon, Chelsea’s team published research in ACS Chemical Neuroscience in 2022-04-20 | 51605-97-1

ACS Chemical Neuroscience published new progress about Biological ion transport, calcium. 51605-97-1 belongs to class bromides-buliding-blocks, and the molecular formula is C9H12BrN, Recommanded Product: 2-Bromo-4-isopropylaniline.

DeLeon, Chelsea; Pemberton, Kyle; Green, Michael; Kalajdzic, Vanja; Rosato, Martina; Xu, Fenglian; Arnatt, Christopher published the artcile< Novel GPER Agonist, CITFA, Increases Neurite Growth in Rat Embryonic (E18) Hippocampal Neurons>, Recommanded Product: 2-Bromo-4-isopropylaniline, the main research area is GPER GPER30 agonist CITFA neurite growth hippocampus antagonist neurodevelopment; Estrogen; G-protein coupled estrogen receptor (GPER/GPR30); agonist; antagonist neurodevelopment; calcium signaling; embryonic primary culture; hippocampus; neurite outgrowth.

Numerous studies have reported neuroprotective and procognitive effects of estrogens. The estrogen 17β-estradiol (E2) activates both the classical nuclear estrogen receptors ERα and ERβ as well as the G protein-coupled estrogen receptor (GPER). The differential effects of targeting the classical estrogen receptors over GPER are not well-understood. A limited number of selective GPER compounds have been described. In this study, 10 novel compounds were synthesized and exhibited half-maximal effective concentration values greater than the known GPER agonist G-1 in calcium mobilization assays performed in nonadherent HL-60 cells. Of these compounds, 2-cyclohexyl-4-isopropyl-N-((5-(tetrahydro-2H-pyran-2-yl)furan-2-yl)methyl)aniline, referred to as CITFA, significantly increased axonal and dendritic growth in neurons extracted from embryonic day 18 (E18) fetal rat hippocampal neurons. Confirmation of the results was performed by treating E18 hippocampal neurons with known GPER-selective antagonist G-36 and challenging with either E2, G-1, or CITFA. Results from these studies revealed an indistinguishable difference in neurite outgrowth between the treatment and control groups, exhibiting that neurite outgrowth in response to G-1 and CITFA originates from GPER activation and can be abolished with pretreatment of an antagonist. Subsequent docking studies using a homol. model of GPER showed unique docking poses between G-1 and CIFTA. While docking poses differed between the ligands, CIFTA exhibited more favorable distance, bond angle, and strain for hydrogen-bonding and hydrophobic interactions.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kil, Kun-Eek’s team published research in Journal of Medicinal Chemistry in 2014-11-13 | 82-73-5

Journal of Medicinal Chemistry published new progress about Allosterism. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, COA of Formula: C8H3BrO3.

Kil, Kun-Eek; Poutiainen, Pekka; Zhang, Zhaoda; Zhu, Aijun; Choi, Ji-Kyung; Jokivarsi, Kimmo; Brownell, Anna-Liisa published the artcile< Radiosynthesis and Evaluation of an 18F-Labeled Positron Emission Tomography (PET) Radioligand for Metabotropic Glutamate Receptor Subtype 4 (mGlu4)>, COA of Formula: C8H3BrO3, the main research area is fluorine labeled PET radioligand metabotropic glutamate receptor subtype 4; chlorophenylpicolinamide phthalimide derivative fluorine labeled PET radioligand mGlu4.

Four 4-phthalimide derivatives of N-(3-chlorophenyl)-2-picolinamide were synthesized as potential ligands for the PET imaging of mGlu4 in the brain. Of these compounds, N-(3-chloro-4-(4-fluoro-1,3-dioxoisoindolin-2-yl)phenyl)-2-picolinamide (3, III, KALB001) exhibited improved binding affinity (IC50 = 5.1 nM) compared with ML128 (1, I) and was subsequently labeled with 18F. When finally formulated in 0.1 M citrate buffer (pH 4) with 10% ethanol, the specific activity of [18F]3 at the end of synthesis (EOS) was 233.5 ± 177.8 GBq/μmol (n = 4). The radiochem. yield of [18F]3 was 16.4 ± 4.8% (n = 4), and the purity was over 98%. In vivo imaging studies in a monkey showed that the radiotracer quickly penetrated the brain with the highest accumulation in the brain areas known to express mGlu4. Despite some unfavorable radiotracer properties like fast washout in rodent studies, [18F]3 is the first 18F-labeled mGlu4 radioligand, which can be further modified to improve pharmacokinetics and brain penetrability for future human studies.

Journal of Medicinal Chemistry published new progress about Allosterism. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, COA of Formula: C8H3BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Soucy, C’s team published research in Journal of Organic Chemistry in 1987-01-09 | 82-73-5

Journal of Organic Chemistry published new progress about LUMO (molecular orbital). 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Category: bromides-buliding-blocks.

Soucy, C.; Favreau, D.; Kayser, M. M. published the artcile< The regioselectivity of metal hydride reductions of 3-substituted phthalic anhydrides>, Category: bromides-buliding-blocks, the main research area is phthalide substituted; phthalic anhydride substituted hydride reduction; regiochem reduction substituted phthalic anhydride.

The reduction of 3-methoxyphthalide by metal hydrides was reinvestigated. Various effects controlling selectivity of reductions in 3-substituted phthalides were studied, and a qual. interpretation of the results was proposed. Methods for obtaining enhanced yields of one or the other lactonic product were developed.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

White, Nicholas A’s team published research in Journal of the American Chemical Society in 2015-08-19 | 3893-18-3

Journal of the American Chemical Society published new progress about Enantioselective synthesis. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Formula: C9H7BrO.

White, Nicholas A.; Rovis, Tomislav published the artcile< Oxidatively Initiated NHC-Catalyzed Enantioselective Synthesis of 3,4-Disubstituted Cyclopentanones from Enals>, Formula: C9H7BrO, the main research area is NHC catalyst oxidative enantioselective cyclization aryl enal; cyclopentanone stereoselective preparation.

An unprecedented N-heterocyclic carbene (NHC)-catalyzed annulation of enals to form 3,4-disubstituted cyclopentanones, e.g. I, has been discovered. Aryl enals undergo dimerization in the presence of a single-electron oxidant to form C2 sym. cyclopentanones. A cross-reaction has also been developed, allowing for the synthesis of differentially substituted cyclopentanones. Mechanistically, the reaction is thought to proceed through radical intermediates, further establishing the synthetic utility of this class of reactivity.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Geng, Zhi-Cong’s team published research in Journal of Organic Chemistry in 2014-11-21 | 3893-18-3

Journal of Organic Chemistry published new progress about Aldol condensation. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Application In Synthesis of 3893-18-3.

Geng, Zhi-Cong; Zhang, Shao-Yun; Li, Nai-Kai; Li, Ning; Chen, Jian; Li, Hai-Yan; Wang, Xing-Wang published the artcile< Organocatalytic Diversity-Oriented Asymmetric Synthesis of Tricyclic Chroman Derivatives>, Application In Synthesis of 3893-18-3, the main research area is diphenylprolinol trimethylsilyl ether catalyst Michael aldol Diels Alder reaction; hydroxyaryloxobutenoate enal aldol Diels Alder reaction; organocatalytic diversity oriented asym synthesis tricyclic chroman derivative.

The tandem oxo-Michael-IED/HDA (inverse-electron-demand hetero-Diels-Alder) and oxo-Michael-IED/HDA-Michael-Aldol condensation transformations between (E)-2-hydroxyaryl-2-oxobut-3-enoate derivatives with enals have been developed in the presence of (S)-diphenylprolinol trimethylsilyl ether as an organocatalyst. Two types of tricyclic chroman derivatives, e.g. I and II, were, resp., obtained, by adjusting the reactant ratio and reaction temperature, in good yields (up to 96%) with excellent enantioselectivities (up to >99%) and good diastereoselectivities (up to >30/1). It should be noted that the divergent chiral chroman derivatives were obtained by successive reaction of (E)-2-hydroxyaryl-2-oxobut-3-enoate derivatives with two different enal substrates in highly catalytic results.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Fei, Nannan’s team published research in Organic Electronics in 2020-03-31 | 184239-35-8

Organic Electronics published new progress about Aggregation-induced emission. 184239-35-8 belongs to class bromides-buliding-blocks, and the molecular formula is C26H18Br2, Electric Literature of 184239-35-8.

Fei, Nannan; Wei, Qiang; Cao, Liang; Bai, Yongqi; Ji, Honglei; Peng, Ruixiang; Huang, Like; Hao, Shiyou; Ge, Ziyi published the artcile< A symmetric nonpolar blue AIEgen as nondoped fluorescent OLED emitter with low efficiency roll-off>, Electric Literature of 184239-35-8, the main research area is organic light emitting diode aggregation induced emission.

Blue emitters are necessary for achieving full-color displaying OLEDs, however, most blue emitters show low efficiency, short lifetime or serious efficiency roll-off, hindering the development of OLED techniques. In this research, a nonpolar sym. aggregation-induced emission (AIE) emitter was designed and constructed through facile steps, with the triphenylamine-end, anthracene-spacer and tetraphenylethene (TPE)-center. This emitter exhibited good thermal stability and aggregation-enhanced emission (AEE) characteristics, based on which non-doped blue OLED device was readily fabricated with the maximum external quantum efficiency (EQE) of 2.7% and also with no efficiency roll-off even at 1000 cd m-2, indicative of high efficiency and good stability as fluorescent emitter.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Fan, Qiangwen’s team published research in New Journal of Chemistry in 2021 | 3959-07-7

New Journal of Chemistry published new progress about Aralkyl amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Formula: C7H8BrN.

Fan, Qiangwen; Zhu, Longwei; Li, Xuhuai; Ren, Huijun; Zhu, Haibo; Wu, Guorong; Ding, Jianhua published the artcile< Visible-light photocatalytic selective oxidation of amine and sulfide with CsPbBr3 as photocatalyst>, Formula: C7H8BrN, the main research area is imine aldehyde sulfoxide preparation; amine sulfide photocatalytic oxidation cesium lead bromide.

Using a readily accessible and high-efficiency photocatalyst for inducing chem. transformations is highly desirable. All inorganic lead halide perovskites (APbX3, X = Cl, Br, I) are utilized intensively in photovoltaics providing outstanding optoelectronic performance and are easy-to-process, but their use in organic synthesis is still in its infancy. Herein, a facile protocol for the photocatalytic oxidation of a series of amines and sulfides to their corresponding imines and sulfoxides with excellent yields and selectivity using CsPbBr3 as a visible-light catalyst is reported. The result show that amines bearing electron-donating groups give rise to aldehydes as the final products, while amines with electron-withdrawing groups afford imines as the major products. Reaction mechanism studies reveal that the photogenerated holes (h+), superoxide radicals (O2 ̇-) and singlet oxygen are involved in the reaction performed in air and O2 atmospheres. In addition, for the reaction conducted under anaerobic conditions, free radicals generated by amines plays a vital role in determining the transformation of amines to imines.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Akester, Jessica N’s team published research in ACS Infectious Diseases in 2020-07-10 | 20776-50-5

ACS Infectious Diseases published new progress about Antimycobacterial agents. 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Safety of 2-Amino-4-bromobenzoic acid.

Akester, Jessica N.; Njaria, Paul; Nchinda, Aloysius; Le Manach, Claire; Myrick, Alissa; Singh, Vinayak; Lawrence, Nina; Njoroge, Mathew; Taylor, Dale; Moosa, Atica; Smith, Anthony J.; Brooks, Elizabeth J.; Lenaerts, Anne J.; Robertson, Gregory T.; Ioerger, Thomas R.; Mueller, Rudolf; Chibale, Kelly published the artcile< Synthesis, Structure-Activity Relationship, and Mechanistic Studies of Aminoquinazolinones Displaying Antimycobacterial Activity>, Safety of 2-Amino-4-bromobenzoic acid, the main research area is aminoquinazolinone preparation Mycobacterium tuberculosis pharmacokinetic SAR Suzuki antimycobacterial; 2-aminoquinazolinones; Mycobacterium tuberculosis; drug discovery; tuberculosis.

Phenotypic whole-cell screening against Mycobacterium tuberculosis (Mtb) in glycerol-alanine-salts supplemented with Tween 80 and iron (GASTE-Fe) media led to the identification of a 2-aminoquinazolinone hit compound, sulfone which was optimized for solubility by replacing the sulfone moiety with a sulfoxide I. The synthesis and structure-activity relationship (SAR) studies identified several compounds with potent antimycobacterial activity, which were metabolically stable and noncytotoxic. Compound I displayed favorable in vitro properties and was therefore selected for in vivo pharmacokinetic (PK) studies where it was found to be extensively metabolized to the sulfone. Both derivatives exhibited promising PK parameters; however, when I was evaluated for in vivo efficacy in an acute TB infection mouse model, it was found to be inactive. In order to understand the in vitro and in vivo discrepancy, compound I was subsequently retested in vitro using different Mtb strains cultured in different media. This revealed that activity was only observed in media containing glycerol and led to the hypothesis that glycerol was not used as a primary carbon source by Mtb in the mouse lungs, as has previously been observed Support for this hypothesis was provided by spontaneous-resistant mutant generation and whole genome sequencing studies, which revealed mutations mapping to glycerol metabolizing genes indicating that the 2-aminoquinazolinones kill Mtb in vitro via a glycerol-dependent mechanism of action.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Canh Pham, Em’s team published research in ACS Omega in 2022-09-20 | 3959-07-7

ACS Omega published new progress about Absorption. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, SDS of cas: 3959-07-7.

Canh Pham, Em; Truong, Tuyen Ngoc published the artcile< Design, Microwave-Assisted Synthesis, Antimicrobial and Anticancer Evaluation, and In Silico Studies of Some 2-Naphthamide Derivatives as DHFR and VEGFR-2 Inhibitors>, SDS of cas: 3959-07-7, the main research area is naphthamide preparation microwave antibacterial antifungal anticancer DHFR VEGFR inhibitor.

Naphthamide is a common structural framework with diverse pharmacol. activities. Ten novel 2-naphthamide derivatives I (R = 3-(morpholin-4-yl)propyl, (4-methylphenyl)methyl, (4-methoxyphenyl)methyl, (4-bromophenyl)methyl, (4-chlorophenyl)methyl; R1 = H, OMe; R2 = H, OMe; R3 = H, OMe; R4 = H, OMe) have been designed, synthesized, and evaluated for their in vitro antibacterial, antifungal, and anticancer activities. The title compounds were synthesized from dimethoxybenzaldehyde derivatives such as 2,4-dimethoxybenzaldehyde and 3,5-dimethoxybenzaldehyde through a four-step microwave-assisted synthesis process. The structures were confirmed by 1H NMR, 13C NMR, and MS spectra. Compound I [R = (4-chlorophenyl)methyl ; R1 = R3 = H; R2 = R4 = OMe] (II) showed good antibacterial activity against Escherichia coli, Streptococcus faecalis, Salmonella enterica, MSSA, and MRSA with MIC values of 16, 16, 16, 8, and 16 μg/mL, resp., compared to ciprofloxacin (MIC = 8-16 μg/mL). Compounds I (R = (4-methylphenyl)methyl ; R1 = R3 = H; R2 = R4 = OMe)(III) (IC50 = 3.59-8.38 μM) and II (IC50 = 2.97-7.12 μM) exhibited good cytotoxic activity against C26, HepG2, and MCF7 cancer cell lines as compared to paclitaxel (IC50 = 2.85-5.75 μM). Moreover, compounds II and III exhibited better anticancer activity than PTX against the C26 cell line. In particular, compound II showed potent in vitro VEGFR-2 inhibitory activity with the IC50 value of 0.384 μM compared with sorafenib (IC50 = 0.069 μM). Therefore, compound II is the most potent compound for anticancer activity as indicated by in vitro cell line inhibition, in silico ADMET, mol. docking, and in vitro VEGFR-2 inhibition studies.

ACS Omega published new progress about Absorption. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, SDS of cas: 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chen, Wei-Li’s team published research in Green Chemistry in 2021 | 3959-07-7

Green Chemistry published new progress about Aromatic amines Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Category: bromides-buliding-blocks.

Chen, Wei-Li; Li, Kun; Liao, Wei-Cong; Liang, Wang-Fu; Qiu, Pei-Wen; Liang, Cui; Su, Gui-Fa; Mo, Dong-Liang published the artcile< An iron(III)-catalyzed dehydrogenative cross-coupling reaction of indoles with benzylamines to prepare 3-aminoindole derivatives>, Category: bromides-buliding-blocks, the main research area is amino indole derivative green preparation diastereoselective; indole benzylamine dehydrogenative cross coupling iron catalyst.

A green cascade approach to prepare a variety of 3-aminoindole derivatives I [R1 = H, 7-Me, 6-Cl, etc.; R2 = H, Me; R3 = Ph, 3-BrC6H4, 2-naphthyl, etc.; R4 = Ph, 2-FC6H4, 3-pyridyl, etc.; R5 = H, Et, Ph] in good to excellent yields through an iron(III)-catalyzed dehydrogenative cross-coupling reaction of 2-arylindoles and primary benzylamines under mild reaction conditions was reported. The reaction showed a broad substrate scope of indoles and benzylamines and tolerated a wide range of functional groups. Moreover, the reaction was easily performed at the gram scale without producing waste after the reaction was completed. The present method highlighted readily available starting materials, a simple purification procedure and the usage of cheap, nontoxic and environmentally benign iron(III) catalyst.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary