Category: chlorides-buliding-blocks

Eaton, John K. published the artcileStructure-activity relationships of GPX4 inhibitor warheads, Category: chlorides-buliding-blocks, the publication is Bioorganic & Medicinal Chemistry Letters (2020), 30(23), 127538, database is CAplus and MEDLINE.

Direct inhibition of GPX4 requires covalent modification of the active-site selenocysteine. While phenotypic screening has revealed that activated alkyl chlorides and masked nitrile oxides can inhibit GPX4 covalently, a systematic assessment of potential electrophilic warheads with the capacity to inhibit cellular GPX4 has been lacking. Here, we survey more than 25 electrophilic warheads across several distinct GPX4-targeting scaffolds. We find that electrophiles with attenuated reactivity compared to chloroacetamides are unable to inhibit GPX4 despite the expected nucleophilicity of the selenocysteine residue. However, highly reactive propiolamides we uncover in this study can substitute for chloroacetamide and nitroisoxazole warheads in GPX4 inhibitors. Our observations suggest that electrophile masking strategies, including those we describe for propiolamide- and nitrile-oxide-based warheads, may be promising for the development of improved covalent GPX4 inhibitors.

Bioorganic & Medicinal Chemistry Letters published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, Category: chlorides-buliding-blocks.

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

Yao, Shengxin published the artcileLow-symmetry porphyrin analogues with flexible open-form dithienylethene moieties: Intense near IR Q bands, SDS of cas: 219537-97-0, the publication is Dyes and Pigments (2021), 109440, database is CAplus.

Two low-symmetry porphyrinoids with a dithienylethene (DTE) moiety incorporated into the core macrocycle, that contain either a CHO or a bridging Me ether group, have been serendipitously synthesized through a Rothemund condensation reaction. X-ray crystal structures demonstrate that CHO and bridging Me ether groups on the DTE moiety changes the conformation of the macrocycle and significantly influences the relative energies of the frontier orbitals of the porphyrinoid π-system and results in a remarkable enhancement and broadening of the Q bands in the 450-800 nm region compared to those of conventional tetrapyrrolic porphyrins. The introduction of a DTE moiety provides an effective strategy for achieving the intense near-IR region absorption that is required for many of the practical applications of porphyrinoids, through a disruption of the macrocyclic π-system that is similar to that of naturally occurring corrins.

Dyes and Pigments 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 C19H14O2, SDS of cas: 219537-97-0.

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

Li, Huan-huan published the artcileAcute toxicity of 4-chloro-2-fluoro-3-methoxybenzeneboronic acid, Recommanded Product: (4-Chloro-2-fluoro-3-methoxyphenyl)boronic acid, the publication is Shiyong Yufang Yixue (2016), 23(2), 226-228, database is CAplus.

Objective To study the acute oral toxicity, acute dermal toxicity, acute dermal irritation and acute eye irritation of 4-chlorine-2-fluoro-3-methoxybenzeneboronic acid. Methods Tests for acute oral toxicity, acute dermal toxicity, acute dermal irritation and acute eye irritation of 4-chlorine-2-fluoro-3-methoxybenzeneboronic acid were conducted in compliance with the Guidelines for the Testing of Chems. (State Environmental Protection Administration, 2004). Results Acute oral toxicity test showed that the oral LD₅₀ in female and male rats was 369 mg/kg (95% CI: 227-599 mg/kg) and 233 mg/kg (95% CI: 160-399 mg/kg) resp. Pulmonary congestion in the dead rats was observed by anatomy. Acute dermal toxicity test showed that the dermal LD₅₀ in rats was higher than 2, 500 mg/kg. Acute dermal irritation test showed that the mean value of the total integral for each observation point after acute dermal exposure, and the highest integral recorded for all observation points were “0”. Acute eye irritation test showed that the eye irritation was classified into Grade 5. Conclusions Acute oral toxicity of 4-chloro-2-fluoro-3-methoxybenzeneboronic acid for female and male rats belongs to low toxicity and moderate toxicity resp. Lung may be the target organ. Acute dermal toxicity for rats is classified into practical non-toxic. It is not a dermal irritant to albino rabbits, but may be a medium ocular irritant.

Shiyong Yufang Yixue published new progress about 944129-07-1. 944129-07-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester,, name is (4-Chloro-2-fluoro-3-methoxyphenyl)boronic acid, and the molecular formula is C7H7BClFO3, Recommanded Product: (4-Chloro-2-fluoro-3-methoxyphenyl)boronic acid.

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

Bentz, Bryan L. published the artcileCharacterization of organic dyes aided by hydrogen-deuterium exchange in liquid secondary ion mass spectrometry (liquid SIMS), Synthetic Route of 4569-86-2, the publication is International Journal of Mass Spectrometry and Ion Processes (1987), 115-30, database is CAplus.

The SIMS of several cationic dyes dissolved in glycerol and glycerol-d₈ were presented. Dyes containing active hydrogens exhibited mass shifts in the spectra obtained from labeled and unlabeled glycerol, allowing inferences about mol. structure to be made. The exchange methodol. is useful in the study of reductive processes occurring in the liquid matrix and in distinguishing isomeric forms of dye compounds

International Journal of Mass Spectrometry and Ion Processes published new progress about 4569-86-2. 4569-86-2 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride, and the molecular formula is C22H23ClN4, Synthetic Route of 4569-86-2.

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

Coudret, Christophe published the artcileElectrochemical oxidation mechanism of photochromic switches: electrodimerisation, ring closure or ring opening?, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Portugaliae Electrochimica Acta (2007), 25(1), 89-101, database is CAplus.

Simple photochromic dithienylethylenes with either perfluoro or perhydro cyclopentene ring, and a variety of substituents were prepared and their electrochem. behavior explored by cyclic voltammetry. All present 2 electron irreversible oxidation waves in their open form, but the radical cation of the open isomers can follow 3 different reaction pathways: dimerization, ring closure, or ring reopening. Whereas the chloro derivative follows a dimerization mechanism (EC₂E mechanism), the phenylthio substituted compound displays an efficient oxidative ring closure (ECE or DISP1 mechanism). Interesting electrochromic behavior is associated with this compound, a redox process occurring in the range 0.5-1.5 V is observed by monitoring the absorption species changes (colored species) in function of the applied potential. Also, electrochromic properties are also found in the corresponding ring closed isomers. Depending on the substituents on the thiophene ring and the perfluoro or perhydro cyclopentene ring, open isomers can be obtained from oxidation (chem. or electrochem.) of the corresponding ring closed isomers via EC mechanism. These observations should be taken into account for the potential design of 3-state conjugated systems and photoelec. mol. switching.

Portugaliae Electrochimica Acta 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, Recommanded Product: 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

Hahn, Elliot F. published the artcileNarcotic antagonists. 4. Carbon-6 derivatives of N-substituted noroxymorphones as narcotic antagonists, Related Products of chlorides-buliding-blocks, the publication is Journal of Medicinal Chemistry (1975), 18(3), 259-62, database is CAplus and MEDLINE.

A series of 11 title compounds was prepared from naloxone [465-65-6] and naltrexone [16590-41-3] by the Wittig reaction, or by reaction with sulfur ylides or alkyllithium reagents. Most of the derivatives had oral potencies superior to the parent compounds in hot plate and tail clip tests in mice. 6-Desoxy-6-methylenenaloxone (I) [42971-34-6] and 6-desoxy-6-methylenenaltrexone (II) [55096-26-9] had the greatest increase in potency over parent compounds Structure-activity relations were discussed.

Journal of Medicinal Chemistry published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Related Products of chlorides-buliding-blocks.

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

Cross, R. Matthew published the artcileOrally Bioavailable 6-Chloro-7-methoxy-4(1H)-quinolones Efficacious against Multiple Stages of Plasmodium, Recommanded Product: 4-Chloro-2-methylphenylboronic acid, the publication is Journal of Medicinal Chemistry (2014), 57(21), 8860-8879, database is CAplus and MEDLINE.

The continued proliferation of malaria throughout temperate and tropical regions of the world has promoted a push for more efficacious treatments to combat the disease. Unfortunately, more recent remedies such as artemisinin combination therapies have been rendered less effective due to developing parasite resistance, and new drugs are required that target the parasite in the liver to support the disease elimination efforts. Research was initiated to revisit antimalarials developed in the 1940s and 1960s that were deemed unsuitable for use as therapeutic agents as a result of poor understanding of both physicochem. properties and parasitol. Structure-activity and structure-property relationship studies were conducted to generate a set of compounds with the general 6-chloro-7-methoxy-2-methyl-4(1H)-quinolone scaffold which were substituted at the 3-position with a variety of Ph moieties possessing various properties. Extensive physicochem. evaluation of the quinolone series was carried out to down-select the most promising 4(1H)-quinolones, P4Q-391 (7), 6-Chloro-7-methoxy-2-methyl-3-(2-methyl-4-(4(trifluoromethoxy)phenoxy)phenyl)-quinolin-4(1H)-one (62), 6-Chloro-3-(6-(2-fluoro-4-(trifluoromethyl)phenyl)pyridin-3-yl)-7-methoxy-2-methylquinolin-4(1H)-one (66), and 6-Chloro-7-methoxy-2-methyl-3-(6-(4-(trifluoromethoxy)phenyl)pyridin-3-yl)quinolin-4(1H)-one(67), which possessed low-nanomolar EC₅₀ values against W2 and TM90-C2B as well as improved microsomal stability. Addnl., in vivo Thompson test results using Plasmodium berghei in mice showed that these 4(1H)-quinolones were efficacious for the reduction of parasitemia at >99% after 6 days.

Journal of Medicinal Chemistry 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 C7H8BClO2, Recommanded Product: 4-Chloro-2-methylphenylboronic acid.

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

Albrecht, William L. published the artcileBis-basic-substituted polycyclic aromatic compounds. New class of antiviral agents. 6. Bis-basic-substituted fluoranthenes, HPLC of Formula: 4584-49-0, the publication is Journal of Medicinal Chemistry (1974), 17(11), 1150-6, database is CAplus and MEDLINE.

Bis-basic esters, ketones, ethers, and alkanes of fluoranthene, given s.c., had potent antiviral activity against encephalomyocarditis virus in mice. The ketones were the most active when given orally. For example, 3,9-fluoranthenedicarboxylic acid bis[3-(diethylamino)propyl] ester-2HCl (I) [27086-86-8] and 1,1′-(3,9-fluoranthenediyl)bis[2-(dimethylylamino)ethanone]-2HCl (II) [35689-81-7] increased the survival time of infected mice by 1.82- 1.94-fold resp., at 50 mg/kg s.c. I and II were effective against both RNA (Semliki Forest) and DNA (vaccinia) virus infections in mice. I also enhanced the antibody response to sheep erythrocytes. II was prepared by reaction of fluoranthene [206-44-0] with 2-chloroacetyl chloride [79-04-9], followed by Me2NH.

Journal of Medicinal Chemistry published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C5H13Cl2N, HPLC of Formula: 4584-49-0.

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

Mistry, Nisha published the artcileCatalytic asymmetric synthesis of geminal-dicarboxylates, Related Products of chlorides-buliding-blocks, the publication is Chemical Science (2018), 9(29), 6307-6312, database is CAplus and MEDLINE.

Stereogenic acetals, spiroacetals and ketals are well-studied stereochem. features that bear two heteroatoms at a common carbon atom. These stereocenters are normally found in cyclic structures while linear (or acyclic) analogs bearing two heteroatoms are rare. Chiral geminal-dicarboxylates are illustrative, there is no current way to access this class of compounds while controlling the stereochem. at the carbon center bound to two oxygen atoms. Here, a rhodium-catalyzed asym. carboxylation of ester-containing allylic bromides to form stereogenic carbon centers bearing two different carboxylates with high yields and enantioselectivities is reported. The products, which are surprisingly stable to a variety of acidic and basic conditions, can be manipulated with no loss of enantiomeric purity as demonstrated by ring closing metathesis reactions to form chiral lactones, which have been extensively used as building blocks in asym. synthesis.

Chemical Science published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, Related Products of chlorides-buliding-blocks.

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

Feofanov, Mikhail published the artcileSolid-state construction of zigzag periphery via intramolecular C-H insertion induced by alumina-mediated C-F activation, Application of 4-Chloro-2-methylphenylboronic acid, the publication is Chemical Communications (Cambridge, United Kingdom) (2021), 57(92), 12325-12328, database is CAplus and MEDLINE.

Here, the alumina-mediated C-F bond activation (AmCFA) enabled construction of PAHs with zigzag periphery was reported. This method includes formal Csp³-H activation and opens an avenue for generation of carbon-based nanomagnets directly on technol. relevant surfaces.

Chemical Communications (Cambridge, United Kingdom) 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 C7H8BClO2, Application of 4-Chloro-2-methylphenylboronic acid.

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