Month: April 2022

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 3395-91-3, is researched, Molecular C4H7BrO2, about Smart carbon dots as chemosensor for control of water contamination in organic media, the main research direction is carbon dot chemosensor water detection organic solvent.COA of Formula: C4H7BrO2.

A novel nanoprobe was synthesized by functionalizing gluthatione/citric acid-carbon dots (CDs) with a benzo-isoquinolin-based mol., Me 3-(4-(2-(5-((methylsulfonyl)oxy)pentyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)piperazin-1-yl)propanoate (water chemosensor, WCS), to detect trace amounts of water in non-aqueous media via on-off fluorescence. The design and synthesis of the free mol. WCS and the functionalized nanoprobe (CD-WCS) are described in detail and as well as their full characterization by different spectroscopic methods. WCS was found to be an excellent indicator of pH in aqueous media and exhibited, in solvents of different polarity, solvatochromic behavior. On the other hand, the modified fluorescence intensity of CD-WCS was found to be an excellent indicator for water in non-aqueous media (organic solvents and oil-based lubricants). In these media, CD-WCS showed weak fluorescence intensity due to a photoinduced electron transfer (PET) process. Sequential addition of trace amount of water led to revival of CD-WCS fluorescence intensity. The fluorescence on-off mechanisms are proposed for WCS in aqueous media as well as for CD-WCS in non-aqueous media. The anal. performance characteristics of CD-WCS showed a limit of detection for water of 0.00021% (volume/volume) in toluene and 0.00014% volume/volume in base-oil lubricant. The potential application of CD-WCS as chemosensor of water contamination in oil-based lubricants as well as green anti-wear/anti-friction lubricant additive are outlined.

Compound(3395-91-3)COA of Formula: C4H7BrO2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Methyl 3-bromopropanoate), if you are interested, you can check out my other related articles.

Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Use of Green Solvents in Metallaphotoredox Cross-Electrophile Coupling Reactions Utilizing Lipophilic Modified Dual Ir/Ni Catalyst System, published in 2021-12-03, which mentions a compound: 3395-91-3, mainly applied to metallaphotoredox cross electrophile coupling lipophilic catalyst green solvent, Reference of Methyl 3-bromopropanoate.

Facilitating photoredox coupling reactions in process friendly green solvents was achieved by the successful application of the dual Ir/Ni catalyst system with enhanced solubility properties. These photochem. reactions (specifically Br-Br sp2-sp3 cross electrophile coupling) are reported in a head to head comparison to the reactions using standard di-t-Bu bipyridine ligand Ir/Ni catalyst system. This presentation highlights the benefits of altering the solubility properties of the ligands used in the Ir/Ni dual catalyst.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 3395-91-3, is researched, Molecular C4H7BrO2, about Synthesis of Highly Enantioenriched Sulfonimidoyl Fluorides and Sulfonimidamides by Stereospecific Sulfur-Fluorine Exchange (SuFEx) Reaction, the main research direction is enantioenriched sulfonimidoyl fluoride sulfonimidamide preparation stereospecific SuFEx; SuFEx reactions; chirality; sulfonimidamides; sulfur; synthetic methods.Recommanded Product: 3395-91-3.

Sulfonimidamides present exciting opportunities as chiral isosteres of sulfonamides, with potential for addnl. directional interactions. Here the authors present the first modular enantioselective synthesis of sulfonimidamides, including the first stereoselective synthesis of enantioenriched sulfonimidoyl fluorides, and studies on their reactivity. A new route to sulfonimidoyl fluorides is presented from solid bench-stable, N-Boc-sulfinamide salt building blocks. Enantioenriched arylsulfonimidoyl fluorides are shown to be readily racemized by fluoride ions. Conditions are developed, which trap fluoride and enable the stereospecific reaction of sulfonimidoyl fluorides with primary and secondary amines (100% es) generating sulfonimidamides with up to 99% ee. Aryl and alkyl sulfonimidoyl fluoride reagents are suitable for mild late stage functionalization reactions, exemplified by coupling with a selection of complex amines in marketed drugs.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Organic Letters called Reductive sp3-sp2 Coupling Reactions Enable Late-Stage Modification of Pharmaceuticals, Author is Mennie, Katrina M.; Vara, Brandon A.; Levi, Samuel M., which mentions a compound: 3395-91-3, SMILESS is O=C(OC)CCBr, Molecular C4H7BrO2, Product Details of 3395-91-3.

Late-stage derivatization of pharmaceutically relevant scaffolds relies on the availability of highly functional-group tolerant reactions. Reactions that increase the sp3 character of mols. enable the pursuit of more selective and well-tolerated pharmaceuticals. Herein, we report the use of sp3-sp2 cross-electrophile reductive couplings to modify a generic ATP-competitive kinase inhibitor with a broad range of primary and secondary alkyl halide coupling partners.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Safety of Methyl 3-bromopropanoate. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Methyl 3-bromopropanoate, is researched, Molecular C4H7BrO2, CAS is 3395-91-3, about A nano-cocktail of an NIR-II emissive fluorophore and organoplatinum(II) metallacycle for efficient cancer imaging and therapy. Author is Ding, Feng; Chen, Zhao; Kim, Won Young; Sharma, Amit; Li, Chonglu; Ouyang, Qingying; Zhu, Hua; Yang, Guangfu; Sun, Yao; Kim, Jong Seung.

The scarcity of efficient imaging technologies for precise cancer treatment greatly drives the development of new nanotheranostic based platforms that enable both diagnostic and therapeutic functions, together in a single formulation. Owing to the complicated physiol. microenvironment, nanosystems designed with the possibility of noninvasive real-time monitoring of therapeutic progression in the second near-IR channel (NIR-II, 1000-1700 nm) could substantially improve the current cancer therapies. Herein, we design a novel NIR-II theranostic nanoprobe, PSY (size ∼110 nm), by incorporating organoplatinum(II) metallacycles P1 and an organic NIR-II mol. dye, SY1030, into the FDA-approved polymer Pluronic F127. Preliminary in vitro and in vivo studies suggest that PSY is capable of being internalized into glioma U87MG-cells with no significant internalization in non-cancerous tissues. In addition, it shows excellent photostability and minimal background for real-time monitoring the process of therapy in the NIR-II region. Furthermore, in U87MG xenografts and orthotopic breast tumor, PSY demonstrat significantly improved anticancer efficacy compared to a clin. approved Pt(II)-based anticancer drug, cisplatin. The engineered nano-cocktail PSY offers a simple strategy for delivering the organoplatinum(II) macrocycle P1 and NIR-II fluorophore SY1030 as a cocktail of diagnostic and therapeutic functions and highlights its promising capacity for future cancer treatment.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Methyl 3-bromopropanoate( cas:3395-91-3 ) is researched.Recommanded Product: 3395-91-3.Zhu, Haichao; Liu, Meihua; Li, Haiyan; Guan, Ting; Zhang, Qi; Chen, Yang; Liu, Yingxiang; Hartmann, Rolf R.; Yin, Lina; Hu, Qingzhong published the article 《Design, synthesis and biological evaluation of pyridyl substituted benzoxazepinones as potent and selective inhibitors of aldosterone synthase》 about this compound( cas:3395-91-3 ) in Chinese Chemical Letters. Keywords: pyridyl benzoxazepinone preparation aldosterone synthase inhibitor mol docking. Let’s learn more about this compound (cas:3395-91-3).

Exorbitant aldosterone is closely associated with various severe diseases, including congestive heart failure and chronic kidney disease. As aldosterone synthase is the pivotal enzyme in aldosterone biosynthesis, its inhibition constitutes a promising treatment for these diseases. Via a structure-based approach, a series of pyridyl substituted 3,4-dihydrobenzo[f][1,4]oxazepin-5(2H)-ones I (R = dimethylaminyl, F, pyrrolidin-1-yl, etc.; R1 = 4-methylpyridin-3-yl, 5-(trifluoromethyl)pyridin-3-yl, 5-fluoropyridin-3-yl, etc.) were designed as inhibitors of aldosterone synthase. Six compounds I (R = dimethylaminyl, R1 = 5-methylpyridin-3-yl; R1 = R = dimethylaminyl, 4-methylpyridin-3-yl; R = dimethylaminyl, R1 = 5-methoxypyridin-3-yl; R1 = 4-methylpyridin-3-yl, R = morpholin-4-yl; R1 = 4-methylpyridin-3-yl, R = piperazin-1-yl (II); R1 = 4-methylpyridin-3-yl, R = 4-methylpiperazin-1-yl) distinguished themselves with potent inhibition (IC50 <100 nmol/L) and high selectivity over homogenous 11β-hydroxylase. As the most promising compound, (II) exhibited an IC50 of 12 nmol/L and an excellent selectivity factor (SF) of 157, which are both superior to those of the reference fadrazole (IC50 = 21 nmol/L, SF = 7). Importantly, (II) showed no inhibition against steroidogenic CYP17, CYP19 and a panel of hepatic CYP enzymes indicating an outstanding safety profile. As it manifested satisfactory pharmacokinetic properties in rats, compound (II) was considered as a drug candidate for further development. From this literature《Design, synthesis and biological evaluation of pyridyl substituted benzoxazepinones as potent and selective inhibitors of aldosterone synthase》,we know some information about this compound(3395-91-3)Recommanded Product: 3395-91-3, but this is not all information, there are many literatures related to this compound(3395-91-3).

Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 254905-58-3, is researched, Molecular C13H24N2O3, about Conformationally restrained carbamoylcholine homologues. Synthesis, pharmacology at neuronal nicotinic acetylcholine receptors and biostructural considerations, the main research direction is carbamoylcholine homolog pharmacol neuron nicotinic receptor ligand; Acetylcholine; Agonist; Conformational restriction; Docking; Nicotinic acetylcholine receptor.Recommanded Product: tert-Butyl 4-(dimethylcarbamoyl)piperidine-1-carboxylate.

Exploration of small selective ligands for the nicotinic acetylcholine receptors (nAChRs) based on acetylcholine (ACh) has led to the development of potent agonists with clear preference for the α4β2 nAChR, the most prevalent nAChR subtype in the central nervous system. In this work the authors present the continuation of these efforts aimed at increasing this subtype selectivity by introduction of conformational restriction in the carbamoylcholine homolog, 3-(dimethylaminobutyl) dimethylcarbamate (DMABC). The results highlight the importance of the N-carbamoyl substitution in α4β2-subtype selectivity. Moreover, the authors have confirmed the non-linear conformation of DMABC bound to nAChRs suggested by recent crystal structures of the compound in complex with the Lymnaea stagnalis ACh binding protein.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Directed Nickel-Catalyzed Diastereoselective Reductive Difunctionalization of Alkenyl Amines》. Authors are Zhao, Lei; Meng, Xiao; Zou, Yifeng; Zhao, Junsong; Wang, Lili; Zhang, Lanlan; Wang, Chao.The article about the compound:Methyl 3-bromopropanoatecas:3395-91-3,SMILESS:O=C(OC)CCBr).COA of Formula: C4H7BrO2. Through the article, more information about this compound (cas:3395-91-3) is conveyed.

We report herein an intermol. syn-arylalkylation and alkenylalkylation of alkenyl amines with two different organohalides (iodides and bromides) using Ni(II) catalyst. The cleavable bidentate quinolinamide was utilized after extensive directing group screening to enable olefin difunctionalization with high levels of regio-, chemo-, and diastereocontrol. This general and practical protocol was compatible with α- or β-substituted terminal alkenes and internal alkenes, providing rapid access to branched aliphatic amines bearing two skipped and vicinal stereocenters with high diastereoselectivities that would otherwise be difficult to synthesize.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Category: benzothiophene. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Methyl 3-bromopropanoate, is researched, Molecular C4H7BrO2, CAS is 3395-91-3, about Design, synthesis and biological evaluation of dihydro-2-quinolone platinum(IV) hybrids as antitumor agents displaying mitochondria injury and DNA damage mechanism. Author is Liu, Zhifang; Li, Zuojie; Du, Tao; Chen, Yan; Wang, Qingpeng; Li, Guoshuai; Liu, Min; Zhang, Ning; Li, Dacheng; Han, Jun.

The design of novel platinum(IV) complexes with mitochondria injury competence, besides the DNA damage mechanism, is a promising way to develop new platinum drugs. Herein, dihydro-2-quinolone (DHQLO) as a mitocan was incorporated into the platinum(IV) system for the first time to prepare a new series of DHQLO platinum(IV) compounds Complex 1b could effectively inhibit the proliferation of tumor cells in vitro and in vivo. It accumulated at higher levels in both whole cells and DNA, and easily underwent intercellular reduction to release platinum(II) and DHQLO moieties. The released platinum(II) complex caused serious DNA damage by covalent conjunction with the DNA duplex, and remarkably increased the expression of the γ-H2AX protein. Moreover, 1b also caused serious mitochondria injury to induce mitochondrial membrane depolarization and increase ROS generation. Such actions upon DNA and mitochondria activate the p53 apoptotic pathway synergetically in tumor cells by upregulating the protein p53 and apoptotic proteins caspase9 and caspase3, which efficiently promoted the apoptotic death of tumor cells. Compound 1b with such synergic mechanism exhibited great potential in reversing cisplatin resistance and improving antitumor efficacies.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Methyl 3-bromopropanoate, is researched, Molecular C4H7BrO2, CAS is 3395-91-3, about Melanin-dot-mediated delivery of metallacycle for NIR-II/photoacoustic dual-modal imaging-guided chemo-photothermal synergistic therapy, the main research direction is photothermal therapy photoacoustic imaging NIR tumor; chemo-photothermal synergistic therapy; melanin dots; metallacycle; supramolecular coordination complexes; the second near-infrared channel.Synthetic Route of C4H7BrO2.

Discrete Pt(II) metallacycles have potential applications in biomedicine. Herein, we engineered a dual-modal imaging and chemo-photothermal therapeutic nano-agent 1 that incorporates discrete Pt(II) metallacycle 2 and fluorescent dye 3 (emission wavelength in the second near-IR channel [NIR-II]) into multifunctional melanin dots with photoacoustic signal and photothermal features. Nano-agent 1 has a good solubility, biocompatibility, and stability in vivo. Both photoacoustic imaging and NIR-II imaging in vivo confirmed that 1 can effectively accumulate at tumor sites with good signal-to-background ratio and favorable distribution. Guided by precise dual-modal imaging, nano-agent 1 exhibits a superior antitumor performance and less severe side effects compared with a single treatment because of the high efficiency of the chemo-photothermal synergistic therapy. This study shows that nano-agent 1 provides a promising multifunctional theranostic platform for potential applications in biomedicine.

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Reference:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem