Category: bromides-buliding-blocks

Gao, Xiu-zheng published the artcileDesign, synthesis and in vitro anticancer research of novel tetrandrine and fangchinoline derivatives, Related Products of bromides-buliding-blocks, the publication is Bioorganic Chemistry (2021), 104694, database is CAplus and MEDLINE.

Cancer treatment is one of the major public health issues in the world. Tetrandrine (Tet) and fangchinoline (d-Tet) are two bis-benzyl isoquinoline alkaloids extracted from Stephania tetrandra S. Moore, and their antitumor activities have been confirmed. However, the ED of Tet and d-Tet were much higher than that of the pos. control and failed to meet clin. standards Therefore, in this study, as a continuation of our previous work to study and develop high-efficiency and low-toxic antitumor lead compounds, twenty new Tet and d-Tet derivatives were designed, synthesized and evaluated as antitumor agents against six cancer cell lines (H460, H520, HeLa, HepG-2, MCF-7, SW480 cell lines) and BEAS-2B normal cells by CCK-8 anal. Ten derivatives showed better cytotoxic effects than the parent fangchinoline, of which I showed the strongest cell growth inhibitory activity with an IC₅₀ value of 0.59μM against A549 cells. Subsequently, the antitumor mechanism of I was studied by flow cytometry, Hoechst 33258, JC-1 staining, cell scratch, transwell migration, and Western blotting assays. These results showed that compound I could inhibit A549 cell proliferation by arresting the G2/M cell cycle and inhibiting cell migration and invasion by reducing MMP-2 and MMP-9 expression. Meanwhile, I could induce apoptosis of A549 cells through the intrinsic pathway regulated by mitochondria. In addition, compound I inhibited the phosphorylation of PI3K, Akt and mTOR, suggesting a correlation between blocking the PI3K/Akt/mTOR pathway and the above antitumor activities. These results suggest that compound I may be a future drug for the development of new potential drug candidates against lung cancer.

Bioorganic Chemistry published new progress about 21101-63-3. 21101-63-3 belongs to bromides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Bromide,sulfides,Benzyl bromide,Benzene, name is (4-(Bromomethyl)phenyl)(trifluoromethyl)sulfane, and the molecular formula is C8H6BrF3S, Related Products of bromides-buliding-blocks.

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

Song, Jinming published the artcileReversible Multilevel Stimuli-Responsiveness and Multicolor Room-Temperature Phosphorescence Emission Based on a Single-Component System, Recommanded Product: 1-Bromooctane, the publication is Angewandte Chemie, International Edition (2022), 61(29), e202206157, database is CAplus and MEDLINE.

There are limited reports about the transformation of pure organic room-temperature phosphorescence (RTP) materials with multilevel stimuli-responsiveness at different RTP emission wavelengths under external stimuli. It is difficult to ensure efficient intersystem crossing (ISC) in different states of a single-component system. This research reports the conversion of the organic single-component small mol. 1,2-bis(4-alkoxyphenyl)ethane-1,2-dione (N-BOX) with multilevel stimuli-responsiveness between high-efficiency blue and yellow RTP by grinding or thermal annealing N-BOX crystals. The RTP emission of N-BOX in the crystalline state was easy to adjust by external stimuli (grinding or thermal annealing) due to its non-compact packing, which led to a phase transition and generated unique multilevel stimuli-responsiveness. In particular, the RTP quantum yield of 7-BOX with multilevel stimuli-responsiveness reached 68.4%, which provides an opportunity for regulation of smart optical materials based on pure organic RTP.

Angewandte Chemie, International Edition 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 C12H14O2, Recommanded Product: 1-Bromooctane.

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

Song, Jinming published the artcileReversible Multilevel Stimuli-Responsiveness and Multicolor Room-Temperature Phosphorescence Emission Based on a Single-Component System, Recommanded Product: 1-Bromododecane, the publication is Angewandte Chemie, International Edition (2022), 61(29), e202206157, database is CAplus and MEDLINE.

There are limited reports about the transformation of pure organic room-temperature phosphorescence (RTP) materials with multilevel stimuli-responsiveness at different RTP emission wavelengths under external stimuli. It is difficult to ensure efficient intersystem crossing (ISC) in different states of a single-component system. This research reports the conversion of the organic single-component small mol. 1,2-bis(4-alkoxyphenyl)ethane-1,2-dione (N-BOX) with multilevel stimuli-responsiveness between high-efficiency blue and yellow RTP by grinding or thermal annealing N-BOX crystals. The RTP emission of N-BOX in the crystalline state was easy to adjust by external stimuli (grinding or thermal annealing) due to its non-compact packing, which led to a phase transition and generated unique multilevel stimuli-responsiveness. In particular, the RTP quantum yield of 7-BOX with multilevel stimuli-responsiveness reached 68.4%, which provides an opportunity for regulation of smart optical materials based on pure organic RTP.

Angewandte Chemie, International Edition published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C16H20N2, Recommanded Product: 1-Bromododecane.

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

Luo, Chunyan published the artcileSynthesis and insecticidal activity of novel meta-diamide compounds containing cyclopropyl group, Synthetic Route of 1207314-86-0, the publication is Youji Huaxue (2020), 40(9), 2963-2970, database is CAplus.

To discover novel insecticide with improved activity, a series of meta-diamide compounds containing cyclopropyl moiety were synthesized on the principle of biol. active factor splicing. The structures of synthetic derivatives were characterized by ¹H NMR, ¹³C NMR and HRMS. Preliminary bioassay data showed that some of the title compounds exhibited good insecticidal activities against Plutella xylostella and Chilo suppressalis. Among them, the mortality of N-(2-bromo-4-(perfluoropropan-2-yl)-6-(trifluoromethyl) phenyl)-3-(N-(cyclopropylmethyl) benzamido)-2-fluorobenzamide (6d) and 3-(N-(cyclopropylmethyl) benzamido)-N-(2,6-dibromo-4-(perfluoropropan-2-yl) phenyl)-2-fluorobenzamide (6e) was 100% against Plutella xylostella at 1 mg/L, and the mortality of compound 6d was 100% against Chilo suppressalis at 5 mg/L.

Youji Huaxue published new progress about 1207314-86-0. 1207314-86-0 belongs to bromides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Bromide,Amine,Benzene, name is 2-Bromo-4-(perfluoropropan-2-yl)-6-(trifluoromethyl)aniline, and the molecular formula is C10H4BrF10N, Synthetic Route of 1207314-86-0.

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

Mukku, Narasimharao published the artcileA Facile Microwave-Assisted Synthesis of Oxazoles and Diastereoselective Oxazolines Using Aryl-Aldehydes, p-Toluenesulfonylmethyl Isocyanide under Controlled Basic Conditions, Formula: C9H6BrNO, the publication is ACS Omega (2020), 5(43), 28239-28248, database is CAplus and MEDLINE.

In this study, a highly efficient two-component [3+2] cycloaddition reaction of substituted aryl aldehydes with 4-toluenesulfonylmethyl isocyanide (TosMIC) in the presence of 2 equiv of potassium phosphate as a base to 5-substituted oxazoles were established in a isopropanol medium under microwave irradiation However, using 1 equiv of K₃PO₄ as a base resulted in the diastereoselective synthesis of 4,5-disubstituted oxazolines under identical reaction conditions. The foremost benefits of these protocols are the moderate-to-excellent yields with good functional group compatibility, simple exptl. procedure, inexpensive readily available starting materials, nonchromatog. purification, and high bond-forming efficiency. The synthetic manipulation reported herein represents a cleaner route to the sustainable preparation of 5-substituted oxazoles and diastereoselective 4,5-disubstituted oxazolines derivatives

ACS Omega published new progress about 243455-57-4. 243455-57-4 belongs to bromides-buliding-blocks, auxiliary class Oxazole,Bromide,Benzene, name is 5-(3-Bromophenyl)oxazole, and the molecular formula is C9H6BrNO, Formula: C9H6BrNO.

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

Mazzarella, Daniele published the artcilePhotochemical Organocatalytic Borylation of Alkyl Chlorides, Bromides, and Sulfonates, HPLC of Formula: 401-55-8, the publication is ACS Catalysis (2019), 9(7), 5876-5880, database is CAplus.

Reported herein is a photochem. strategy for the borylation of alkyl halides using bis(catecholato)diboron as the boron source. This method exploits the ability of a nucleophilic dithiocarbonyl anion organocatalyst to generate radicals via an S_N2-based photochem. catalytic mechanism, which is not reliant on the redox properties of the substrates. Therefore, it grants access to alkyl boronic esters from readily available but difficult-to-reduce electrophiles, including benzylic and allylic chlorides, bromides, and mesylates, which were inert to or unsuitable for previously reported metal-free borylation protocols.

ACS Catalysis published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C4H6BrFO2, HPLC of Formula: 401-55-8.

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

Gunathilake, Samodha S. published the artcileSynthesis and characterization of novel semiconducting polymers containing pyrimidine, Safety of 2-Bromo-3-(2-ethylhexyl)thiophene, the publication is Polymer Chemistry (2013), 4(20), 5216-5219, database is CAplus.

The acidic Me protons of 4,6-dimethylpyrimidines can be easily deprotonated with a base to generate a resonance stabilized carbanion which can be used as a substrate for aldol condensation reactions. A series of novel conjugated polymers were synthesized by the aldol condensation reaction of 2-decyloxy-4,6-dimethylpyrimidine with various aromatic dialdehydes.

Polymer Chemistry published new progress about 303734-52-3. 303734-52-3 belongs to bromides-buliding-blocks, auxiliary class Thiophene,Bromide, name is 2-Bromo-3-(2-ethylhexyl)thiophene, and the molecular formula is C12H19BrS, Safety of 2-Bromo-3-(2-ethylhexyl)thiophene.

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

Krylov, Ivan M. published the artcileAccess to Functionalized α-Trifluoromethyl-α-aminophosphonates via Intermolecular Ene-Yne Metathesis, Application of (4-Bromobut-1-yn-1-yl)trimethylsilane, the publication is Synlett (2014), 25(18), 2624-2628, database is CAplus.

An efficient approach to a new family of highly functionalized P analogs of α-trifluoromethyl-substituted phenylalanine and its homologues using ruthenium-catalyzed intermol. ene-yne metathesis as a key step of the reaction sequence has been developed. The method includes cross metathesis of α-alkynyl-α-trifluoromethyl-α-aminophosphonates with alkenes under catalysis by second-generation Grubbs carbene complex to afford the corresponding aminophosphonates with 1,3-diene backbone followed by one-pot Diels-Alder reaction-aromatization step.

Synlett published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, Application of (4-Bromobut-1-yn-1-yl)trimethylsilane.

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

Makovetskaya, L. I. published the artcileIon-selective electrodes with anionic tenside function for detergent analysis, Quality Control of 518-67-2, the publication is Seifen, Oele, Fette, Wachse (1991), 117(15), 565-71, database is CAplus.

The electrochem. characteristics of dodecyl sulfate-, and dodecylbenzene sulfonate-selective electrodes with polymer membranes on the base of ion associations of anionic tensides and cetylpyridinium, tetrahexadecylphosphonium (I), giamin 1622, etonium, and dyes like methylene blue (II) and dimidium bromide (III) were studied. Calibration curves are presented. The most stable electrodes (1400-1500 measurements) were these of associations of anionic tensides with I and dyes (II and III) obeying the Nernst relation in a broad range of tenside concentration and pH (1-12). Results from potentiometric titrations of Na alkylbenzene sulfonates and Na alkyl sulfates with all investigated electrodes met the results from conventional 2-phase titrations

Seifen, Oele, Fette, Wachse 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, Quality Control of 518-67-2.

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

Truscott, Roger J. W. published the artcileTwo new sulfur-containing amino acids in man, Category: bromides-buliding-blocks, the publication is Biomedical Mass Spectrometry (1981), 8(3), 99-104, database is CAplus and MEDLINE.

Two unusual S-containing amino acids were isolated from the urine of a baby (of 1st cousin parents) who died with major phys. malformations and failure of growth and development. These acids were identified as (S)-(2-carboxypropyl)-cysteamine and -cysteine by mass spectral anal. and by synthesis. A recessively inherited error in valine metabolism at the level of methacrylyl-CoA hydratase, with conjugation of the methacrylic acid so formed with cysteine, is proposed as the origin of the compounds Possibly methacrylic acid or one of its derivatives caused the malformations in the baby.

Biomedical Mass Spectrometry 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 C25H23NO4, Category: bromides-buliding-blocks.

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