Category: bromides-buliding-blocks

Zhang, Chen published the artcileDesign, Synthesis, and Evaluation of a Series of Novel Benzocyclobutene Derivatives as General Anesthetics, Application of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, the publication is Journal of Medicinal Chemistry (2017), 60(9), 3618-3625, database is CAplus and MEDLINE.

In the present work, a series of structurally novel benzocyclobutene derivatives were identified as general anesthetics through the loss of righting reflex (LORR) experiment on mice. Our initial efforts found compound 1a with a fused four-membered ring on the 2,3-position of the phenol ring could significantly improve the safety profile. Further SAR study revealed that small hydrogen bond acceptor (HBA) groups are optimal for good ED₅₀ along with much broader therapeutic windows, such as compounds 16b and 17. Present work demonstrates the superiority of this novel benzocyclobutene scaffold.

Journal of Medicinal Chemistry published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C6H5N3S, Application of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Kong, Qunshou published the artcileN-Arylimidazoliums as Highly Selective Biomimetic Antimicrobial Agents, HPLC of Formula: 111-83-1, the publication is Journal of Medicinal Chemistry (2022), 65(16), 11309-11321, database is CAplus and MEDLINE.

Antibiotic resistance has become one of the greatest health threats in the world. In this study, a charge-dispersed dimerization strategy is described for the antimicrobial peptide (AMP) mimics via a tunable cationic charge to improve the selectivity between prokaryotic microbes and eukaryotic cells. This strategy is demonstrated with a series of charge-dispersed AMP mimics based on N-arylimidazolium skeletons. These N-arylimidazolium AMP mimics show potent antibacterial activity against strains along with a low rate of drug resistance, good hemocompatibility, and low cytotoxicity. In addition to the elimination of planktonic bacteria, N-arylimidazolium AMP mimics can also inhibit biofilm formation and destroy the established biofilm. More importantly, methicillin-resistant Staphylococcus aureus (MRSA)-induced lung-infected mice can be effectively treated by the i.v. administration of N-arylimidazolium AMP mimic, which enable the design of N-arylimidazolium AMP mimics to offer an alternative avenue to eradicate drug-resistant bacterial infection.

Journal of Medicinal Chemistry published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, HPLC of Formula: 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Nykaza, Trevor V. published the artcileP^III/P^V=O Catalyzed Cascade Synthesis of N-Functionalized Azaheterocycles, Quality Control of 189748-25-2, the publication is Angewandte Chemie, International Edition (2020), 59(11), 4505-4510, database is CAplus and MEDLINE.

An organocatalytic method for the modular synthesis of diverse N-aryl and N-alkyl azaheterocycles (indoles, oxindoles, benzimidazoles, and quinoxalinediones) is reported. The method employs a small-ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane P-oxide) and a hydrosilane reductant to drive the conversion of ortho-functionalized nitroarenes into azaheterocycles through sequential intermol. reductive C-N cross coupling with boronic acids, followed by intramol. cyclization. This method enables the rapid construction of azaheterocycles from readily available building blocks, including a regiospecific approach to N-substituted benzimidazoles and quinoxalinediones.

Angewandte Chemie, International Edition published new progress about 189748-25-2. 189748-25-2 belongs to bromides-buliding-blocks, auxiliary class Bromide,Nitro Compound,Benzene,Ester, name is Methyl 2-(5-bromo-2-nitrophenyl)acetate, and the molecular formula is C9H8BrNO4, Quality Control of 189748-25-2.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Hou, Rui-zhen published the artcileHydrolysis of 5-(2-haloethyl)-1,3-dioxolanes, COA of Formula: C8H15BrO2, the publication is Jilin Daxue Ziran Kexue Xuebao (2000), 94-95, database is CAplus.

Three different kinds of 1,3-dioxolane compounds were hydrolyzed in an acidic condition. The results showed that tetrahydro-3-furanmethanol (I) was the main product. For example, hydrolysis of 5-(2-iodoethyl)-1,3-dioxolane with aqueous HCl gave 81% I.

Jilin Daxue Ziran Kexue Xuebao published new progress about 97845-58-4. 97845-58-4 belongs to bromides-buliding-blocks, auxiliary class Other Aliphatic Heterocyclic,Bromide, name is 5-(2-Bromoethyl)-2,2-dimethyl-1,3-dioxane, and the molecular formula is C8H15BrO2, COA of Formula: C8H15BrO2.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhang, Rui published the artcileDesign, synthesis, and biological evaluation of tetrahydroisoquinolines derivatives as novel, selective PDE4 inhibitors for antipsoriasis treatment, Safety of 2-Bromoethyl Methyl Sulfone, the publication is European Journal of Medicinal Chemistry (2021), 113004, database is CAplus and MEDLINE.

In this study, a series of novel tetrahydroisoquinoline I [R¹ = CHO, CH₂CH₂SO₂Me, CH₂CO₂Me, etc.; configuration = S, Rac, R], II [R² = Bn, Et; R³ = CO₂Me, CHO, etc.; configuration = S, Rac] and III [R⁴ = Et, Me; R⁵ = 5-phenyl-1H-indolyl, 5-methoxy-1H-indolyl, etc.; configuration = S, Rac] were developed based on the crystal structure of PDE4D in complex with I [R¹ = CHO, configuration = S]. Anti-inflammatory effects of these compounds were evaluated and III [R⁴ = Me, R⁵ = 7-chloro-1H-indolyl, configuration = S] with high safety, permeability and selectivity, exhibited significant inhibitory potency against the enzymic activity of PDE4D and the TNF-α release from the LPS-stimulated RAW 264.7 and hPBMCs. Moreover, an in-vivo study demonstrated that a topical administration of III [R⁴ = Me, R⁵ = 7-chloro-1H-indolyl, configuration = S] achieved more significant efficacy than calcipotriol to improve the features of psoriasis-like skin inflammation. Overall, this study provided a basis for further development of tetrahydroisoquinoline-based PDE4 inhibitors against psoriasis.

European Journal of Medicinal Chemistry published new progress about 16523-02-7. 16523-02-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Sulfone,Aliphatic hydrocarbon chain, name is 2-Bromoethyl Methyl Sulfone, and the molecular formula is C8H16N2O, Safety of 2-Bromoethyl Methyl Sulfone.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Li, Zonglong published the artcileThree-Dimensional Ionic Covalent Organic Frameworks for Rapid, Reversible, and Selective Ion Exchange, Related Products of bromides-buliding-blocks, the publication is Journal of the American Chemical Society (2017), 139(49), 17771-17774, database is CAplus and MEDLINE.

Covalent organic frameworks (COFs) have emerged as functional materials for various potential applications. However, the availability of three-dimensional (3D) COFs is still limited, and nearly all of them exhibit neutral porous skeletons. Here we report a general strategy to design porous pos. charged 3D ionic COFs by incorporation of cationic monomers in the framework. The obtained 3D COFs are built of 3-fold interpenetrated diamond net and show impressive surface area and CO₂ uptakes. The ion-exchange ability of 3D ionic COFs has been highlighted by reversible removal of nuclear waste model ions and excellent size-selective capture for anionic pollutants. This research thereby provides a new perspective to explore 3D COFs as a versatile type of ion-exchange materials.

Journal of the American Chemical Society published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Related Products of bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Liu, Renyong published the artcileImproved synthetic method of captopril, Recommanded Product: 3-Bromo-2-methylpropanoic acid, the publication is Shenyang Yaoke Daxue Xuebao (1997), 14(4), 262-264, database is CAplus.

An improved synthetic method for captopril using methacrylic acid as the starting material was described. Treatment of methacrylic acid with hydrogen bromide gave 3-bromo-2-methylpropanoic acid which underwent chlorination with thionyl chloride, condensation with L-proline gave N-(R,S-3-bromo-2-methylpropanoyl)-L-prolin (I). I was resolved into optically pure stereo-isomer, which was treated with sodium trithiocarbonate to give captopril.

Shenyang Yaoke Daxue Xuebao published new progress about 56970-78-6. 56970-78-6 belongs to bromides-buliding-blocks, auxiliary class Bromide,Carboxylic acid,Aliphatic hydrocarbon chain,Inhibitor, name is 3-Bromo-2-methylpropanoic acid, and the molecular formula is C4H7BrO2, Recommanded Product: 3-Bromo-2-methylpropanoic acid.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Ding, Rui published the artcileA Highly Efficient Method for the Bromination of Alkenes, Alkynes and Ketones Using Dimethyl Sulfoxide and Oxalyl Bromide, Application In Synthesis of 594-81-0, the publication is Synthesis (2018), 50(21), 4325-4335, database is CAplus.

The pairing of DMSO and oxalyl bromide is reported as a highly efficient brominating reagent for various alkenes, alkynes and ketones. This bromination approach demonstrates remarkable advantages, such as mild conditions, low cost, short reaction times, provides excellent yields in most cases and represents a very attractive alternative for the preparation of dibromides and α-bromoketones.

Synthesis published new progress about 594-81-0. 594-81-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 2,3-Dibromo-2,3-dimethylbutane, and the molecular formula is C6H12Br2, Application In Synthesis of 594-81-0.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Li, Qing published the artcileSolution-processible Thieno-[3,4-b]-pyrazine Derivatives with Large Stokes Shifts for Non-doped Red Light-emitting Diodes, Product Details of C4Br2N2O4S, the publication is Macromolecular Rapid Communications (2011), 32(9-10), 736-743, database is CAplus and MEDLINE.

A group of novel thieno-[3,4-b]-pyrazine-cored mols. containing polyphenyl dendrons with or without arylamino or carbazolyl surface groups (DTP, N-DTP and C-DTP) are synthesized and investigated. They are characterized by extra large Stokes shifts of over 250 nm. In addition, to provide the site-isolation effect on the planar emissive core, the bulky dendrons enable these mols. to be solution processible. The peripheral carbazolyl or arylamino units facilitate the hole transporting ability in the neat films of these mols. These dendritic materials are used as a non-doped emitting layer to fabricate organic light-emitting diodes (OLEDs) using a spin coating technique and saturated red emission is obtained. The dendritic mols. with arylamino or carbazolyl surface groups (N-DTP and C-DTP) exhibit a brightness of 1020 cd m^-2 and a luminous efficiency of 0.6 cd A^-1, both higher than the dendritic analog without the surface functional groups (DTP), even superior to the small mol. reference compound which fails to transmit pure red emission under identical conditions. This performance is also comparable with that from vacuum deposited thieno-[3,4-b]-pyrazine-based counterparts and that for some other solution processible red fluorescent dendrimers. This is the first example of solution processible thieno-[3,4-b]-pyrazine derivatives for OLED applications.

Macromolecular Rapid Communications published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Product Details of C4Br2N2O4S.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Li, Qing published the artcileNovel red-emitting thieno-[3,4-b]-pyrazine derivatives suitable for vacuum evaporation and solution method to fabricate non-doped OLEDs, Related Products of bromides-buliding-blocks, the publication is Dyes and Pigments (2012), 92(1), 674-680, database is CAplus.

Two novel red-emitting thieno-[3,4-b]-pyrazine-cored mols. with phenyls (TP) or polyphenyls (Muellen type dendron, DTP) as peripheral groups were designed and synthesized. They have large Stokes shifts over 100 nm. DTP is thermally stable with decomposition temperature up to 458°C. More importantly, it is amorphous with a remarkably high glass transition temperature of 262°C. DTP can be made into thin films either by solution method or vacuum evaporation Red OLEDs were fabricated using either spin coated or vacuum evaporated DTP film as emitting layer. The evaporated device exhibited a maximum brightness of 1753 cd m^-2 and a luminous efficiency of 0.74 cd A^-1, which are among the best data ever reported for thieno-[3,4-b]-pyrazine derivatives so far. In contrast, TP failed to produce satisfactory red emission in its evaporated OLEDs.

Dyes and Pigments published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Related Products of bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary