Chlorides-buliding-blocks

Xia, Zhenqiang published the artcileThe synthesis and bioactivity of pyrrolo[2,3-d]pyrimidine derivatives as tyrosine kinase inhibitors for NSCLC cells with EGFR mutations, Recommanded Product: 3-Chloro-4-fluoronitrobenzene, the publication is European Journal of Medicinal Chemistry (2021), 113711, database is CAplus and MEDLINE.

A series of pyrrolo[2,3-d]pyrimidine derivatives able to block mutant EGFR activity in a covalent manner were synthesized, through optimized Buchwald-Hartwig C-N cross coupling reactions. Their preliminary bioactivity and corresponding inhibitory mechanistic pathways were investigated at mol. and cellular levels. Several compounds exhibited increased biol. activity and enhanced selectivity compared to the control compound Notably, N-(3-((2-((3-amino-4-(4-methylpiperazin-1-yl)phenyl)amino)-7H-cyclopenta[d]pyrimidin-4-yl)oxy)phenyl)acrylamide selectively inhibits HCC827 cells harboring the EGFR activating mutation with up to 493-fold increased efficacy compared to in normal HBE cells. Augmented selectivity was also confirmed by kinase enzymic assay, with the test compound selectively inhibiting the T790 M activating mutant EGFRs (IC₅₀ values of 0.21 nM) with up to 104-fold potency compared to the wild-type EGFR (IC₅₀ values of 22 nM). Theor. simulations provided structural evidence of selective kinase inhibitory activity. Thus, this series of pyrrolo[2,3-d]pyrimidine derivatives could serve as a starting point for the development of new EGFR-TKIs.

European Journal of Medicinal 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 C12H21NO7, Recommanded Product: 3-Chloro-4-fluoronitrobenzene.

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

Liao, Li-min published the artcileStructural characterization and acute toxicity simulation for nitroaromatic compounds, Name: 3-Chloro-4-fluoronitrobenzene, the publication is Chinese Journal of Structural Chemistry (2016), 35(3), 449-456, database is CAplus.

Three-dimensional holog. vector of at. interaction field (3D-HoVAIF) is used to characterize mol. structures of 45 nitroarom. compounds Two quant. structure-toxicity relationship (QSAR) models are built up by stepwise regression (SMR), multiple linear regression (MLR) and partial least-squares regression (PLS). The correlation coefficients (R) of the models are 0.960 and 0.961, resp. Then the models are evaluated by performing the cross-validation with the leave-one-out (LOO) procedure, and the correlation coefficients (R_CV) are 0.949 and 0.941, resp. The results show that the descriptors can successfully describe the structures of organic compounds The stability and predictability of the model are satisfactory.

Chinese Journal of Structural 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 C6H3ClFNO2, Name: 3-Chloro-4-fluoronitrobenzene.

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

Wilson, G. Edwin Jr. published the artcileHalosulfonium salts. IX. Halogen-induced ring cleavages of 1,3-oxathiolanes, Formula: C4H8Cl2S2, the publication is Journal of Organic Chemistry (1976), 41(6), 966-8, database is CAplus.

Halogenation of the 2,2-disubstituted 1,3-oxathiolanes derived from benzophenone, diisopropyl ketone, and cycloheptanone provides a route to regenerate the ketone in good yield. For diisopropyl ketone addnl. products, Me2CHCOCMe2S(CH2)2R (R = Cl, Br), are obtained.

Journal of Organic Chemistry 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 C7H7BF2O3, Formula: C4H8Cl2S2.

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

Johnson, Joshua L. published the artcileOptimal pH 8.5 to 9 for the hydrolysis of vixotrigine and other basic substrates of carboxylesterase-1 in human liver microsomes, Quality Control of 637-07-0, the publication is Xenobiotica (2022), 52(2), 105-112, database is CAplus and MEDLINE.

Vixotrigine is a voltage- and use-dependent sodium channel blocker under investigation for the potential treatment of neuropathic pain. One of the major in vivo metabolic pathways of vixotrigine in humans is the hydrolysis of the carboxamide to form the carboxylic acid metabolite M14. The in vitro formation of M14 in human hepatocytes was inhibited by the carboxylesterase (CES) inhibitor Bis(4-nitrophenyl) phosphate in a concentration-dependent manner. The hydrolysis reaction was identified to be catalyzed by recombinant human CES1b. Initial observation of only trace level formation of M14 in human liver microsomes at pH 7.4 caused us to doubt the involvement of CES1, an enzyme localised at the endoplasmic reticulum and the dominant carboxylesterase in human liver. Further investigation has revealed that optimal pH for the hydrolysis of vixotrigine and two other basic substrates of CES1, methylphenidate and oseltamivir, in human liver microsomes was pH 8.5-9 which is higher than their resp. pKa(base), suggesting that neutral form of basic substrates is probably preferred for CES1 catalysis in liver microsomes.

Xenobiotica 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, Quality Control of 637-07-0.

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

Dong, Jinyun published the artcileDiscovery of heterocycle-containing α-naphthoflavone derivatives as water-soluble, highly potent and selective CYP1B1 inhibitors, COA of Formula: C6H4ClNO2, the publication is European Journal of Medicinal Chemistry (2021), 112895, database is CAplus and MEDLINE.

A set of forty-six 6,7,10-trimethoxy-α-naphthoflavone derivatives I [R = 2-furyl, 2-chloro-4-pyridyl, 5-bromo-2-pyridyl, etc.] was synthesized and screened against CYP1 enzymes, leading to the identification of fluorine-containing compound I [R = 5-bromo-2-pyridyl] as the most potent and selective CYP1B1 inhibitor (IC₅₀ value of 0.07 nM), being 84-fold more potent than that of the template mol. ANF. Alternatively, the amino-substituted derivative I [R = 4-amino-3-pyridyl] not only possessed a potent inhibitory effect on CYP1B1 (IC₅₀ value of 0.98 nM), but also had a substantially increased water solubility as compared with the lead ANF. The current study expanded the structural diversity of CYP1B1 inhibitors and compound I [R = 4-amino-3-pyridyl] could be considered as a promising starting point with great potential for further studies.

European Journal of Medicinal Chemistry 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, COA of Formula: C6H4ClNO2.

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

Liu, Qiufeng published the artcileStructure-Guided Discovery of Novel, Potent, and Orally Bioavailable Inhibitors of Lipoprotein-Associated Phospholipase A2, Application of 3-Chloro-4-fluoronitrobenzene, the publication is Journal of Medicinal Chemistry (2017), 60(24), 10231-10244, database is CAplus and MEDLINE.

Lipoprotein-associated phospholipase A2 (Lp-PLA2) is a promising therapeutic target for atherosclerosis, Alzheimer’s disease, and diabetic macular edema. Here the authors report the identification of novel sulfonamide scaffold Lp-PLA2 inhibitors derived from a relatively weak fragment. Similarity searching on this fragment followed by mol. docking leads to the discovery of a micromolar inhibitor with a 300-fold potency improvement. Subsequently, by the application of a structure-guided design strategy, a successful hit-to-lead optimization was achieved and a number of Lp-PLA2 inhibitors with single-digit nanomolar potency were obtained. After preliminary evaluation of the properties of drug-likeness in vitro and in vivo, compound 37 (4-amino-N-(4-(4-chloro-3-(trifluoromethyl)phenoxy)-3-cyanophenyl)benzenesulfonamide) stands out from this congeneric series of inhibitors for good inhibitory activity and favorable oral bioavailability in male Sprague-Dawley rats, providing a quality candidate for further development. The present study thus clearly demonstrates the power and advantage of integrally employing fragment screening, crystal structures determination, virtual screening, and medicinal chem. in an efficient lead discovery project, providing a good example for structure-based drug design.

Journal of Medicinal 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 C6H3ClFNO2, Application of 3-Chloro-4-fluoronitrobenzene.

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

Li, Jun published the artcileIndium-promoted preparation of α-methylene-γ-trifluoromethyl-γ-lactams via one-pot reaction, Category: chlorides-buliding-blocks, the publication is Youji Huaxue (2017), 37(11), 2985-2992, database is CAplus.

An one-pot reaction of trifluoroacetaldehyde Me hemiacetal or trifluoroketones, acylhydrazines and Et 2-(bromomethyl)acrylate promoted by indium powder was investigated, and a series of α-methylene-γ-trifluoromethyl-γ-lactams were obtained with high yields. The features of this process included readily available starting materials as trifluoromethyl source, mild conditions and easy operation. The reaction provided a new method for the synthesis of trifluoromethylated α-methylene-γ-lactams.

Youji Huaxue published new progress about 5860-95-7. 5860-95-7 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Benzene,Ketone, name is 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, and the molecular formula is C8H4ClF3O, Category: chlorides-buliding-blocks.

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

Li, Ziyong published the artcileVisible light-activated optical switching behaviors of tetra-/triphenylethene-dithienylethene-BF₂bdk triad, Synthetic Route of 219537-97-0, the publication is Dyes and Pigments (2020), 108686, database is CAplus.

Developing new visible light-triggered fluorescent mol. photoswitches is highly desirable for potential application in the fields of photoresponsive optoelectronics and photopharmacol. In this contribution, two novel tetra-/triphenylethene-dithienylethene-BF₂bdk triads (TDB1 and TDB2) were designed and prepared by appending tetra-/triphenylethene and BF₂bdk moieties at the termini of dithienylethene unit. Before irradiation with blue light at 460-470 nm, they showed an intense emission in solution and in the PMMA film state, suggesting that the AIE effect of tetra-/triphenylethene was inhibited, and functioned only as electron-donating groups. Moreover, upon alternating irradiation with blue/NIR light, TDB1 and TDB2 displayed effective fluorescent switching behaviors and NIR photochromism in toluene and the PMMA film. Therefore, they would be utilized as novel visible light-triggered switches integrated in smart optoelectronic materials. The DFT calculations further validate the differences for their optical properties in the experiments

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 C15H14Cl2S2, Synthetic Route of 219537-97-0.

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

Zhang, Haining published the artcileA solid-state fluorescence switch based on triphenylethene-functionalized dithienylethene with aggregation-induced emission, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Frontiers in Chemistry (Lausanne, Switzerland) (2021), 665880, database is CAplus and MEDLINE.

In this contribution, three novel triphenylethene-functionalized dithienylethenes I (R = H, OMe, CF₃) have been designed and prepared by appending triphenylethene moieties at one end of dithienylethene unit. They display good photochromic behaviors with excellent fatigue resistance upon irradiation with UV or visible light in THF (THF) solution Before irradiation with UV light, they exhibit aggregation induced emission (AIE) properties and luminescence behaviors in the solid state. Moreover, upon alternating irradiation with UV/visible light, they display effective fluorescent switching behaviors in the aggregated state and the solid state. The exptl. results have been validated by the d. functional theory (DFT) calculations Thus, they can be utilized as novel fluorescence switches integrated in smart, solid-state optoelectronic materials and photopharmacol.

Frontiers in Chemistry (Lausanne, Switzerland) 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 C6H8N2O2, 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

Shi, Hai-Bo published the artcileSynthesis of 5-acetyl-2-arylamino-4-methylthiazole thiosemicarbazones under microwave irradiation and their in vitro anticancer activity, Synthetic Route of 3696-23-9, the publication is Journal of Chemical Research (2016), 40(2), 67-72, database is CAplus.

A series of 21 new tri- and tetra-cyclic thiosemicarbazone derivatives were prepared via the condensation of morpholine, piperazine or N-(4-methoxyphenyl)piperazine with seven Me hydrazine-carbodithioate derivatives of 5-acetyl-2-arylamino-4-methylthiazoles under microwave irradiation All compounds were tested for their cytotoxic activity in-vitro against human gastric, lung and breast cancer cell lines. The results showed that some of the compounds displayed moderate anticancer activity. The most potent compound, a morpholino-substituted analog, exhibited significant activity against human breast cancer cells.

Journal of Chemical Research published new progress about 3696-23-9. 3696-23-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Thiourea,Amine,Benzene,Amide, name is 1-(4-Chlorophenyl)thiourea, and the molecular formula is C12H13F2N3O4S, Synthetic Route of 3696-23-9.

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