Tag: M.W=200-250

Bendale, Pravin published the artcileSecond Generation Tetrahydroquinoline-Based Protein Farnesyltransferase Inhibitors as Antimalarials, Quality Control of 10543-42-7, the publication is Journal of Medicinal Chemistry (2007), 50(19), 4585-4605, database is CAplus and MEDLINE.

Substituted tetrahydroquinolines (THQs) have been previously identified as inhibitors of mammalian protein farnesyltransferase (PFT). Previously it was shown that blocking PFT in the malaria parasite led to cell death and that THQ-based inhibitors are the most potent among several structural classes of PFT inhibitors (PFTIs). THQ-based PFTIs, e.g., I, were synthesized and several compounds were discovered that inhibit the malarial enzyme in the sub- to low-nanomolar range and that block the growth of the parasite (P. falciparum) in the low-nanomolar range. This body of structure-activity data can be rationalized in most cases by consideration of the X-ray structure of one of the THQs bound to mammalian PFT together with a homol. structural model of the malarial enzyme. The results of this study provide the basis for selection of antimalarial PFTIs for further evaluation in preclin. drug discovery assays.

Journal of Medicinal Chemistry published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, Quality Control of 10543-42-7.

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

Aisaki, Ken-ichi published the artcilePercellome project: research on molecular mechanisms of toxicological responses based on transcriptomics and epigenetics, Related Products of chlorides-buliding-blocks, the publication is Nippon Yakurigaku Zasshi (2022), 157(3), 200-206, database is CAplus and MEDLINE.

The author are constructing the “Percellome Database” containing many transcriptomes of mice exposed to a series of chems. to elucidate the mol. mechanism of toxicity and to develop toxicity prediction technol. Acute toxicity of a chem. can be predicted to a certain extent by searching the similarity of the transcriptomes obtained by the single-dose exposure experiments In addition, the author are analyzing the relation between the transcriptome and the epigenome i.e. histone modification and genomic DNA methylation to understand the mol. mechanism of the repeated dose toxicity. The author are attempting to expand the scale and improve the efficiency of the anal. by introducing artificial intelligence technologies. This approach should maximize the use of toxicogenomics technol. for optimizing the exptl. protocols for repeated dose toxicity studies towards 3Rs principle, and optimizing the process of in silico toxicity prediction by combining the available big data.

Nippon Yakurigaku Zasshi 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, Related Products of chlorides-buliding-blocks.

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

Li, Ridong published the artcileDiscovery and structure-activity relationship of novel 4-hydroxy-thiazolidine-2-thione derivatives as tumor cell specific pyruvate kinase M2 activators, Product Details of C9H5ClO4S, the publication is European Journal of Medicinal Chemistry (2018), 48-65, database is CAplus and MEDLINE.

Pyruvate kinase M2 isoform (PKM2) is a crucial protein responsible for aerobic glycolysis of cancer cells. Activation of PKM2 may alter aberrant metabolism in cancer cells. In this study, we discovered a 4-hydroxy-thiazolidine-2-thione compound 2 as a novel PKM2 activator from a random screening of an inhouse compound library. Then a series of novel 4-hydroxy-thiazolidine-2-thione derivatives were designed and synthesized for screening as potent PKM2 activators. Among these, some compounds showed higher PKM2 activation activity than lead compound 2 and also exhibited significant anti-proliferative activities on human cancer cell lines at nanomolar concentration The compound 5w was identified as the most potent antitumor agent, which showed excellent anti-proliferative effects with IC₅₀ values from 0.46 μM to 0.81 μM against H1299, HCT116, Hela and PC3 cell lines. 5w also showed less cytotoxicity in non-tumor cell line HELF compared with cancer cells. In addition, Preliminary pharmacol. studies revealed that 5w arrests the cell cycle at the G2/M phase in HCT116 cell line. The best PKM2 activation by compound 5t was rationalized through docking studies.

European Journal of Medicinal Chemistry published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, Product Details of C9H5ClO4S.

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

Itoh, Miki published the artcilePreparation and evaluation of two-dimensional polymer films by chemical modification of an alkanethiol self-assembled monolayer for protection of copper against corrosion, HPLC of Formula: 14799-93-0, the publication is Journal of the Electrochemical Society (1995), 142(11), 3696-704, database is CAplus.

Chem. modification of an 11-mercapto-1-undecanol (MUO) self-assembled monolayer chemisorbed on the Cu surface with alkyltrichlorosilanes (C_nTCS) has improved the protective ability of the monolayers against corrosion of Cu in aqueous and atm. environments. Further improvements of the ability were studied by modification of the MUO self-assembled layer adsorbed on Cu with tetrachlorosilane (TCS) and 1,2-bis(trichlorosilyl)ethane (BTSCE) for constructing a two-dimensional polymer structure in the assembly layer on the surface. The TCS or BTSCE-modified MUO monolayer was further treated with coupling agents like octyldimethylchlorosilane, octylmethyldichlorosilane, and octyltrichlorosilane. The modified monolayers were characterized by FTIR reflection spectroscopy and contact angle measurements. Although the protective abilities of the modified layers against the cathodic reaction of Cu corrosion in aerated 0.5M Na₂SO₄ were not necessarily increased remarkably from those of the C_nTCS-modified MUO monolayers, network structures arising from two-dimensional polymerization with lateral siloxane linkages between mols. adsorbed on Cu resulted in enhancement of the protective ability against the anodic process.

Journal of the Electrochemical Society 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, HPLC of Formula: 14799-93-0.

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

Chung, Woojung published the artcileTime-Resolved Observation of Chiral-Index-Selective Wrapping on Single-Walled Carbon Nanotube with Non-Aromatic Polysilane, Name: Dichloro(methyl)(octyl)silane, the publication is Journal of the American Chemical Society (2013), 135(6), 2374-2383, database is CAplus and MEDLINE.

In the present paper, we ascertain two novel findings on chiral-index-selective binding/separating of single-walled carbon nanotubes (SWNTs) with a nonaromatic polymer, poly(dialkylsilane) (PSi). PSi is a typical σ-conjugated polymer, composed of alkyl side chains attached to the silicon (Si)-catenated main chain. First, PSi’s with linear alkyl side chains showed significant diameter-selective wrapping for SWNTs with ca. 0.9 nm in diameter, resulting in the selective separation of (7,6) and (9,4) SWNTs. Its driving force was demonstrated to be cooperative CH-π interactions among the alkyl side chains of PSi’s and the curved graphene of SWNTs. Second, the dynamic wrapping behavior of PSi’s onto SWNTs was elucidated with time-resolved UV spectroscopy. Highly anisotropic UV absorption of PSi along the Si main chain was utilized as a “chromophoric indicator” to monitor the global/local conformations, which enabled us to track kinetic structural changes of PSi’s on SWNTs. Consequently, we concluded that upon wrapping, flexible/helical PSi with an average dihedral angle (φ) of 145° and Kuhn’s segment length (λ^-1) of 2.6 nm interconverted to the more stiffer/planar conformation with 170° and λ^-1 of 7.4 nm. Furthermore, through kinetic analyses of the time-course UV spectra, we discovered the fact that PSi’s involve three distinct structural changes during wrapping. That is, (i) the fast adsorption of several segments within dead time of mixing (<30 ms), following (ii) the gradual adsorption of loosely wrapped segments with the half-maximum values (τ₁) of 31.4 ms, and (iii) the slow rearrangement of the entire chains with τ₂ of 123.1 ms, coupling with elongation of the segment lengths. The present results may be useful for rational design of polymers toward chiral-index-selective binding/separating of desired (n,m) SWNTs.

Journal of the American Chemical Society 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, Name: Dichloro(methyl)(octyl)silane.

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

Gorst-Allman, Charles P. published the artcileSynthetic approaches to the austocystins, mycotoxins from Aspergillus ustus. Part I, Name: 3-Chloro-2,6-dimethoxybenzoic acid, the publication is South African Journal of Chemistry (1978), 31(4), 143-8, database is CAplus.

Two approaches to the synthesis of ustocystin A (I) were investigated. 2,6-(MeO)₂C₆H₃CO₂H was converted into the 3-Cl derivative (II) by chlorination with SO₂Cl₂. The acid chloride of II was treated with 2,4,6-(MeO)₃C₆H₂Li to give III (R = Me), which was selectively demethylated to give III (R = H; IV). Alk. condensation of IV gave 2 xanthoses V [R = H, R¹ = Cl; R = Cl, R¹ = H (VI)] in a 12:1 ratio. VI was the desired xanthone for I preparation The focal point of the second approach was the use of a 4-methylcoumarin as a masked dehydrofurobenzofuran. VII was necessary for this approach but its isomer VIII (R = Me) was obtained. The x-ray structure of VIII (R = H) was determined

South African Journal of Chemistry published new progress about 36335-47-4. 36335-47-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Ether, name is 3-Chloro-2,6-dimethoxybenzoic acid, and the molecular formula is C9H9ClO4, Name: 3-Chloro-2,6-dimethoxybenzoic acid.

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

Song, Geyang published the artcileGeneral Method for the Amination of Aryl Halides with Primary and Secondary Alkyl Amines via Nickel Photocatalysis, Product Details of C12H15ClO3, the publication is Journal of Organic Chemistry (2022), 87(15), 10285-10297, database is CAplus and MEDLINE.

It was reported that Ni(II)-bipyridine complex catalyzed efficient C-N coupling of aryl chlorides and bromides with various primary and secondary alkyl amines under direct excitation with light. Intramol. C-N coupling was also demonstrated. The feasibility and applicability of the protocol in organic synthesis was attested by more than 200 examples.

Journal of Organic Chemistry 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 C8H7NaO4S, Product Details of C12H15ClO3.

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

Doyle, F. P. published the artcileDerivatives of 6-aminopenicillanic acid. V. Analogs of 2,6-dimethoxyphenylpenicillin with enhanced stability towards acids, Application of 3-Chloro-2,6-dimethoxybenzoic acid, the publication is Journal of the Chemical Society (1963), 497-506, database is CAplus.

Various derivatives of 2,6-dimethoxybenzoic acid containing electron-attracting substituents elsewhere in the ring have been synthesized. Analogs in which one or both of the methoxy groups have been replaced by other substituents have also been prepared Reaction of the acid chlorides with 6-aminopenicillanic acid gave penicillins which were less readily inactivated by acid than 2,6-dimethoxyphenylpenicillin. The stability at low pH increased with increasing strength of the side-chain acids.

Journal of the Chemical Society published new progress about 36335-47-4. 36335-47-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Ether, name is 3-Chloro-2,6-dimethoxybenzoic acid, and the molecular formula is C9H9ClO4, Application of 3-Chloro-2,6-dimethoxybenzoic acid.

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

Brasca, Maria Gabriella published the artcilePyrrole-3-carboxamides as potent and selective JAK2 inhibitors, Safety of (5-Chloro-2-(trifluoromethyl)phenyl)boronic acid, the publication is Bioorganic & Medicinal Chemistry (2014), 22(17), 4998-5012, database is CAplus and MEDLINE.

We report herein the discovery, structure guided design, synthesis and biol. evaluation of a novel class of JAK2 inhibitors. Optimization of the series led to the identification of the potent and orally bioavailable JAK2 inhibitor (I; NMS-P953). I displayed significant tumor growth inhibition in SET-2 xenograft tumor model, with a mechanism of action confirmed in vivo by typical modulation of known biomarkers, and with a favorable pharmacokinetic and safety profile.

Bioorganic & Medicinal Chemistry published new progress about 1195945-67-5. 1195945-67-5 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Boronic acid and ester,Benzene,Boronic Acids,Boronic Acids,Boronic acid and ester, name is (5-Chloro-2-(trifluoromethyl)phenyl)boronic acid, and the molecular formula is C7H5BClF3O2, Safety of (5-Chloro-2-(trifluoromethyl)phenyl)boronic acid.

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

Zhou, Xin published the artcileElectrochemical reduction of fluoroalkyl sulfones for radical fluoroalkylation of alkenes, Formula: C9H5Cl2F3, the publication is Chemical Communications (Cambridge, United Kingdom) (2021), 57(70), 8750-8753, database is CAplus and MEDLINE.

Radical fluoroalkylation of alkenes has been developed by electrochem. reduction of fluoroalkyl sulfones. A series of electron-deficient alkenes readily underwent hydrofluoroalkylation in good to excellent yields. This chem. represents the first example of electrochem. generation of fluoroalkyl radicals from sulfones, which are used for practical radical fluoroalkylation of organic compounds

Chemical Communications (Cambridge, United Kingdom) published new progress about 864725-22-4. 864725-22-4 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Alkenyl,Benzene, name is 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene, and the molecular formula is C8H13NO3, Formula: C9H5Cl2F3.

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