Tag: M.W=150-200

Low, Chia Hui; Mohamad, Habsah; Mustafa, Siti Fatimah Zaharah; Mohd, Khamsah Suryati; Mat Nafi, Nor Elani published the artcile< Synthesis and computational study of 4-hydroxylbenzamide analogs as potential anti-breast cancer agent>, Computed Properties of 17082-09-6, the main research area is hydroxybenzamide preparation antitumor SAR mol docking; HDAC JAK2 EGFR inhibition.

In this work, several 4-hydroxybenzamide analogs, I [R = H, (E)-3-phenylprop-2-enoyl, 1,3-benzodioxole-5-carbonyl, etc.; R1 = H, 2-tert-butoxy-1,1-dimethyl-2-oxo-Et, 2-ethoxy-1,1-dimethyl-2-oxo-Et, etc.] , II [R2 = Me, tBu], III and IV coupled with 1,3-benzodioxole, α,β-unsaturated carbonyl and tert-Bu ester bases small mols. were synthesized via imidation, EDC coupling, and etherification reactions, then bio-active 4-hydroxybenzamide analogs, I,II, III and IV were studied using quantum calculations and mol. docking. The Frontier MOs and energy gap values were calculated using Time-Dependent D. Functional Theory (TD-DFT). Docking results showed I [R = (E)-3-phenylprop-2-enoyl, R1 = H] and IV as potent JAK2 inhibitors. I [R = 1,3-benzodioxole-5-carbonyl, 2-(1,3-benzodioxol-5-yl)ethyl, R1 = H] and I [R = H, R1 = (2-tert-butoxy-1,1-dimethyl-2-oxo-ethyl)] may be good HDAC II inhibitors. III may act as a potent EGFR inhibitor. These were followed by cytotoxic evaluation of 4-hydroxybenzamide analogs, I, II , III and IV on human estrogen receptor breast cancer cells (MCF-7), metastatic breast adenocarcinome cancer cells (MDA-MB-231) and fibroblast cells (NIH/3T3) resp. Mol. IV was found to have insignificant apoptosis against MCF 7 cell line and MDM-MD-231 cell lines with IC50 value 5.0μg/mL and 5.0μg/mL resp.

Arabian Journal of Chemistry published new progress about Antitumor agents. 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, Computed Properties of 17082-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Regnier, Vianney; Romero, Erik A.; Molton, Florian; Jazzar, Rodolphe; Bertrand, Guy; Martin, David published the artcile< What Are the Radical Intermediates in Oxidative N-Heterocyclic Carbene Organocatalysis?>, Recommanded Product: (E)-Cinnamoyl chloride, the main research area is oxidative azaheterocyclic carbene organocatalysis radical intermediate.

The oxidation of the Breslow intermediate resulting from the addition of an N-heterocyclic carbene (NHC) to benzaldehyde triggers a fast deprotonation, followed by a second electron transfer, directly affording the corresponding acylium at E > -0.8 V (vs. Fc/Fc+). Similarly, the oxidation of the cinnamaldehyde analog occurs at an even higher potential and is not a reversible electrochem. process. As a whole, and contrary to previous beliefs, it is demonstrated that Breslow intermediates, which are the key intermediates in NHC-catalyzed transformations of aldehydes, cannot undergo a single electron transfer (SET) with mild oxidants (E < -1.0 V). Moreover, the corresponding enol radical cations are ruled out as relevant intermediates. It is proposed that oxidative NHC-catalyzed radical transformations of enals proceed either through SET from the corresponding electron-rich enolate or through coupled electron-proton transfer from the enol, in any case generating neutral capto-dative radicals. Relevant electrochem. surrogates of these paramagnetic species have been isolated. Journal of the American Chemical Society published new progress about Crystal structure. 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, Recommanded Product: (E)-Cinnamoyl chloride.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Nagatani, Takeshi; Sasaki, Takaaki; Saito, Kyoichi published the artcile< Preparation of crosslinked cation-exchange membranes by sulfonation of polymer chains cografted with St and CMS>, Application In Synthesis of 1592-20-7, the main research area is chloromethyl styrene polymer chain cation exchange membrane sulfonation.

Cation-exchange membranes with improved electrodialysis and mech. strength for manufacturing edible salt were prepared by electron-beam-induced graft polymerization First, styrene (St) and chloromethyl styrene (CMS) were co-grafted onto an EB-irradiated ultra-high mol. weight polyethylene film. Second, through a reaction with chlorosulfonic acid, a sulfonic acid group was introduced while incorporating the crosslinked structure into the cograft chains. The cation-exchange membranes that were prepared with various CMS contents in a vinyl monomer solution were stored in 0.5 mol/L NaCl at 25°C to evaluate the time course of the water content, membrane resistance, and tensile strength. Over a 150-day storage period, the water content increased and the membrane resistance and tensile strength decreased. This tendency can be explained by the fact that the cograft chains are crosslinked to depress water inclusion in the sulfonic acid group containing a polymer network. The CMS content in the vinyl monomer solution governed the degree of crosslinking of the polymer network of the membrane, affecting the performance of the electrodialysis. The cation-exchange membrane, prepared at a CMS content of 17°C, and a degree of cografting of 74°C, exhibited 20°C higher chloride ion concentration of brine for the electrodialysis compared with a com. available cation-exchange membrane.

Salt and Seawater Science & Technology published new progress about Cation exchange membranes. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Application In Synthesis of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Hayashi, Mosuke; Furusawa, Ikuzo published the artcile< Preparation of 4-chlorophthalic acid. II>, Product Details of C8H3ClO3, the main research area is .

4-Aminophthalic acid diazotized and treated with CuCl solution gives 4-chlorophthalic acid, m. 149-9.5° (anhydride, m. 97°).

Kogyo Kagaku Zasshi published new progress about 118-45-6. 118-45-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H3ClO3, Product Details of C8H3ClO3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chou, Teh-Chang; Cheng, Ju-Fang; Gholap, Atul R.; Huang, Jim Jing-Kai; Chen, Jyun-Chang; Huang, Jing-Kai; Tseng, Jui-Chang published the artcile< Aromatization-driven Grob-fragmentation approach toward polyazaacenes. Synthesis and amination of multi-functionalized diazapentacenes>, Synthetic Route of 27841-33-4, the main research area is dichloro dimethoxy tetrahydro methanoanthracene preparation Grob fragmentation; methoxycarbonyl chloro diazapentacene regioselective preparation amine amination; amino methoxycarbonyl diazapentacene preparation.

A general approach toward the synthesis of multi-functionalized diazapentacene derivatives I [R1 = R4 = H, nitro; R2 = R3 = H, MeO, nitro; R2R3 = 15-crown-5-ether, 18-crown-6-ether] using 1,2,3,4-tetrachloro-5,5-dimethoxycyclopentadiene (TDCp), a substituted benzene-1,2-diamine (ADA), and a naphthalene-1,4-dione (BQ) as the building units, was described. The synthesis basically entails three operations: (i) oxidation of the dichloroetheno-bridge in the Diels-Alder cycloadduct of TDCp and 1,4-naphthaquinone, (ii) condensation of the 1,2-diketone thus generated with an ADA to give quinoxaline-fused polycyclic compounds, followed by (iii) an one-pot, three-reaction process keyed upon the base- or acid-catalyzed aromatization-driven Grob-type fragmentation to produce compounds I. The compound I [R1 = R2 = R3 = R4 = H] underwent the nucleophilic aromatic ipso-amination with primary and secondary amines to afford the amino-substituted derivatives II [R5 = n-Bu, cyclohexyl, Ph, etc.], which tend to self-assemble in solid state driven by the cofacial π-stacking interactions, demonstrated by the crystal packing structures of compounds II [R5 = n-Bu, N1-(anthracen-9-ylmethyl)propane-1,3-diamino].

Tetrahedron published new progress about Amination. 27841-33-4 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H12N2O2, Synthetic Route of 27841-33-4.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Tykvart, Jan; Schimer, Jiri; Barinkova, Jitka; Pachl, Petr; Postova-Slavetinska, Lenka; Majer, Pavel; Konvalinka, Jan; Sacha, Pavel published the artcile< Rational design of urea-based glutamate carboxypeptidase II (GCPII) inhibitors as versatile tools for specific drug targeting and delivery>, SDS of cas: 22717-55-1, the main research area is glutamate carboxypeptidase II inhibitor prostate cancer targeting; GCPII; PSMA; Specific drug targeting; Structure-aided drug design.

Glutamate carboxypeptidase II (GCPII), also known as prostate specific membrane antigen (PSMA), is an established prostate cancer marker and is considered a promising target for specific anticancer drug delivery. Low-mol.-weight inhibitors of GCPII are advantageous specific ligands for this purpose. However, they must be modified with a linker to enable connection of the ligand with an imaging mol., anticancer drug, and/or nanocarrier. Here, we describe a structure-activity relationship (SAR) study of GCPII inhibitors with linkers suitable for imaging and drug delivery. Structure-assisted inhibitor design and targeting of a specific GCPII exosite resulted in a 7-fold improvement in Ki value compared to the parent structure. X-ray structural anal. of the inhibitor series led to the identification of several inhibitor binding modes. We also optimized the length of the inhibitor linker for effective attachment to a biotin-binding mol. and showed that the optimized inhibitor could be used to target nanoparticles to cells expressing GCPII.

Bioorganic & Medicinal Chemistry published new progress about Antitumor agents. 22717-55-1 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, SDS of cas: 22717-55-1.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chen, Honghao; Ouyang, Lufeng; Liu, Jidan; Shi, Wen-Jing; Chen, Guoshu; Zheng, Liyao published the artcile< Synthesis of Multisubstituted 1-Naphthoic Acids via Ru-Catalyzed C-H Activation and Double-Alkyne Annulation under Air>, Recommanded Product: 5-Chloroisobenzofuran-1,3-dione, the main research area is phthalic acid alkyne annulation ruthenium; naphthoic acid preparation; ruthenium annulation catalyst.

An efficient [2 + 2 + 2] benzannulation of phthalic acids/anhydrides with two alkynes was developed for synthesis of multisubstituted 1-naphthoic acids via Ru-catalyzed C-H activation. The reaction preceded well using atm. oxygen as the sole oxidant with high atom/step economies. Facilitated by the free carboxyl group, the products can be easily converted to diverse polycyclic mols.

Journal of Organic Chemistry published new progress about Air. 118-45-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H3ClO3, Recommanded Product: 5-Chloroisobenzofuran-1,3-dione.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Huang, Lin; Xu, Jun; He, Lei; Liang, Chenfeng; Ouyang, Yani; Yu, Yongping; Li, Wanmei; Zhang, Pengfei published the artcile< Rapid alkenylation of quinoxalin-2(1H)-ones enabled by the sequential Mannich-type reaction and solar photocatalysis>, Related Products of 55687-19-9, the main research area is dihydroquinoxalinone derivative green preparation diastereoselective; quinoxalinone ketone alkenylation Mannich solar photocatalysis.

A rapid alkenylation of quinoxalin-2(1H)-ones with ketones enabled by a combination of Mannich-type reaction and solar photocatalysis to afford 3,4-dihydroquinoxalin-2(1H)-one derivatives I [R1 = 5-Me, 5-F, 7-tBu, etc.; R2 = Me, Et, Bn, etc.; R3 = Me, Et, 2-furyl, etc.] in moderate-to-good yields was demonstrated. Control experiments illustrated that the in situ generated 1O2 played a central role in this reaction. This green and efficient strategy provided a practical solution for the synthesis of potentially bioactive compounds I that containing a 3,4-dihydroquinoxalin-2(1H)-one structure.

Chinese Chemical Letters published new progress about Alkenylation. 55687-19-9 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H5ClN2O, Related Products of 55687-19-9.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Zhang, Zhongzheng; Shi, Jialin; Zhu, Tianyang; Zhang, Lina; Wei, Wei published the artcile< Nitrogen-doped mesoporous carbon single crystal-based Ag nanoparticles for boosting mild CO2 conversion with terminal alkynes>, Category: chlorides-buliding-blocks, the main research area is nitrogen carbon silver nanoparticle diffusion porosity particle size; Ag nanoparticles; CO(2) conversion; Mild condition; N-doped mesoporous carbon; Terminal alkynes.

Fabrication of efficient heterogeneous catalysts with high turnover frequency (TOF) is intriguing for rapid and scalable CO2 conversion under mild conditions, but it still faces some challenges due to use of some bulky and irregular supports causing inaccessible inner pores and insufficient utilization of active sites. Herein, using a unique nitrogen-doped mesoporous single-crystal carbon (named IRFC) as a host for loading Ag nanoparticles for the first time, a series of Ag/IRFC catalysts with high TOF (8.7-22.3 h-1) were facilely prepared by a novel “”impregnation and in-situ reduction”” strategy. The neat morphol. and high porosity of IRFC with abundant N species, providing homogeneous surface, adequate space and anchoring sites for Ag immobilization, greatly facilitated the formation of highly-distributed ultrasmall Ag nanoparticles (2.3 nm). Meanwhile, smooth and short diffusion pathways were inherited from the ordered mesopores and small particle sizes of IRFC. Owing to these unparalleled structural features, the Ag/IRFC catalysts exhibited excellent catalytic activity, stability, and generality for mild CO2 conversion even under diluted conditions. This work not only presents a novel catalyst for mild CO2 conversion, but also brings some inspirations to designing highly efficient catalysts using well-shaped supporting nanomaterials for direct utilization of low-concentration CO2, such as flue gas.

Journal of Colloid and Interface Science published new progress about Binding energy. 3240-10-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H5ClO2, Category: chlorides-buliding-blocks.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Oberdisse, Julian; Gonzalez-Burgos, Marina; Mendia, Ander; Arbe, Arantxa; Moreno, Angel J.; Pomposo, Jose A.; Radulescu, Aurel; Colmenero, Juan published the artcile< Effect of Molecular Crowding on Conformation and Interactions of Single-Chain Nanoparticles>, Synthetic Route of 1592-20-7, the main research area is single chain nanoparticle mol crowding conformation interaction.

The conformation of single-chain nanoparticles (SCNPs) in the presence of linear polystyrene crowding mols. has been studied by small-angle neutron scattering under contrast-matching of the crowders. A model describing the scattering of aggregating polydisperse SCNPs has been developed, resulting in the determination of the potentially squeezed size of the individual SCNPs within aggregates, their local chain statistics, and the average aggregation number, as a function of crowding. Two different crowders, of low and high mol. weights, are shown to have a different effect: while long chains tend to impede their aggregation above their overlap concentration, short ones are found to mediate depletion interactions leading to aggregation. Self-imposed crowding within the aggregates has a similar impact on chain conformation independently of the crowding of the surrounding medium. Our results are compared to recent simulations and shall contribute to the microscopic understanding of the phase behavior of soft intrinsically disordered nano-objects and in particular the effect of crowding on biomacromols.

Macromolecules (Washington, DC, United States) published new progress about Aggregation. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Synthetic Route of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics