Author: Jessica.F

Discovery of Dihydro-1,4-Benzoxazine Carboxamides as Potent and Highly Selective Inhibitors of Sirtuin-1 was written by Spinck, Martin;Bischoff, Matthias;Lampe, Philipp;Meyer-Almes, Franz-Josef;Sievers, Sonja;Neumann, Heinz. And the article was included in Journal of Medicinal Chemistry in 2021.Quality Control of 2-(Bromomethyl)-1,3-dimethylbenzene This article mentions the following:

Sirtuins are signaling hubs orchestrating the cellular response to various stressors with roles in all major civilization diseases. Sirtuins remove acyl groups from lysine residues of proteins, thereby controlling their activity, turnover, and localization. The seven human sirtuins, SirT1-7, are closely related in structure, hindering the development of specific inhibitors. Screening 170,000 compounds, we identify and optimize SirT1-specific benzoxazine inhibitors, Sosbo, which rival the efficiency and surpass the selectivity of selisistat (EX527). The compounds inhibit the deacetylation of p53 in cultured cells, demonstrating their ability to permeate biol. membranes. Kinetic anal. of inhibition and docking studies reveal that the inhibitors bind to a complex of SirT1 and NAD, similar to selisistat. These new SirT1 inhibitors are valuable alternatives to selisistat in biochem. and cell biol. studies. Their greater selectivity may allow the development of better targeted drugs to combat SirT1 activity in diseases such as cancer, Huntington’s chorea, or anorexia. In the experiment, the researchers used many compounds, for example, 2-(Bromomethyl)-1,3-dimethylbenzene (cas: 83902-02-7Quality Control of 2-(Bromomethyl)-1,3-dimethylbenzene).

2-(Bromomethyl)-1,3-dimethylbenzene (cas: 83902-02-7) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Quality Control of 2-(Bromomethyl)-1,3-dimethylbenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Development of coumarin-based hydroxamates as histone deacetylase inhibitors with antitumor activities was written by Zhao, Na;Yang, Feifei;Han, Lina;Qu, Yuhua;Ge, Di;Zhang, Hua. And the article was included in Molecules in 2020.COA of Formula: C9H11Br This article mentions the following:

Histone deacetylases (HDACs) have been proved to be promising targets for the treatment of cancer, and five histone deacetylase inhibitors (HDACis) have been approved on the market for the treatment of different lymphomas. In our previous work, we designed a series of novel coumarin-containing hydroxamate HDACis, among which compounds 6 and 7 displayed promising activities against tumor growth. Based on a mol. docking study, we further developed 26 addnl. analogs with the aim to improve activity of designed compounds Several of these new derivatives not only showed excellent HDAC1 inhibitory effects, but also displayed significant growth inhibitory activities against four human cancer cell lines. Representative compounds, 13a and 13c, showed potent anti-proliferative activities against solid tumor cell lines with IC₅₀ values of 0.36-2.91 microM and low cytotoxicity against Beas-2B and L-02 normal cells. Immunoblot anal. revealed that 13a and 13c dose-dependently increased the acetylation of histone H3 and H4. Importantly, the two compounds displayed much better anti-metastatic effects than SAHA against the MDA-MB-231 cell line. Moreover, 13a and 13c arrested MDA-MB-231 cells at G2/M phase and induced MDA-MB-231 cell apoptosis. Finally, the mol. docking study rationalized the high potency of compound 13c. In the experiment, the researchers used many compounds, for example, 2-(Bromomethyl)-1,3-dimethylbenzene (cas: 83902-02-7COA of Formula: C9H11Br).

2-(Bromomethyl)-1,3-dimethylbenzene (cas: 83902-02-7) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.COA of Formula: C9H11Br

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

High-Temperature and Dynamic RGB (Red-Green-Blue) Long-Persistent Luminescence in an Anti-Kasha Organic Compound was written by Zhang, Qiang-Sheng;Wang, Shi-Cheng;Xiong, Xiao-Hong;Fu, Peng-Yan;Zhang, Xiao-Dong;Fan, Ya-Nan;Pan, Mei. And the article was included in Angewandte Chemie, International Edition in 2022.Application of 128-08-5 This article mentions the following:

Organic LPL (long-persistent luminescence) materials have sparked extensive research interest due to the ultralong-lived triplet states. Although numerous organic LPL materials were reported, most of the triplet emission was static and monotonous. LPL materials with dynamic triplet emission are urgently required. 2,4,6-Tris(diphenylamino)-1,3,5-triazine (1) with dynamic long-persistent luminescence (LPL) was fabricated. The single-crystal structure shows that the abundant intermol. interactions and small free volume restrict the mol. motion and avoid the quenchers. Spectral and theor. calculations upheld the existence of multiple excited states in 1, and the migration of electrons between multiple excited states is sensitive to external stimuli. By modulating the stimulus, the residence of electrons in different triplet states can be manipulated to achieve RGB LPL. Blue LPL was achieved by manipulating the anti-Kasha emission. The red LPL can still be observed at high temperature In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Application of 128-08-5).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Application of 128-08-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Electrochemically stable carbazole-derived polyaniline for pseudocapacitors was written by Almtiri, Mohammed;Dowell, Timothy J.;Giri, Hari;Wipf, David O.;Scott, Colleen N.. And the article was included in ACS Applied Polymer Materials in 2022.HPLC of Formula: 128-08-5 This article mentions the following:

Supercapacitor energy storage devices are well suited to meet the rigorous demands of future portable consumer electronics (PCEs) due to their high energy and power densities (i.e., longer battery-life and rapid charging, resp.) and superior operational lifetimes (10 times greater than lithium-ion batteries). To date, research efforts have been narrowly focused on improving the specific capacitance of these materials; however, emerging technologies are increasingly demanding competitive performance with regards to other criteria, including scalability of fabrication and electrochem. stability. In this regard, we developed a polyaniline (PANI) derivative that contains a carbazole unit copolymerized with 2,5-dimethyl-p-phenylenediamine (Cbz-PANI-1) and determined its optoelectronic properties, elec. conductivity, processability, and electrochem. stability. Importantly, the polymer exhibits good solubility in various solvents, which enables the use of scalable spray-coating and drop-casting methods to fabricate electrodes. Cbz-PANI-1 was used to fabricate electrodes for supercapacitor devices that exhibits a maximum areal capacitance of 64.8 mF cm^-2 and specific capacitance of 319 F g^-1 at a c.d. of 0.2 mA cm^-2. Moreover, the electrode demonstrates excellent cyclic stability (閳?83% of capacitance retention) over 1000 CV cycles. Addnl., we demonstrate the charge storage performance of Cbz-PANI-1 in a sym. supercapacitor device, which also exhibits excellent cyclic stability (閳?91% of capacitance retention) over 1000 charge-discharge cycles. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5HPLC of Formula: 128-08-5).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.HPLC of Formula: 128-08-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Deconstructing Noncovalent Kelch-like ECH-Associated Protein 1 (Keap1) Inhibitors into Fragments to Reconstruct New Potent Compounds was written by Pallesen, Jakob S.;Narayanan, Dilip;Tran, Kim T.;Solbak, Sara M. Oe.;Marseglia, Giuseppe;Soerensen, Louis M. E.;Hoej, Lars J.;Munafo, Federico;Carmona, Rosa M. C.;Garcia, Anthony D.;Desu, Haritha L.;Brambilla, Roberta;Johansen, Tommy N.;Popowicz, Grzegorz M.;Sattler, Michael;Gajhede, Michael;Bach, Anders. And the article was included in Journal of Medicinal Chemistry in 2021.Category: bromides-buliding-blocks This article mentions the following:

Targeting the protein-protein interaction (PPI) between nuclear factor erythroid 2-related factor 2 (Nrf2) and Kelch-like ECH-associated protein 1 (Keap1) is a potential therapeutic strategy to control diseases involving oxidative stress. Here, six classes of known small-mol. Keap1-Nrf2 PPI inhibitors were dissected into 77 fragments in a fragment-based deconstruction reconstruction (FBDR) study and tested in four orthogonal assays. This gave 17 fragment hits of which six were shown by X-ray crystallog. to bind in the Keap1 Kelch binding pocket. Two hits were merged into pyrazole I with a 220-380-fold stronger affinity (K_i = 16娓璏) relative to the parent fragments. Systematic optimization resulted in several novel analogs with K_i values of 0.04-0.5娓璏, binding modes determined by X-ray crystallog., and enhanced microsomal stability. This demonstrates how FBDR can be used to find new fragment hits, elucidate important ligand-protein interactions, and identify new potent inhibitors of the Keap1-Nrf2 PPI. In the experiment, the researchers used many compounds, for example, 3-Bromo-5-chlorophenylamine (cas: 96558-78-0Category: bromides-buliding-blocks).

3-Bromo-5-chlorophenylamine (cas: 96558-78-0) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis and the mass and nuclear magnetic resonance spectra of side chain isomers of cholesta-5,22-dien-3灏?ol and cholesta-5,22,24-trien-3灏?ol was written by Hutchins, Roderick F. N.;Thompson, Malcolm J.;Svoboda, James A.. And the article was included in Steroids in 1970.Electric Literature of C23H26BrP This article mentions the following:

The previously unknown 22-cis-cholesta-5,22-dien-3灏?ol, 22-cis and 22-trans isomers of cholesta-5,22,24-trien-3灏?ol, 20-iso-22-trans-cholesta-5,22,24-trien-3灏?ol, 22,24-trans,-trans-26-homocholesta-5,22,24-trien-3灏?ol, and the known 22-trans-dehydrocholesterol were synthesized. Their IR, mass and NMR spectra are presented. These compounds undergo fragmentation processes that are governed primarily by the site of the unsaturation and not by their stereochemistry. However, the C-methyl resonances in the NMR spectra are influenced by their chem. environment. In the experiment, the researchers used many compounds, for example, Isopentyltriphenylphosphonium bromide (cas: 28322-40-9Electric Literature of C23H26BrP).

Isopentyltriphenylphosphonium bromide (cas: 28322-40-9) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Electric Literature of C23H26BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Improved Flavodoxin Inhibitors with Potential Therapeutic Effects against Helicobacter pylori Infection was written by Galano, Juan J.;Alias, Miriam;Perez, Reyes;Velazquez-Campoy, Adrian;Hoffman, Paul S.;Sancho, Javier. And the article was included in Journal of Medicinal Chemistry in 2013.Application of 14425-64-0 This article mentions the following:

A variety of electron-deficient chromenes and styrenes and nitrobenzooxadiazolyl thioethers and other compounds were tested (and in some cases prepared) as selective inhibitors of flavodoxin in Helicobacter pylori for potential use in the treatment of gastric ulcer and prevention of stomach cancer with fewer side effects and reduced susceptibilities to drug resistance; their inhibition of flavodoxin and of Helicobacter pylori and their cytotoxicities were determined For example, (E)-ArCH:CHNO₂ (Ar = 2-F-5-F₃CC₆H₃, 4-Cl-2,6-F₂C₆H₂) inhibited H. pylori with IC₅₀ values of 0.53 娓璏 and therapeutic indexes of 38 and 15, resp. In the experiment, the researchers used many compounds, for example, 1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0Application of 14425-64-0).

1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Application of 14425-64-0

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Photochromic dihetarylethenes. 12. Synthesis of 5-alkyl-2-(1,3,4-oxadiazol-2-yl)thiophenes and their photochromic derivatives was written by Krayushkin, M. M.;Stoyanovich, F. M.;Zolotarskaya, O. Yu.;Chernoburova, E. I.;Makhova, N. N.;Yarovenko, V. N.;Zavarzin, I. V.;Martynkin, A. Yu.;Uzhinov, B. M.. And the article was included in Chemistry of Heterocyclic Compounds (New York, NY, United States)(Translation of Khimiya Geterotsiklicheskikh Soedinenii) in 2002.Application In Synthesis of 4-Bromo-5-methylthiophene-2-carboxylic acid This article mentions the following:

Photochromic 5-alkyl-2-(1,3,4-oxadiazol-2-yl)thiophenes I (R¹ = Me, R² = Ph, 4-MeOC₆H₄; R¹ = n-hexyl, R² = 6-methoxy-2-benzothiazolyl) and II were synthesized, and their photochromic and fluorescent properties were studied. In the experiment, the researchers used many compounds, for example, 4-Bromo-5-methylthiophene-2-carboxylic acid (cas: 29421-99-6Application In Synthesis of 4-Bromo-5-methylthiophene-2-carboxylic acid).

4-Bromo-5-methylthiophene-2-carboxylic acid (cas: 29421-99-6) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Application In Synthesis of 4-Bromo-5-methylthiophene-2-carboxylic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis and biological evaluation of novel sulfone derivatives containing 1,3,4-oxadiazole moiety was written by Su, Shihu;Zhou, Xia;Zhou, Yan;Liao, Guoping;Shi, Li;Yang, Xia;Zhang, Xian;Jin, Linhong. And the article was included in World Journal of Organic Chemistry in 2014.HPLC of Formula: 179232-29-2 This article mentions the following:

Series of novel sulfone derivatives containing 1,3,4-oxadiazole moiety I [R¹ = 4-F-2-Me, 2,5-Cl₂, 2-Br-4-F, etc.; R² = Me, Et, CH(CH₃)₂, n-propyl] and II [R² = Me, Et, CH₂Ph] were synthesized. All the target compounds were characterized by ¹H and ¹³C NMR, IR spectroscopy and elemental anal. Their antifungal activities were tested in vitro with six important phytopathogenic fungi, namely, Gibberella zeae, Fusarium oxysporum, Cytospora mandshurica, Phytophthora infestans, Paralepetopsis sasakii and Sclerotinia sclerotiorum using the mycelium growth inhibition method. Their antibacterial activities were tested in vitro with two important phytopathogenic bacteria, namely, Xanthomonas oryzae and Ralstonia solanacearum from tobacco bacterial by the turbid meter test. Compounds I [R¹ = 2-Cl-4-F, 4-CF₃; R² = Me] and II [R² = Me, Et] exhibited the most potent inhibition against R. solanacearum and X. oryzae with 50% inhibition concentration (EC₅₀) from 1.97 to 7.75 娓璯/mL and 0.45 to 0.52 娓璯/mL, resp. Their antifungal tests indicated that among target compounds exhibited good antifungal activities against six kinds of fungi, especially against S. sclerotiorum with EC₅₀ from 3.71 to 17.44 娓璯/mL. In vivo antibacterial activities tests demonstrated that the controlling effect of compound II [R² = Me] (81.9%) against rice bacterial leaf blight were better than that of bismerthiazol (50.8%) and thiodiazole-copper (44.7%). The results also demonstrated that compounds I [R¹ = 2-Cl-4-F; R² = Me] and II [R² = Me, Et] had a better antifungal and antibacterial activity, with good characteristics of broad spectrum. The structure-activity relationships were also discussed. In the experiment, the researchers used many compounds, for example, Methyl 4-bromo-2-fluorobenzoate (cas: 179232-29-2HPLC of Formula: 179232-29-2).

Methyl 4-bromo-2-fluorobenzoate (cas: 179232-29-2) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon閳ユ彽romine bond is electrophilic, i.e. alkyl bromides are alkylating agents. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.HPLC of Formula: 179232-29-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis and characterization of new tetra-substituted porphyrins with exo-donor carboxylic groups as building blocks for supramolecular architectures: Catalytic and structural studies of their metalated derivatives was written by Carlucci, Lucia;Ciani, Gianfranco;Maggini, Simona;Proserpio, Davide M.;Ragaini, Fabio;Gallo, Emma;Ranocchiari, Marco;Caselli, Alessandro. And the article was included in Journal of Porphyrins and Phthalocyanines in 2010.Reference of 100189-84-2 This article mentions the following:

The authors report herein the synthesis of the porphyrins 5,10,15,20-tetrakis(4-carboxybiphenyl)-porphyrin (H₂TCBP) and 5,10,15,20-tetrakis(4-carboxy-2,6-dimethylbiphenyl)porphyrin (H₂TCDMBP) bearing di-Ph units on meso-positions, and of their cobalt and silver derivatives The silver complexes of H₂TCDMBP and of H₂TCPP (H₂TCPP = 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin) were studied by x-ray crystallog. and their supramol. organization elucidated. Co(TCBP) was reacted with copper formate, yielding a polymeric compound that showed a catalytic activity in the benzylic amination of hydrocarbons using arylazide as aminating agent. In the experiment, the researchers used many compounds, for example, 2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2Reference of 100189-84-2).

2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Reference of 100189-84-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary