Month: December 2022

Cheng, Feixiong published the artcileInsights into binding modes of adenosine A_2B antagonists with ligand-based and receptor-based methods, Computed Properties of 264622-53-9, the publication is European Journal of Medicinal Chemistry (2010), 45(8), 3459-3471, database is CAplus and MEDLINE.

Ligand-based and receptor-based methods were used to investigate the binding modes of human adenosine A_2B antagonists. At first, pharmacophore models were developed based on 140 diverse A_2B antagonists from literature. Meanwhile, the structural model of A_2B receptor was built up based on the crystal structure of human A_2A receptor and validated by Induced Fit docking, Glide-XP and Glide-SP docking. Two models matched each other very well and some important implications were hence obtained. The residues of Phe173 and Glu174 in the second extracellular loop and Asn254 were crucial to the antagonists binding to form π-π stacking and hydrogen-bonding interactions. These findings would be very helpful for the discovery of novel and potent A_2B antagonists.

European Journal of Medicinal Chemistry published new progress about 264622-53-9. 264622-53-9 belongs to amides-buliding-blocks, auxiliary class GPCR/G Protein,Adenosine Receptor, name is N-(4-Acetylphenyl)-2-(4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)phenoxy)acetamide, and the molecular formula is C27H29N5O5, Computed Properties of 264622-53-9.

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

Lei, Peng published the artcileDesign, synthesis and fungicidal activity of N-substituted benzoyl-1,2,3,4-tetrahydroquinolyl-1-carboxamide, Product Details of C7H5Cl2NO, the publication is Bioorganic & Medicinal Chemistry Letters (2016), 26(10), 2544-2546, database is CAplus and MEDLINE.

To find a new lead compound with high biol. activity, a series of N-substituted benzoyl-1,2,3,4-tetrahydroquinolyl-1-carboxamide were designed using linking active substructures method. The target compounds were synthesized from substituted benzoic acid by four steps and their structures were confirmed by ¹H NMR, IR spectrum and elemental anal. The in vitro bioassay results indicated that some target compounds exhibited excellent fungicidal activities, and the position of the substituents played an important role in fungicidal activities. Especially, 4-t-Bu-substituted compound , exhibited better fungicidal activities than the com. fungicide flutolanil against two tested fungi Valsa mali and Sclerotinia sclerotiorum, with EC₅₀ values of 3.44 and 2.63 mg/L, resp. And it also displayed good in vivo fungicidal activity against S. sclerotiorum with the EC₅₀ value of 29.52 mg/L.

Bioorganic & Medicinal Chemistry Letters published new progress about 2447-79-2. 2447-79-2 belongs to amides-buliding-blocks, auxiliary class Chloride,Amine,Benzene,Amide, name is 2,4-Dichlorobenzamide, and the molecular formula is C7H5Cl2NO, Product Details of C7H5Cl2NO.

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

Gan, Guohong published the artcileSCASP: A Simple and Robust SDS-Aided Sample Preparation Method for Proteomic Research, Computed Properties of 79-07-2, the publication is Molecular & Cellular Proteomics (2021), 100051, database is CAplus and MEDLINE.

SDS is widely used in sample preparation for proteomic research. However, SDS is incompatible with LC and electrospray ionization. SDS depletion is therefore required ahead of LC-MS anal. Most of current SDS removal strategies are time consuming, laborious, and have low reproducibility. Here, we describe a method, SDS-cyclodextrin (CD)-assisted sample preparation, by which CD can bind to SDS and form CD-SDS complexes in solutions, allowing for direct tryptic digestion. We demonstrate that SDS-CD-assisted sample preparation is a simple, fast, and robust SDS-based sample preparation method for proteomics application.

Molecular & Cellular Proteomics published new progress about 79-07-2. 79-07-2 belongs to amides-buliding-blocks, auxiliary class Chloride,Amine,Aliphatic hydrocarbon chain,Amide,Inhibitor, name is 2-Chloroacetamide, and the molecular formula is C2H4ClNO, Computed Properties of 79-07-2.

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

Zhao, Jin-Wu published the artcileGreen synthesis of 1,2,4-thiadizoles from thioamides in water using molecular oxygen as an oxidant, Related Products of amides-buliding-blocks, the publication is Chinese Chemical Letters (2014), 25(11), 1499-1502, database is CAplus.

The authors present here an efficient green process for the synthesis of 1,2,4-thiadiazoles via iodine-catalyzed, oxidative dimerization of thioamides in water using mol. oxygen as a terminal oxidant. Under the optimized reaction conditions, aryl thioamides produced 3,5-diaryl-1,2,4-thiadiazoles in good to excellent yields. Alkyl thioamides and substituted thioureas could also provide corresponding 1,2,4-thiadiazole products.

Chinese Chemical Letters published new progress about 14294-10-1. 14294-10-1 belongs to amides-buliding-blocks, auxiliary class Morpholine,Thiourea,Amine,Amide, name is Morpholine-4-carbothioamide, and the molecular formula is C8H17Br, Related Products of amides-buliding-blocks.

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

Zhao, Jinwu published the artcilePotassium iodide and ammonium nitrate catalyzed aerobic oxidative cyclization of ketones with thioureas in ionic liquid: an access to 2-aminothiazoles, SDS of cas: 14294-10-1, the publication is Tetrahedron (2015), 71(4), 539-543, database is CAplus.

An efficient procedure for the synthesis of 2-aminothiazoles via KI/NH₄NO₃-catalyzed oxidative cyclization of ketones and thioureas using mol. oxygen as a green oxidant is reported. Different ketones and thioureas went through the transformation and gave corresponding 2-aminothiazole heterocycles in satisfactory yields. E.g., in presence of KI/NH₄NO₃, H₂SO₄, and mol. oxygen in [Bmim]OTf/H₂O (4:1), oxidative cyclization of PhCOMe and H₂NCSNH₂ gave 95% 2-aminothiazole derivative (I).

Tetrahedron published new progress about 14294-10-1. 14294-10-1 belongs to amides-buliding-blocks, auxiliary class Morpholine,Thiourea,Amine,Amide, name is Morpholine-4-carbothioamide, and the molecular formula is C10H14N2Na4O9, SDS of cas: 14294-10-1.

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

Cheng, Chuanjie published the artcileA highly efficient Pd-C catalytic hydrogenation of pyridine nucleus under mild conditions, Recommanded Product: N,N-Diethylisonicotinamide, the publication is Tetrahedron (2009), 65(41), 8538-8541, database is CAplus.

A synergistic Pd-C catalytic hydrogenation of 4-pyridinecarboxamides straightforwardly to 4-piperidinecarboxamide hydrochlorides was developed in the presence of ClCH₂CHCl₂. It provided a novel strategy for highly efficient hydrogenation of pyridine nuclear by using low-cost Pd-C catalyst under mild conditions.

Tetrahedron published new progress about 530-40-5. 530-40-5 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is N,N-Diethylisonicotinamide, and the molecular formula is C10H14N2O, Recommanded Product: N,N-Diethylisonicotinamide.

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

Lai, Huifang published the artcileCopper-promoted direct amidation of isoindolinone scaffolds by sodium persulfate, Formula: C2H4ClNO, the publication is Organic & Biomolecular Chemistry (2021), 19(35), 7621-7626, database is CAplus and MEDLINE.

Isoindolinones are ubiquitous structural motifs in natural products and pharmaceuticals. Establishing an efficient method for structural modification of isoindolinones could significantly facilitate new drug development. Herein, authors describe copper-promoted direct amidation of isoindolinone scaffolds mediated by sodium persulfate. The method exhibits mild reaction conditions and high site-selectivity, and enables the structural modification of the drug indobufen ester with various amides with yields of 49 to 98%. It is also gram-scalable. Addnl., the reaction mechanism appears to involve a radical and a carbocationic pathway.

Organic & Biomolecular Chemistry published new progress about 79-07-2. 79-07-2 belongs to amides-buliding-blocks, auxiliary class Chloride,Amine,Aliphatic hydrocarbon chain,Amide,Inhibitor, name is 2-Chloroacetamide, and the molecular formula is C2H4ClNO, Formula: C2H4ClNO.

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

Li, Tingting published the artcileMechanically Strong Heterogeneous Catalysts via Immobilization of Powderous Catalysts to Porous Plastic Tablets, HPLC of Formula: 2418-95-3, the publication is Chinese Journal of Chemistry (2021), 39(10), 2673-2678, database is CAplus.

We describe a practical and general protocol for immobilization of heterogeneous catalysts to mech. robust porous ultra-high mol. weight polyethylene tablets using inter-facial Lifshitz-van der Waals Interactions. Diverse types of powderous catalysts, including Cu, Pd/C, Pd/Al₂O₃, Pt/C, and Rh/C have been immobilized successfully. The immobilized catalysts are mechanistically robust towards stirring in solutions, and they worked well in diverse synthetic reactions. The immobilized catalyst tablets are easy to handle and reused. Moreover, the metal leaching of immobilized catalysts was reduced significantly.

Chinese Journal of Chemistry published new progress about 2418-95-3. 2418-95-3 belongs to amides-buliding-blocks, auxiliary class Chiral,Carboxylic acid,Amine,Aliphatic hydrocarbon chain,Ester,Amino acide derivatives, name is H-Lys(Boc)-OH, and the molecular formula is C11H22N2O4, HPLC of Formula: 2418-95-3.

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

Jiang, Biao-Lin published the artcileCobalt(II)/N,N’,N”-Trihydroxyisocyanuric Acid Catalyzed Aerobic Oxidative Esterification and Amidation of Aldehydes, Formula: C10H14N2O, the publication is Asian Journal of Organic Chemistry (2018), 7(5), 977-983, database is CAplus.

A protocol for a Co^II/N,N’,N”-trihydroxyisocyanuric acid (THICA)-catalyzed aerobic oxidative esterification and amidation of aldehydes has been developed. Preliminary insight into the mechanism indicates that such an oxidative C-O/N cross-coupling reaction proceeds by masking the aldehyde in a nucleophilic addition reaction with an alkoxy/amino source, thereby keeping the highly reactive formyl group from undesired oxidation This protocol for the oxidative esterification and amidation of aldehydes proceeds through two different pathways that are characterized by the intrinsic nucleophilicity of the alkanol and amine substrates. The former occurs in the presence of TsOH as a cocatalyst and orthoformates as the alkoxy sources, instead of alkanols, to efficiently afford the transient acetals. In contrast, the coupling of the more nucleophilic amines with aldehydes renders a readily accessible cross-coupling reaction that occurs without any cocatalyst but is limited by the potential inhibition of THICA upon nucleophilic substitution by an amine. Consequently, only sterically hindered amines were tolerated in this catalytic system, whereas further condensation occurred in the presence of primary amines to lead to imines.

Asian Journal of Organic Chemistry published new progress about 530-40-5. 530-40-5 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is N,N-Diethylisonicotinamide, and the molecular formula is C10H14N2O, Formula: C10H14N2O.

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

Li, Dan published the artcileSLAMF3 and SLAMF4 are immune checkpoints that constrain macrophage phagocytosis of hematopoietic tumors, HPLC of Formula: 321673-30-7, the publication is Science Immunology (2022), 7(67), eabj5501, database is CAplus and MEDLINE.

The interaction of SIRPα with CD47 represents a major mechanism for preventing macrophage phagocytosis. However, CD47-independent mechanisms are poorly defined. Here, we report a critical role of SLAM family receptors (SFRs), ubiquitously expressed on hematopoietic cells and forming homotypic interactions, in constraining macrophage phagocytosis. We found that SFR deficiency triggered macrophage phagocytosis of hematopoietic cells, leading to severe rejection of donor hematopoietic graft in recipient mice. Specific SFR members, mainly SLAMF3 and SLAMF4, were identified as “don’t eat me” receptors on macrophages. These receptors inhibited “eat me” signals, such as LRP1-mediated activation of mTOR and Syk, through SH2 domain-containing phosphatases. SFRs combined with, but were independent of, CD47 to mitigate macrophage phagocytosis, and the combined deletion of SFRs and CD47 resulted in hematopoietic cytopenia in mice. This SFR-mediated tolerance was compromised in patients with hemophagocytic lymphohistiocytosis, a syndrome characterized by inappropriate phagocytosis toward hematopoietic cells. Loss of SFRs potently elicited macrophage rejection of hematopoietic tumors. Deletion of SFRs also significantly enhanced the phagocytosis of CD19-pos. hematopoietic targets by the macrophages expressing the chimeric CD19 antigen receptor. Therefore, SFR-mediated inhibition of macrophage phagocytosis is critical to hematopoietic homeostasis, and SFRs may represent previously unknown targets for tumor immunotherapy.

Science Immunology published new progress about 321673-30-7. 321673-30-7 belongs to amides-buliding-blocks, auxiliary class Immunology/Inflammation,Scavenger receptor, name is [(2-Hexylcyclopentylidene)amino]thiourea, and the molecular formula is C12H23N3S, HPLC of Formula: 321673-30-7.

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