Author: Jessica.F

Waszkowycz, Bohdan published the artcileCell-Active Small Molecule Inhibitors of the DNA-Damage Repair Enzyme Poly(ADP-ribose) Glycohydrolase (PARG): Discovery and Optimization of Orally Bioavailable Quinazolinedione Sulfonamides, Name: 2-(Chloromethyl)-5-methyl-1,3,4-thiadiazole, the publication is Journal of Medicinal Chemistry (2018), 61(23), 10767-10792, database is CAplus and MEDLINE.

DNA damage repair enzymes are promising targets in the development of new therapeutic agents for a wide range of cancers and potentially other diseases. The enzyme poly(ADP-ribose) glycohydrolase (PARG) plays a pivotal role in the regulation of DNA repair mechanisms; however, the lack of potent drug-like inhibitors for use in cellular and in vivo models has limited the investigation of its potential as a novel therapeutic target. Using the crystal structure of human PARG in complex with the weakly active and cytotoxic anthraquinone 8a, novel quinazolinedione sulfonamides PARG inhibitors have been identified by means of structure-based virtual screening and library design. 1-Oxetan-3-ylmethyl derivatives 33d and 35d were selected for preliminary investigations in vivo. X-ray crystal structures help rationalize the observed structure-activity relationships of these novel inhibitors.

Journal of Medicinal Chemistry published new progress about 75341-23-0. 75341-23-0 belongs to chlorides-buliding-blocks, auxiliary class Thiadiazole,Chloride, name is 2-(Chloromethyl)-5-methyl-1,3,4-thiadiazole, and the molecular formula is C15H20O6, Name: 2-(Chloromethyl)-5-methyl-1,3,4-thiadiazole.

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

Gourdet, Benoit published the artcileRhodium-catalyzed carbometalation of ynamides with organoboron reagents, Product Details of C9H12BClO3, the publication is Tetrahedron (2010), 66(32), 6026-6031, database is CAplus.

In the presence of catalytic [Rh(cod)(MeCN)₂]BF₄, ynamides undergo carbometalation with boronic acids, arylboronic esters, and triarylboroxines. These reactions enable the regio- and stereocontrolled synthesis of multisubstituted enamides. E.g., reaction of 3-(2-phenylethynyl)oxazolidin-2-one with 4-chlorophenylboronic acid gave 65% 3-[(E)-2-(4-chlorophenyl)-2-phenylvinyl]oxazolidin-2-one (I).

Tetrahedron 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 C9H12BClO3, Product Details of C9H12BClO3.

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

Van Tilborg, W. J. M. published the artcileThe electrochemical Wittig-Horner reaction; evidence of a stepwise cleavage of a four-membered ring Wittig intermediate, Application In Synthesis of 866-23-9, the publication is Recueil des Travaux Chimiques des Pays-Bas (1980), 99(6), 202-6, database is CAplus.

Electroreduction of diethyl(trichloromethyl)phosphonate in the presence of aldehydes or ketones replaces the O atom of the carbonyl group by a dichloromethylene group. The yield of 1,1-dichloroethene product decreases substantially if the carbonyl compound carries strongly acidic hydrogen. In several cases the conversion of the 4-membered ring Wittig intermediate into its corresponding carbanion by heterolytic P-C bond cleavage was observed The intermediate carbanion is sufficiently stable to be intercepted by proton abstraction. These observations suggest that the decomposition of the Wittig 4-membered ring intermediate occurs along a 2-step pathway.

Recueil des Travaux Chimiques des Pays-Bas published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C24H20Ge, Application In Synthesis of 866-23-9.

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

Timmers, Peer H. A. published the artcileImproved drinking water quality after adding advanced oxidation for organic micropollutant removal to pretreatment of river water undergoing dune infiltration near The Hague, Netherlands, SDS of cas: 637-07-0, the publication is Journal of Hazardous Materials (2022), 128346, database is CAplus and MEDLINE.

Introduction of AOP decreased the number and concentration of OMP that were introduced during MARR, which decreased the risk of neg. impacts on ecol. and groundwater. The many uncertainties, such as seasonal and annual fluctuations of the intake water and in the infltration ponds, made it diffcult to determine if factors were directly affected by the AOP introduction. However, AOP did increase the amount of easily biol. degradable compounds, but these were diluted with non-AOP treated infltration water and degraded during transport to the dunes, making the effects on MARR negligible. Several OMP that were not removed during AOP, were removed during MARR. The overall OMP concentrations in resulting drinking water therefore decreased after introduction of AOP, without showing a measurable neg. effect on other water quality parameters.

Journal of Hazardous Materials 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 C16H12N2O2, SDS of cas: 637-07-0.

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

Allgeier, Alan M. published the artcileElectrochemically Controlling Ligand Binding Affinity for Transition Metals via RHLs: The Importance of Electrostatic Effects, HPLC of Formula: 1002-41-1, the publication is Journal of the American Chemical Society (1997), 119(3), 550-559, database is CAplus.

Redox-switchable hemilabile ligands (RHLs) were synthesized that incorporates ferrocene as the redox group and phosphine ether or phosphine thioether moieties as binding groups. These ligands, which complex to Rh(I) and Pd(II), yield electrochem. control over ligand binding affinity for transition metals in complexes of the following type: [M(η⁴-(η⁵-C₅H₄XCH₂CH₂PR₂)₂Fe)]^y+ (I: M = Rh, X = O, R = Ph (phenyl), y = 1; II: M = Rh, X = O, R = Cy (cyclohexyl), y = 1; III: M = Rh, X = S, R = Ph, y = 1; IV: M = Pd, X = O, R = Ph, y = 2; V: M = Pd, X = O, R = Cy, y = 2). In the case of V, ligand based oxidation decreases the ligand to metal binding constant by nearly ten orders of magnitude. An examination of the crystal structures of I, III, IV, and V and the electrochem. behavior of RHL-complexes and isoelectronic model complexes reveals that electrostatic effects play a significant role in the charge dependent behaviors of these complexes. Addnl., there is a correlation between the phosphine substituents and RHL-complex stability. As a general rule cyclohexyl groups stabilize the complexes in their oxidized states over Ph groups. RHLs provide a viable means of electrochem. controlling ligand binding affinity and thus the steric and electronic environment of bound transition metals.

Journal of the American Chemical Society published new progress about 1002-41-1. 1002-41-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 1,2-Bis(2-chloroethyl)disulfane, and the molecular formula is C4H8Cl2S2, HPLC of Formula: 1002-41-1.

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

van der Maaden, Koen published the artcileFluorescent Nanoparticle Adhesion Assay: a Novel Method for Surface pK_a Determination of Self-Assembled Monolayers on Silicon Surfaces, Related Products of chlorides-buliding-blocks, the publication is Langmuir (2012), 28(7), 3403-3411, database is CAplus and MEDLINE.

Since the computer industry enables one to generate smaller and smaller structures, silicon surface chem. is becoming increasingly important for (bio-)anal. and biol. applications. For controlling the binding of charged biomacromols. such as DNA and proteins on modified silicon surfaces, the surface pK_a is an important factor. Here the authors present a fluorescent nanoparticle adhesion assay as a novel method to determine the surface pK_a of silicon surfaces modified with weak acids or bases. This method is based upon electrostatic interactions between the modified silicon surface and fluorescent nanoparticles with an opposite charge. Silicon slides were modified with 3-aminopropyltriethoxysilane (APTES) and were further derivatized with succinic anhydride. Layer thickness of these surfaces was determined by ellipsometry. After incubating the surfaces with an amine-reactive fluorescent dye, fluorescence microscopy revealed that the silicon surfaces were successfully modified with amine- and carboxyl-groups. Two surface pK_a values were found for APTES surfaces by the fluorescent nanoparticle adhesion assay. The 1st surface pK_a (6.55 ± 0.73) was comparable with the surface pK_a obtained by contact angle titration (7.3 ± 0.8), and the 2nd surface pK_a (9.94 ± 0.19) was only found by using the fluorescent nanoparticle adhesion assay. The surface pK_a of the carboxyl-modified surface by the fluorescent nanoparticle adhesion assay (4.37 ± 0.59) did not significantly differ from that found by contact angle titration (5.7 ± 1.4). In conclusion, the authors have developed a novel method to determine the surface pK_a of modified silicon surfaces: the fluorescent nanoparticle adhesion assay. This method may provide a useful tool for designing pH-dependent electrostatic protein and particle binding/release and to design surfaces with a pH-dependent surface charge for (bio-)anal. lab-on-a-chip devices or drug delivery purposes.

Langmuir published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C23H28N2O4, Related Products of chlorides-buliding-blocks.

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

Zolnowska, Beata published the artcileN-(2-Arylmethylthio-4-chloro-5-methylbenzenesulfonyl)amide derivatives as potential antimicrobial agents-synthesis and biological studies, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene, the publication is International Journal of Molecular Sciences (2020), 21(1), 210, database is CAplus and MEDLINE.

A series of N-(2-arylmethylthio-4-chloro-5-methylbenzenesulfonyl)amides I [R = Ph, 3-F₃CC₆H₄, 4–F₃CC₆H₄, 1-naphthyl, 2-naphthyl] and II was synthesized. The antimicrobial activity of compounds I and II was evaluated on Gram-pos., Gram-neg. bacteria and fungal species. Experiments took into account investigation of antibacterial activity against planktonic cells as well as biofilms. Compounds I and II showed high bacteriostatic activity against staphylococci, with the most active mols. I [R = 3-F₃CC₆H₄] and II [R = 3-F₃CC₆H₄] presenting low MIC values of 4-8μg/mL against reference methicillin-resistant S. aureus (MRSA) and methicillin-sensitive S. aureus (MSSA) strains as well as clin. isolates. Compounds I [R = 3-F₃CC₆H₄] and II [R = 3-F₃CC₆H₄] also showed an ability to inhibit biofilms formed by MRSA and MSSA. The potential of I [R = 3-F₃CC₆H₄] and II [R = 3-F₃CC₆H₄] as antibiofilm agents was supported by cytotoxicity assays that indicated no cytotoxic effect either on normal cells of human keratinocytes or on human cancer cells, including cervical, colon, and breast cancer lines.

International Journal of Molecular Sciences 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 C8H9NOS, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene.

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

Moldavskaya, N. A. published the artcileHydrosilylation of olefins in the presence of phosphoryl complexes of nickel(II), Recommanded Product: Dichloro(methyl)(octyl)silane, the publication is Zhurnal Obshchei Khimii (1981), 51(7), 1621-4, database is CAplus.

Hydrosilylating CH₂:CHR (R = hexyl, pentyl) with Cl₂HSiMe gave mixtures of RCH₂CH₂SiMeCl₂ and RCH₂CH₂SiMeHCl in the presence of NiL₂X₂ (L = substituted phosphine oxide, substituted phosphine, X = Br, NO₃, Cl) at 120° for 10 h at concentrations alkene:Cl₂HSiMe:nickel complex of 1:1:10^-3 mol. Catalyst effectiveness was: Ph₃PO < R¹Ph₂PO (R¹ = alkyl) < R¹₂PhPO < R¹₃PO.

Zhurnal Obshchei Khimii published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Recommanded Product: Dichloro(methyl)(octyl)silane.

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

Bernardo, Paul H. published the artcileSynthesis of a rhodanine-based compound library targeting Bcl-XL and Mcl-1, Recommanded Product: 3-Chloro-4-isopropoxyphenylboronic acid, the publication is Pure and Applied Chemistry (2011), 83(3), 723-731, database is CAplus.

Symposium report presented at the 18th International Conference on Organic Synthesis (ICOS) Bergen, Norway 1-6 August, 2010. A small library of pyridine-based rhodanine analogs of BH-3I-1 [i.e., 5-[(4-bromophenyl)methylene]-α-(1-methylethyl)-4-oxo-2-thioxo-3-thiazolidineacetic acid] was designed, the synthesis of the target compound was achieved using amino acids as starting materials and the products thus obtained were screened against B-cell lymphoma (extra large, Bcl-XL, antiapoptotic protein, inhibitor of apoptosis proteins) and myeloid cell leukemia sequence 1 (Mcl-1) for the ability to displace 5-(carboxy)fluorescein-labeled Bak peptide (Flu-Bak). Differences in selectivity toward Bcl-XL and Mcl-1 were observed and the binding modes of selected compounds were studied further. The results may be useful in designing potent small-mol. inhibitors of Bcl-XL and Mcl-1 as well as selective Mcl-1 inhibitors.

Pure and Applied Chemistry 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 C9H12BClO3, Recommanded Product: 3-Chloro-4-isopropoxyphenylboronic acid.

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