Month: December 2022

Kong, Xianqiang published the artcileManganese-Catalyzed ortho-C-H Amidation of Weakly Coordinating Aromatic Ketones, Product Details of C10H15ClO3S, the publication is Organic Letters (2018), 20(15), 4495-4498, database is CAplus and MEDLINE.

An efficient manganese-catalyzed ortho-C-H amidation of weakly coordinating aromatic ketones using the readily available sulfonyl azide as the amination reagent is developed. The key step is the ketone directed aromatic metalation using the in situ generated reactive Mn intermediate, MnMe(CO)₅. This method offers excellent chem. yields, high regioselectivities, and good functional group tolerance.

Organic Letters published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Product Details of C10H15ClO3S.

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

Gao, Donghong Amy published the artcileSAR studies of non-zinc-chelating MMP-13 inhibitors: Improving selectivity and metabolic stability, Quality Control of 6313-54-8, the publication is Bioorganic & Medicinal Chemistry Letters (2010), 20(17), 5039-5043, database is CAplus and MEDLINE.

SAR studies to improve the selectivity and metabolic stability of a class of recently discovered MMP-13 inhibitors are reported. Improved selectivity was achieved by modifying interactions with the S1′ pocket. Metabolic stability was improved through reduction of inhibitor lipophilicity. This translated into lower in vivo clearance for the preferred compound

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, Quality Control of 6313-54-8.

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

Wang, Zhen published the artcileChiral derivatives of covalent organic framework TpBD (NH₂)₂ used as stationary phases in gas chromatography, Product Details of C10H15ClO3S, the publication is Chirality (2022), 34(3), 462-472, database is CAplus and MEDLINE.

Chiral covalent organic framework materials have many excellent properties, which have received much attention in the field of separation Synthesized the covalent organic framework COF-TpBD (NH₂)₂ modified, resp., by L-valine trifluoroacetyl derivative, L-hydroxyproline, and (1S)-(+)-10-camphorsulfonyl chloride, three capillary columns of chiral covalent organic framework materials were obtained for gas chromatog. Those columns are able to sep. some chiral compounds, positional isomers, n-alkanes, n-alcs., aromatic hydrocarbon mixture, and Grob’s reagents. They are complementary to other chiral capillary columns and are possible for potential applications.

Chirality published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C4H4N2O2, Product Details of C10H15ClO3S.

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

Li, Xiao-Juan published the artcileConvenient and efficient decarboxylative aldol reaction of malonic acid half esters with trifluoromethyl ketones, Formula: C8H4ClF3O, the publication is Tetrahedron Letters (2012), 53(16), 2117-2120, database is CAplus.

A convenient and efficient decarboxylative ketone aldol condensation of malonic acid half esters was reported. In the presence of catalytic amount of triethylamine, a series of aromatic and alkyl trifluoromethyl ketones were transformed into the desired adducts in 61-99% yields. In a preliminary experiment, a moderate stereoselectivity was obtained. Direct reduction of the aldol product with LiAlH₄ afforded trifluoromethylated 1,3-diol.

Tetrahedron Letters 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, Formula: C8H4ClF3O.

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

Yan, Liying published the artcileFluorescent molecular photoswitch based on basket-shaped porphyrins, SDS of cas: 219537-97-0, the publication is Tetrahedron Letters (2020), 61(29), 152104, database is CAplus.

Here we present two novel basket-shaped porphyrins bridged by photochromic diarylethene derivatives, which show significant photoswitchable fluorescent properties. Their synthesis, structures, photochromism and fluorescence characteristics were reported in detail. They are desirable for reversible light-driven fluorescent mol. switches.

Tetrahedron Letters 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 C7H9BN2O3, SDS of cas: 219537-97-0.

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

Li, Wenjie published the artcileTriptycene-based porous polymers regulated by diarylethenes, Related Products of chlorides-buliding-blocks, the publication is Dyes and Pigments (2018), 72-76, database is CAplus.

Linear and star triptycene-based porous polymers regulated by diarylethenes were constructed via Pd (0)-catalyzed Suzuki coupling reaction, resp. Both triptycene-based porous polymers performed reversible photochromism in solid state but exhibited distinctive solvent-dependent photochromism in solution Their surface area and porous properties were further analyzed by nitrogen sorption isotherms. Results showed that the sp. surface areas and total pore volumes of the two polymers can be reversibly tuned by adjusting the open- and the closed-ring of diarylethene upon irradiating with UV and visible light. These distinctive properties have potential applications in the photo-switched gas adsorption and the probe of chloride solvents.

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, Related Products of chlorides-buliding-blocks.

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

Shi, Lou published the artcileRegio- and Enantioselective Ni-Catalyzed Formal Hydroalkylation, Hydrobenzylation, and Hydropropargylation of Acrylamides to α-Tertiary Amides, Product Details of C3H3Br2ClO, the publication is Angewandte Chemie, International Edition (2021), 60(3), 1599-1604, database is CAplus and MEDLINE.

The development of enantioselective alkyl-alkyl cross-couplings with coinstantaneous formation of a stereogenic center without the use of sensitive organometallic species is attractive yet challenging. Herein, we report the intermol. regio- and enantioselective formal hydrofunctionalizations of acrylamides, forging a stereogenic center α-position to the newly formed C_sp3-C_sp3 bond for the first time. The use of a newly developed chiral ligand enables the electronically-reversed formal hydrofunctionalizations, including hydroalkylation, hydrobenzylation, and hydropropargylation, offering an efficient way to access diverse enantioenriched amides with a tertiary α-stereogenic carbon center which is facile to racemize. This operationally simple protocol allows for the anti-Markovnikov enantioselective hydroalkylation, and unprecedented hydrobenzylation, hydropropargylation under mild conditions with excellent functional group compatibility, delivering a wide range of amides with excellent levels of enantioselectivity.

Angewandte Chemie, International Edition published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C15H14O3, Product Details of C3H3Br2ClO.

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

Zhu, Jing published the artcileLigand-based substituent-anchoring design of selective receptor-interacting protein kinase 1 necroptosis inhibitors for ulcerative colitis therapy, Recommanded Product: 3-Chloro-4-fluoronitrobenzene, the publication is Acta Pharmaceutica Sinica B (2021), 11(10), 3193-3205, database is CAplus and MEDLINE.

Receptor-interacting protein (RIP) kinase 1 is involved in immune-mediated inflammatory diseases including ulcerative colitis (UC) by regulating necroptosis and inflammation. Our group previously identified TAK-632 (5) as an effective necroptosis inhibitor by dual-targeting RIP1 and RIP3. In this study, using ligand-based substituent-anchoring design strategy, we focused on the benzothiazole ring to obtain a series of TAK-632 analogs showing significantly improving on the anti-necroptosis activity and RIP1 selectivity over RIP3. Among them, a conformational constrained fluorine-substituted derivative (25) exhibited 333-fold selectivity for RIP1 (K_d = 15 nmol/L) than RIP3 (K_d > 5000 nmol/L). This compound showed highly potent activity against cell necroptosis (EC₅₀ = 8 nmol/L) and systemic inflammatory response syndrome (SIRS) induced by TNF-α in vivo. Especially, it was able to exhibit remarkable anti-inflammatory treatment efficacy in a DSS-induced mouse model of UC. Taken together, the highly potent, selective, orally active anti-necroptosis inhibitor represents promising candidate for clin. treatment of UC.

Acta Pharmaceutica Sinica B 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 C9H22OSi, Recommanded Product: 3-Chloro-4-fluoronitrobenzene.

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

Feng, Ke published the artcileModular Design of Poly(norbornenes) for Organelle-Specific Imaging in Tumor Cells, COA of Formula: C19H14Cl2, the publication is Biomacromolecules (2016), 17(2), 538-545, database is CAplus and MEDLINE.

Through modular ROMP (ring-opening metathesis polymerization) directly from monomeric norbornenes of bioactive peptides, rhodamine B chromophore, and PEG solubilizer, we designed and synthesized a series of water-soluble poly(norbornenes) with organelle-specific imaging capability in tumor cells. For the selection of F_xrF_xK, TAT, and SV40 peptide sequences, these fluorescence probes exhibited different targeting specificity toward mitochondria, lysosome, and nucleolus, resp., based on the same poly(norbornene) backbonds. More importantly, the ROMP strategy enables selective combination from various monomers and allows programmable biofunctionalization via peptide sequence permutations, which would greatly extend the biomedical applications such as imaging, diagnosis, and therapy for these synthetic polymers.

Biomacromolecules published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, COA of Formula: C19H14Cl2.

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

Liu, Chenguang published the artcileAutomated synthesis of prexasertib and derivatives enabled by continuous-flow solid-phase synthesis, Recommanded Product: 2-Chlorotrityl chloride, the publication is Nature Chemistry (2021), 13(5), 451-457, database is CAplus and MEDLINE.

Recent advances in end-to-end continuous-flow synthesis are rapidly expanding the capabilities of automated customized syntheses of small-mol. pharmacophores, resulting in considerable industrial and societal impacts; however, many hurdles persist that limit the number of sequential steps that can be achieved in such systems, including solvent and reagent incompatibility between individual steps, cumulated byproduct formation, risk of clogging and mismatch of timescales between steps in a processing chain. To address these limitations, herein a strategy that merges solid-phase synthesis and continuous-flow operation, enabling push-button automated multistep syntheses of active pharmaceutical ingredients, is reported. The application of this methodol. is demonstrated with a six-step synthesis of prexasertib in 65% isolated yield after 32 h of continuous execution. As there are no interactions between individual synthetic steps in the sequence, the established chem. recipe file was directly adopted or slightly modified for the synthesis of twenty-three prexasertib derivatives, enabling both automated early and late-stage diversification.

Nature Chemistry published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, Recommanded Product: 2-Chlorotrityl chloride.

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