Month: December 2022

Staderini, Matteo published the artcileA tripod anchor offers improved robustness of peptide-based electrochemical biosensors, Product Details of C19H14Cl2, the publication is Sensors and Actuators, B: Chemical (2018), 662-667, database is CAplus.

Peptide-based electrochem. biosensors have proven to be powerful sensing strategies for the detection of proteases and offer a highly versatile system, as simple tuning of the immobilized substrate peptide leads to a new sensing platform. The most common immobilization strategy of peptides onto an electrode surface is via a self-assembled monolayer (SAM) through a thiol group that can be readily chem. incorporated in the target peptide. However, the successful application of these platforms in complex biol. samples can be frustrated by the lack of stability of the peptide-based SAM, that can lead to false positives and limited shelf-life. Herein, we investigated the stability of a peptide-based electrochem. platform endowed with a single or a tribranched thiol group for attaching onto the electrode surface. Side-by-side comparison demonstrated that the tripod anchor generated a highly robust peptide-based electrochem. biosensor that showed improved stability when compared to the monoanchor analog, simplifying data anal. and interpretation, while showing efficient protease detection and similar sensing capabilities.

Sensors and Actuators, B: Chemical published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C10H10O3, Product Details of C19H14Cl2.

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

Wang, Jiabao published the artcileNickel-catalyzed reductive benzylation of tertiary alkyl halides with benzyl chlorides and chloroformates, Product Details of C8H6ClF3, the publication is Organic Chemistry Frontiers (2021), 8(12), 2944-2948, database is CAplus.

Ni-Catalyzed reductive cross-coupling of tertiary alkyl halides with benzyl chlorides and chloroformates has been developed, which provides an efficient method for the construction of benzylated all-carbon quaternary centers in moderate to excellent yields with high functional group tolerance.

Organic Chemistry Frontiers published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C3H9ClOS, Product Details of C8H6ClF3.

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

Wang, Jiabao published the artcileNickel-catalyzed reductive benzylation of tertiary alkyl halides with benzyl chlorides and chloroformates, Product Details of C7H6Cl2, the publication is Organic Chemistry Frontiers (2021), 8(12), 2944-2948, database is CAplus.

Ni-Catalyzed reductive cross-coupling of tertiary alkyl halides with benzyl chlorides and chloroformates has been developed, which provides an efficient method for the construction of benzylated all-carbon quaternary centers in moderate to excellent yields with high functional group tolerance.

Organic Chemistry Frontiers 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 C7H14N4, Product Details of C7H6Cl2.

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

Niculescu-Duvaz, Dan published the artcilePyridoimidazolones as Novel Potent Inhibitors of v-Raf Murine Sarcoma Viral Oncogene Homologue B1 (BRAF). [Erratum to document cited in CA150:472622], Recommanded Product: 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, the publication is Journal of Medicinal Chemistry (2009), 52(18), 5770, database is CAplus.

On page 2256, the authors have been notified by Plexxikon that the structure of PLX4032, published in Expert Opin. Ther. Targets 2007, 11, (12), 1587-1609 (Figure 4) in Figure 1, was incorrect and the correct one has not been released.

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 C7H3Cl2F3O2S, Recommanded Product: 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride.

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

Niculescu-Duvaz, Dan published the artcilePyridoimidazolones as Novel Potent Inhibitors of v-Raf Murine Sarcoma Viral Oncogene Homologue B1 (BRAF), SDS of cas: 32333-53-2, the publication is Journal of Medicinal Chemistry (2009), 52(8), 2255-2264, database is CAplus and MEDLINE.

BRAF is a serine/threonine kinase that is mutated in a range of cancers, including 50-70% of melanomas, and has been validated as a therapeutic target. The authors have designed and synthesized mutant BRAF inhibitors containing pyridoimidazolone as a new hinge-binding scaffold. Compounds have been obtained which have low nanomolar potency for mutant BRAF (12 nM for compound I) and low micromolar cellular potency against a mutant BRAF melanoma cell line, WM266.4. The series benefits from very low metabolism, and pharmacokinetics (PK) that can be modulated by methylation of the NH groups of the imidazolone, resulting in compounds with fewer H-donors and a better PK profile. These compounds have great potential in the treatment of mutant BRAF melanomas.

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 C7H3Cl2F3O2S, SDS of cas: 32333-53-2.

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

Seth, Kapileswar published the artcile2-(2-Arylphenyl)benzoxazole As a Novel Anti-Inflammatory Scaffold: Synthesis and Biological Evaluation, Formula: C9H12BClO3, the publication is ACS Medicinal Chemistry Letters (2014), 5(5), 512-516, database is CAplus and MEDLINE.

The 2-(2-arylphenyl)benzoxazole moiety has been found to be a new and selective ligand for the enzyme cyclooxygenase-2 (COX-2). The 2-(2-arylphenyl)benzoxazoles I [R = (un)substituted Ph] have been synthesized by Suzuki reaction of 2-(2-bromophenyl)benzoxazole. The compounds II, III, and IV selectively inhibited COX-2 with selectivity index of III much better than that of the COX-2 selective NSAID celecoxib. The in vivo anti-inflammatory potency of II and III is comparable to that of celecoxib and the nonselective NSAID diclofenac at two different doses, and IV showed better potency compared to these clin. used NSAIDs.

ACS Medicinal Chemistry Letters published new progress about 480438-56-0. 480438-56-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C13H10O2, Formula: C9H12BClO3.

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

Sebastian-Perez, Victor published the artcileDeciphering the enzymatic target of a new family of antischistosomal agents bearing a quinazoline scaffold using complementary computational tools, COA of Formula: C8H6ClF3, the publication is Journal of Enzyme Inhibition and Medicinal Chemistry (2020), 35(1), 511-523, database is CAplus and MEDLINE.

A previous phenotypic screening campaign led to the identification of a quinazoline derivative with promising in vitro activity against Schistosoma mansoni. Follow-up studies of the antischistosomal potential of this candidate are presented here. The in vivo studies in a S. mansoni mouse model show a significant reduction of total worms and a complete disappearance of immature eggs when administered concomitantly with praziquantel in comparison with the administration of praziquantel alone. This fact is of utmost importance because eggs are responsible for the pathol. and transmission of the disease. Subsequently, the chem. optimization of the structure in order to improve the metabolic stability of the parent compound was carried out leading to derivatives with improved drug-like properties. Addnl., the putative target of this new class of antischistosomal compounds was envisaged by using computational tools and the binding mode to the target enzyme, aldose reductase, was proposed.

Journal of Enzyme Inhibition and Medicinal Chemistry published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C9H5ClO4S, COA of Formula: C8H6ClF3.

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

Polgar, Laszlo published the artcileRetrospective screening of relevant pesticide metabolites in food using liquid chromatography high resolution mass spectrometry and accurate-mass databases of parent molecules and diagnostic fragment ions, Recommanded Product: N-(2-(2,4,6-Trichlorophenoxy)ethyl)propan-1-amine, the publication is Journal of Chromatography A (2012), 83-91, database is CAplus and MEDLINE.

In recent years, the detection and characterization of relevant pesticide metabolites in food is an important task in order to evaluate their formation, kinetics, stability, and toxicity. In this article, a methodol. for the systematic screening of pesticides and their main metabolites in fruit and vegetable samples is described, using LC-HRMS and accurate-mass database search of parent compounds and their diagnostic fragment ions. The approach is based on (i) search for parent pesticide mols.; (ii) search for their metabolites in the pos. samples, assuming common fragmentation pathways between the metabolites and parent pesticide mols.; and (iii) search for pesticide conjugates using the data from both parent species and diagnostic fragment ions. An accurate-mass database was constructed consisting of 1396 compounds (850 parent compounds, 447 fragment ions and 99 metabolites). The screening process was performed by the software in an automated fashion. The proposed methodol. was evaluated with 29 incurred samples and the output obtained was compared to standard pesticide testing methods (targeted LC-MS/MS). Examples on the application of the proposed approach are shown, including the detection of several pesticide glycosides derivatives, which were found with significantly relevant intensities. Glucose-conjugated forms of parent compounds (e.g., fenhexamid-O-glucoside) and those of metabolites (e.g., despropyl-iprodione-N-glycoside) were detected. Facing the lack of standards for glycosylated pesticides, the study was completed with the synthesis of fenhexamid-O-glucoside for quantification purposes. In some cases the pesticide derivatives were found in a relatively high ratio, drawing the attention to these kinds of metabolites and showing that they should not be neglected in multi-residue methods. The global coverage obtained on the 29 analyzed samples showed the usefulness and benefits of the proposed approach and highlights the practical benefit obtained when the so-called screening methods are used as a complementary tool to standard targeted LC-MS/MS methods.

Journal of Chromatography A published new progress about 67747-01-7. 67747-01-7 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Amine,Benzene,Ether,Benzene Compounds, name is N-(2-(2,4,6-Trichlorophenoxy)ethyl)propan-1-amine, and the molecular formula is C11H14Cl3NO, Recommanded Product: N-(2-(2,4,6-Trichlorophenoxy)ethyl)propan-1-amine.

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

Sun, Cai-Li published the artcileSupramolecular Polymer-Based Fluorescent Microfibers for Switchable Optical Waveguides, COA of Formula: C15H14Cl2S2, the publication is ACS Applied Materials & Interfaces (2018), 10(31), 26526-26532, database is CAplus and MEDLINE.

We report the switchable optical waveguide microfibers based on fluorescent supramol. polymer for the first time. The pillar[5]arene-based supramol. polymeric microfibers were prepared easily from the viscous solution of bispillar[5]arene host (bisP5A) and diphenylanthracene-derived guest (GD). The resulting microfibers act as an active optical waveguide material with long propagation distance (400 μm) and low optical propagation loss (0.01 dB/μm). When photoresponsive dithienylethene-derived guest (GDTE) was added, the resulting ternary microfibers show switchable optical waveguide by the noninvasive control of UV/vis light with negligible fatigue over four cycles. This convenient preparation method is also applied for the quadruple-hydrogen-bonded fluorescent supramol. polymeric microfibers which imply good light propagation property with an optical loss coefficient of 0.02 dB/μm.

ACS Applied Materials & Interfaces 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 C12H14BNO2, COA of Formula: C15H14Cl2S2.

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

Wang, Dungai published the artcileUnsymmetrical Disulfides Synthesis via Cs₂CO₃-Catalyzed Three-Component Reaction in Water, Synthetic Route of 939-99-1, the publication is Advanced Synthesis & Catalysis (2020), 362(22), 4991-4995, database is CAplus.

An unsym. disulfide synthesis by Cs₂CO₃-catalyzed three-component coupling reaction of thioacetates RSC(O)Me (R = 4-CH₃OC₆H₄, CH₂C₆H₅, oxolan-2-ylmethyl, etc.), sodium thiosulfate, and benzyl halide R¹CH₂Cl (R¹ = C₆H₅, 4-BrC₆H₄, 1-naphthyl, etc.) in water has been described. The safe, stable, and non-toxic Na₂S₂O₃ was invoked as the sulfur-source, successfully avoiding the odor generation in the process of S-S bond formation. A wide range of substrate suitability and appropriate functional group tolerance were observed for the transformation. Notably, the approach reported here was compatible with various biomols. including glucose, coumarin, and quinolinone.

Advanced Synthesis & Catalysis published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C26H41N5O7S, Synthetic Route of 939-99-1.

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