Month: December 2022

Li, Cunpu published the artcileStudy of side-chain effects on the properties of anion-exchange membrane with in situ photoswitch, Quality Control of 219537-97-0, the publication is Chemistry Letters (2014), 43(9), 1493-1495, database is CAplus.

A crosslinked anion-exchange membrane (AEM) with an in situ photoswitch was synthesized. The side-chain effects on the properties of the AEM were studied using the same membrane sample in different status. The variances between the different samples were eliminated. The hydroxide conductivity of AEM could be increased by reducing the distance between the cations.

Chemistry Letters published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Quality Control of 219537-97-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Kai published the artcileSynthesis of Diboronic Acid-Based Fluorescent Probes for the Sensitive Detection of Glucose in Aqueous Media and Biological Matrices, HPLC of Formula: 209919-30-2, the publication is ACS Sensors (2021), 6(4), 1543-1551, database is CAplus and MEDLINE.

Reliable and accurate glucose detection in biol. samples is of great importance in clin. diagnosis and medical research. Chem. probes are advantageous in simple operation and flexible design, especially for the development of fluorescent probes. Anthracene-based diboronic acid (P-DBA) has shown potential in glucose probing because of its high sensitivity. However, poor solubility limits its applications in aqueous media. In this work, we systemically modify P-DBA by introducing fluoro (F-), chloro (Cl-), methoxyl (MeO-), or cyano (CN-) substituents. Among these probes, the cyano-substituted probe (CN-DBA) displays the highest glucose-binding constant (6489.5 M^-1, 33% MeOH). More importantly, it shows good water solubility in the aqueous solution (0.5% MeOH), with ultrasensitive recognition with glucose (LOD = 1.51 μM) and robust sensing from pH 6.0 to 9.0. Based on these features, the CN-DBA is finally applied to detect glucose in cell lysates and plasma, with satisfactory recovery and precision. These results demonstrate that CN-DBA could serve as an accurate, sensitive fluorescent probe for glucose assays in biol. samples.

ACS Sensors published new progress about 209919-30-2. 209919-30-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is 4-Chloro-2-methylphenylboronic acid, and the molecular formula is C15H22BBrO3, HPLC of Formula: 209919-30-2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Zhu, Xiao-Lei published the artcileNatural product neopeltolide as a cytochrome bc₁ complex inhibitor: Mechanism of action and structural modification, Formula: C6H3ClFNO2, the publication is Journal of Agricultural and Food Chemistry (2019), 67(10), 2774-2781, database is CAplus and MEDLINE.

The marine natural product neopeltolide was isolated from a deep-water sponge specimen of the family Neopeltidae. Neopeltolide has been proven to be a new type of inhibitor of the cytochrome bc₁ complex in the mitochondrial respiration chain. However, its detailed inhibition mechanism has remained unknown. In addition, neopeltolide is difficult to synthesize because of its very complex chem. structure. In the present work, the binding mode of neopeltolide was determined for the first time by integrating mol. docking, mol. dynamics simulations, and mol. mechanics Poisson-Boltzmann surface area calculations, which showed that neopeltolide is a Q_o site inhibitor of the bc₁ complex. Then, according to guidance via inhibitor-protein interaction anal., structural modification was carried out with the aim to simplify the chem. structure of neopeltolide, leading to the synthesis of a series of new neopeltolide derivatives with much simpler chem. structures. The calculated binding energies (ΔG_cal) of the newly synthesized analogs correlated very well (R² = 0.90) with their exptl. binding free energies (ΔG_exp), which confirmed that the computational protocol was reliable. Compound 45, bearing a di-Ph ether fragment, was successfully designed and synthesized as the most potent candidate (IC₅₀ = 12 nM) against porcine succinate cytochrome c reductase. The mol. modeling results indicate that compound 45 formed a π-π interaction with Phe274 and two hydrogen bonds with Glu271 and His161. The present work provides a new starting point for future fungicide discovery to overcome the resistance that the existing bc₁ complex inhibitors are facing.

Journal of Agricultural and Food Chemistry published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C12H14N2O2, Formula: C6H3ClFNO2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Tan, Wenjuan published the artcileNear-Infrared Photochromic Diarylethene Iridium (III) Complex, Name: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Organic Letters (2009), 11(1), 161-164, database is CAplus and MEDLINE.

A novel Ir complex, (Py-BTE)₂Ir(acac) [Py-BTE = 1,2-bis(5-pyridyl-2-methyl-3-thienyl)cyclopentene], coordinating to the photochromic diarylethene derivative was prepared This complex showed excellent near-IR photochromic behaviors accompanied by efficient quenching of phosphorescence emission. The Py-BTE ligand optimized structures and conformation was analyzed by B3LYP/6-31G^* level.

Organic Letters published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C7H8BNO4, Name: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Zhang, Xinyu published the artcileFluorocyclization of Allyl Alcohols and Amines to Access 3-Functionalized Oxetanes and Azetidines, Safety of 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, the publication is Organic Letters (2021), 23(9), 3674-3679, database is CAplus and MEDLINE.

An efficient method to prepare 3-functionalized oxetanes and azetidines I [R¹ = H, Me, Ph, etc.; R² = Me, Ph, 2-FC₆H₄, etc.; R¹R² = (CH₂)₄, (CH₂)₅, (CH₂)₂O(CH₂)₂, etc.; X = O, NC(O)Ph, NSO₂Ph, etc.] was realized by fluorocyclization of readily available 2-azidoallyl alcs. and amines. Notably, this was the first example applying the fluorocyclization strategy to construct four-membered heterocycles. The pendant electron-donating group (-N₃ or -OR) played a crucial role in polarizing the C=C double bond and facilitating the cyclization process, as verified by DFT and exptl. studies.

Organic Letters published new progress about 32333-53-2. 32333-53-2 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Sulfonyl chlorides,Benzene, name is 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, and the molecular formula is C7H3Cl2F3O2S, Safety of 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Liu, Haitao published the artcileOptimization of clofibrate with O-desmethyl anetholtrithione lead to a novel hypolipidemia compound with hepatoprotective effect, Formula: C12H15ClO3, the publication is Bioorganic & Medicinal Chemistry Letters (2022), 128844, database is CAplus and MEDLINE.

Oxidative stress and inflammation were considered to be the major mechanisms in liver damage caused by clofibrate (CF). In order to obtain lipid-lowering drugs with less liver damage, the structure of clofibrate was optimized by O-desmethyl anetholtrithione and got the target compound clofibrate-O-desmethyl anetholtrithione (CF-ATT). CF-ATT significantly reduced the levels of plasma triglycerides (TG), total cholesterol (TC) in hyperlipidemia mice induced by Triton WR-1339. In addition, CF-ATT has a significantly protective effect on the liver compared with CF. The liver weight and liver coefficient were reduced. The hepatic function indexes were also decreased, such as aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alk. phosphatase (ALP). Histopathol. examination of the liver revealed that inflammatory cell infiltration, nuclear degeneration, cytoplasmic loosening and hepatocyte necrosis were ameliorated by administration with CF-ATT. The hepatoprotective mechanism showed that CF-ATT significantly up-regulated Nrf2 and HO-1 protein expression and down-regulated p-NF-κB P65 expression in the liver. CF-ATT has obviously antioxidant and anti-inflammatory activity. These findings suggested that CF-ATT has significant hypolipidemia activity and exact hepatoprotective effect possibly through the Nrf2/NF-κB-mediated signal pathway.

Bioorganic & Medicinal Chemistry Letters published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, Formula: C12H15ClO3.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Zeng, Fang published the artcileCu²⁺ ion crosslinked carboxymethylcellulose/diatomite composite beads as an efficient catalyst for CuAAC reactions, Product Details of C7H6Cl2, the publication is Polymers for Advanced Technologies (2021), 32(9), 3609-3620, database is CAplus.

Cu²⁺-crosslinked CM-cellulose/diatomite composite beads (CuII@CMC/DE) were prepared in simple and efficient way using ionic crosslinking techniques. In CuII@CMC/DE beads, diatomite serves as a reinforcing filler, and divalent copper cation acts as crosslinking agent. The chem. structure and morphol. of as-fabricated CuII@CMC/DE beads were well characterized using various techniques such as ICP, FT-IR, XRD, SEM, EDS, elemental mapping, TEM, XPS, and TGA. The CuII@CMC/DE beads exerted superior catalytic performance in CuAAC reactions of benzyl halides, sodium azide, and alkynes to yield regioselective 1,4-disubstituted-1,2,3-triazoles in excellent yields under green conditions. In these resultant catalytic composite beads, Cu²⁺ was used not only as a crosslinking agent but also as a metal catalyst for CuAAC reaction. The composite beads can be easily separated by filter and reused at least four times without any significant decrease on its activity and selectivity.

Polymers for Advanced Technologies published new progress about 620-20-2. 620-20-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 3-Chlorobenzylchloride, and the molecular formula is C6H6N2O, Product Details of C7H6Cl2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wei, Yanchen published the artcileDeep eutectic solvent-induced high-entropy structures in boron nitride for boosted initiation of aerobic oxidative desulfurization of diesel, Safety of N-Benzyl-N,N-dibutylbutan-1-aminium chloride, the publication is Applied Surface Science (2020), 146980, database is CAplus.

Depending on the synthetic method, the heteroatom-doped hexagonal B nitride (h-BN) catalysts can have different configurational entropies possessing various at. short-range orderings or phase separations, leading to complex grain boundaries for catalytic reactions. Herein, several C and O co-doped h-BN (BCNO) catalysts with different at. orderings were synthesized from the ternary deep eutectic solvents (DES). The exptl. results indicated the low steric resistance DES induced high-entropy structures (HES) in the BCNO, which involved a high d. of grain boundaries. The HES was studied as a catalytic booster for the radical initiation of aerobic oxidative desulfurization (ODS) of diesel. As a result, the optimized BCNO catalyzed ODS process owned the shortest induction period, rendering the complete aerobic oxidation of refractory S compounds in 6 h.

Applied Surface Science published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C11H16BNO3, Safety of N-Benzyl-N,N-dibutylbutan-1-aminium chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Zhu, Chunfang published the artcileStructure and Activity of the Camellia oleifera Sapogenin Derivatives on Growth and Biofilm Inhibition of Staphylococcus aureus and Escherichia coli, SDS of cas: 620-20-2, the publication is Journal of Agricultural and Food Chemistry (2019), 67(51), 14143-14151, database is CAplus and MEDLINE.

Sapogenin is the main block of Camellia oleifera saponin, which was purified and structurally modified by the C₂₈ acylation reaction to synthesize 19 new derivatives The growth and biofilm inhibition of Staphylococcus aureus and Escherichia coli was measured to evaluate their antibacterial effects. A three-dimensional quant. structure-activity relationship (3D-QSAR) assay indicated that the antibacterial activities were significantly enhanced after sapogenin was modified with an aromatic ring or heterocyclic ring and electron-withdrawing substituents at the meta or para position. Among them, the derivative of sapogenin with a 2-mercapto-4-methyl-5-thiazolyl acetyl group obviously destroyed bacterial biofilm and made bacteria lysis. 3D-QSAR provides practical information for the structural design of sapogenin derivatives with strong antibacterial activity, and the C. oleifera sapogenin derivative 28-O-(2-mercapto-4-methyl-5-thiazolyl)-3β,16α,21β,22α-O-tetrahydroxy-oleantel-2-ene-23-aldehyde (S-16) is an effective candidate as an antibacterial agent for the prevention of bacterial resistance against antibiotics.

Journal of Agricultural and Food Chemistry published new progress about 620-20-2. 620-20-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 3-Chlorobenzylchloride, and the molecular formula is C17H20ClN3, SDS of cas: 620-20-2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Wentian published the artcileDesign and Synthesis of TASIN Analogues Specifically Targeting Colorectal Cancer Cell Lines with Mutant Adenomatous Polyposis Coli (APC), Related Products of chlorides-buliding-blocks, the publication is Journal of Medicinal Chemistry (2019), 62(10), 5217-5241, database is CAplus and MEDLINE.

Despite advances in targeted anticancer therapies, there are still no small-mol.-based therapies available that specifically target colorectal cancer (CRC) development and progression, the second leading cause of cancer deaths. We previously disclosed the discovery of truncating adenomatous polyposis coli (APC)-selective inhibitor 1 (TASIN-1), a small mol. that specifically targets colorectal cancer cells lines with truncating mutations in the adenomatous polyposis coli (APC) tumor suppressor gene through inhibition of cholesterol biosynthesis. Here, we report a medicinal chem. evaluation of a collection of TASIN analogs and activity against colon cancer cell lines and an isogenic cell line pair reporting on the status of APC-dependent selectivity. A number of potent and selective analogs were identified, including compounds with good metabolic stability and pharmacokinetic properties. The compounds reported herein represent a first-in-class genotype-selective series that specifically target apc mutations present in the majority of CRC patients and serve as a translational platform toward a targeted therapy for colon cancer.

Journal of Medicinal Chemistry published new progress about 32333-53-2. 32333-53-2 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Sulfonyl chlorides,Benzene, name is 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, and the molecular formula is C6H8O4, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics