Category: amides-buliding-blocks

Narasimhamurthy, Kereyagalahally H.; Chandrappa, Siddappa; Sharath Kumar, Kothanahally S.; Harsha, Kachigere B.; Ananda, Hanumappa; Rangappa, Kanchugarakoppal S. published the artcile< Easy access for the synthesis of 2-aryl 2,3-dihydroquinazolin-4(1H)-ones using gem-dibromomethylarenes as synthetic aldehyde equivalent>, Computed Properties of 112253-70-0, the main research area is quinazolinone dihydro aryl preparation.

One step synthesis of 2,3-dihydroquinazolin-4(1H)-ones I (R = H, Cl, OCH3; R1 = H, Br, Cl, OCH3; Ar = 3-ClC6H4, 4-pyridyl, 4-CF3C6H4, etc.) from gem-dibromomethylarenes ArCH(Br)2 using 2-aminobenzamide is described. Gem-dibromomethylarenes are used as aldehyde equivalent for the efficient synthesis of 2,3-dihydroquinazolin-4(1H)-ones, this synthesis takes shorter reaction time with quick isolation and excellent product yield.

RSC Advances published new progress about Amino amides Role: RCT (Reactant), RACT (Reactant or Reagent). 112253-70-0 belongs to class amides-buliding-blocks, and the molecular formula is C7H7BrN2O, Computed Properties of 112253-70-0.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Guillory, Paulette; Kapoor, Ramesh N.; Pannell, Keith H.; Schulte, Louis; McKee, Steven D.; Zhang, Zhi-Yi; Bartsch, Richard C. published the artcile< High yield, one-pot syntheses of symmetrical diaryl-N,N-dialkyl carbamoylmethylphosphine oxide (CMPO) ligands>, Electric Literature of 5326-82-9, the main research area is carbamoylmethylphosphine diaryl preparation; Grignard reagent coupling reaction phosphite chloroacetamide.

A simple 1-pot high yield (∼70%) process is reported for the synthesis, in ∼100 g amounts, of sym. diaryl-N,N-di-i-butylcarbamoylphosphine oxide (CMPO) actinide extractants, aryl = 4-t-butylphenyl, 4-trifluoromethylphenyl, 4-methoxyphenyl and 2,4,6-tri-i-propylphenyl.

Synthetic Communications published new progress about Coupling reaction. 5326-82-9 belongs to class amides-buliding-blocks, and the molecular formula is C10H20ClNO, Electric Literature of 5326-82-9.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Appel, Rolf; Montenarh, Mathias published the artcile< Preparation of silylated amidosulfuric acid derivatives and their reaction with sulfur(IV) halides>, Synthetic Route of 25999-04-6, the main research area is aminosulfamide silylation; sulfamide silylation; sulfur halide sulfamide; diimide sulfur disulfamoyl; sulfinylamine thiobis.

The silylation of aminosulfamides, R2NSO2NH2 with HN(SiMe3)2 gave R2NSO2NHSiMe3 (R = Me, Et; R2N = piperidino, morpholino). Me2NSO2NHSiMe3 was lithiated and silylated with Me3SiCl to give Me3NSO2N(SiMe3)2 (I), also prepared from Me2NSO2NH2 and Me3SiCl. ROSO2NH2 [R = H (II), Me) was silylated with Me3SiCl to give ROSO2NR1SiMe3 (R = Me3Si, R1 = H; R = Me, R1 = Me3Si). II and Me3SiCl also gave Me3SiOSO2N(SiMe3)2 (III), also prepared from (Me3Si)3N and SO3. I and II with SOCl2 gave RSO2NSO [R = Me2N (IV), Me3SiO]. S(NSO)2 was prepared from [(Me3Si)2N]2SO2 and SOCl2, from Me3SiNSO and SO2Cl2, and from Me3SiN:S:NSiMe3 and SOCl2. IV was heated to give Me2NSO2N:S:NSO2NMe2, also prepared from I and SF4. I and SF4 also gave Me2NSO2N:SF2 (V), also prepared from IV and SF4. V and N(SiMe3)3 gave Me2NSO2N:S:NSiMe3.

Chemische Berichte published new progress about 25999-04-6. 25999-04-6 belongs to class amides-buliding-blocks, and the molecular formula is C4H10N2O3S, Synthetic Route of 25999-04-6.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Stanetty, Peter; Krumpak, Barbara; Emerschitz, Thomas; Mereiter, Kurt published the artcile< Synthesis of benzo[d]-1,2-thiazole-1,1-dioxide derivatives via directed lithiation of 2,2-dimethyl-N-(phenylsulfonyl)-propanamides>, COA of Formula: C6H6FNO2S, the main research area is benzothiazole dioxide preparation; dimethylphenylsulfonylpropanamide lithiation cyclization electrophilic addition.

A novel synthesis of 7-substituted benz[d]-1,2-thiazole-1,1-dioxides I (R = H, CHO, CONHCMe3, CO2H, Me, OH, X = H, F, Cl) is presented including directed lithiation of 2,2-dimethyl-N-(phenylsulfonyl)-propanamides 3-XC6H4SO2NHCOCMe3, aryne-mediated cyclization and subsequent quenching of aryllithium intermediates with various electrophiles. A proposed mechanism is rationalized by some control experiments

Tetrahedron published new progress about 1524-40-9. 1524-40-9 belongs to class amides-buliding-blocks, and the molecular formula is C6H6FNO2S, COA of Formula: C6H6FNO2S.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Roberts, Bryan; Liptrot, David; Alcaraz, Lilian published the artcile< Novel Aryl and Heteroaryl Acyl Sulfamide Synthesis via Microwave-Assisted Palladium-Catalyzed Carbonylation>, Recommanded Product: Morpholine-4-sulfonamide, the main research area is aryl heteroaryl halide sulfamide nucleophile palladium carbonylation microwave irradiation; heteroaryl aryl acyl sulfamide preparation; carbonylation catalyst palladium.

A novel, simple synthesis of aryl and heteroaryl acyl sulfamides has been developed via palladium-catalyzed carbonylation of aryl or heteroaryl halides in the presence of sulfamide nucleophiles. A range of reactions illustrating the wide scope of this reaction was carried out under microwave irradiation in a vessel equipped with a gas inlet adapter and proceeded in good to excellent yields.

Organic Letters published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 25999-04-6 belongs to class amides-buliding-blocks, and the molecular formula is C4H10N2O3S, Recommanded Product: Morpholine-4-sulfonamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Yoo, Euna; Schulze, Christopher J.; Stokes, Barbara H.; Onguka, Ouma; Yeo, Tomas; Mok, Sachel; Gnadig, Nina F.; Zhou, Yani; Kurita, Kenji; Foe, Ian T.; Terrell, Stephanie M.; Boucher, Michael J.; Cieplak, Piotr; Kumpornsin, Krittikorn; Lee, Marcus C. S.; Linington, Roger G.; Long, Jonathan Z.; Uhlemann, Anne-Catrin; Weerapana, Eranthie; Fidock, David A.; Bogyo, Matthew published the artcile< The Antimalarial Natural Product Salinipostin A Identifies Essential α/β Serine Hydrolases Involved in Lipid Metabolism in P. falciparum Parasites>, Application In Synthesis of 96829-58-2, the main research area is Plasmodium falciparum; Salinipostin A; activity-based probes; chemical proteomics; lipid metabolism; malaria; natural products; serine hydrolases.

Salinipostin A (Sal A) is a potent antiplasmodial marine natural product with an undefined mechanism of action. Using a Sal A-derived activity-based probe, we identify its targets in the Plasmodium falciparum parasite. All of the identified proteins contain α/β serine hydrolase domains and several are essential for parasite growth. One of the essential targets displays a high degree of homol. to human monoacylglycerol lipase (MAGL) and is able to process lipid esters including a MAGL acylglyceride substrate. This Sal A target is inhibited by the anti-obesity drug Orlistat, which disrupts lipid metabolism Resistance selections yielded parasites that showed only minor reductions in sensitivity and that acquired mutations in a PRELI domain-containing protein linked to drug resistance in Toxoplasma gondii. This inability to evolve efficient resistance mechanisms combined with the non-essentiality of human homologs makes the serine hydrolases identified here promising antimalarial targets.

Cell Chemical Biology published new progress about 96829-58-2. 96829-58-2 belongs to class amides-buliding-blocks, and the molecular formula is C29H53NO5, Application In Synthesis of 96829-58-2.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Guimaraes, Cristiano R. W. published the artcile< A Direct Comparison of the MM-GB/SA Scoring Procedure and Free-Energy Perturbation Calculations Using Carbonic Anhydrase as a Test Case: Strengths and Pitfalls of Each Approach>, Application of C6H6FNO2S, the main research area is MM GB SA scoring free energy perturbation carbonic anhydrase.

MM-GB/SA scoring and free energy perturbation (FEP) calculations have emerged as reliable methodologies to understand structural and energetic relationships to binding. In spite of successful applications to elucidate the structure-activity relationships for few pairs of ligands, the reality is that the performance of FEP calculations has rarely been tested for more than a handful of compounds In this work, a series of 13 benzene sulfonamide inhibitors of carbonic anhydrase with binding free energies determined by isothermal titration calorimetry was selected as a test case. R2 values of 0.70, 0.71, and 0.49 with the experiment were obtained with MM-GB/SA and FEP simulations run with MCPRO+ and Desmond, resp. All methods work well, but the results obtained with Desmond are inferior to MM-GB/SA and MCPRO+. The main contrast between the methods is the level of sampling, ranging from full to restricted flexibility to single conformation for the complexes in Desmond, MCPRO+, and MM-GB/SA, resp. The current and historical results obtained with MM-GB/SA qualify this approach as a more attractive alternative for rank-ordering; it can achieve equivalent or superior predictive accuracy and handle more structurally dissimilar ligands at a fraction of the computational cost of the rigorous free-energy methods. As for the large theor. dynamic range for the binding energies, that seems to be a direct result of the degree of sampling in the simulations since MCPRO+ as well as MM-GB/SA are plagued by this. Van’t Hoff anal. for selected pairs of ligands suggests that the wider scoring spread is not only affected by missing entropic contributions due to restricted sampling but also exaggerated enthalpic separation between the weak and potent compounds caused by diminished shielding of electrostatic interactions, thermal effects, and protein relaxation/strain.

Journal of Chemical Theory and Computation published new progress about Affinity. 1524-40-9 belongs to class amides-buliding-blocks, and the molecular formula is C6H6FNO2S, Application of C6H6FNO2S.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Mishra, Rashmi; Sehring, Ivonne; Cederlund, Maria; Mulaw, Medhanie; Weidinger, Gilbert published the artcile< NF-κB Signaling Negatively Regulates Osteoblast Dedifferentiation during Zebrafish Bone Regeneration>, COA of Formula: C10H13ClN2O3S, the main research area is Danio osteoblast dedifferentiation bone regeneration; NF-kappaB; bglap; bone; dedifferentiation; fin; osteoblast; osteocalcin; plasticity; regeneration; zebrafish.

Dedifferentiation of mature cells is an intriguing cellular process associated with regeneration of several organs. During zebrafish fin regeneration, osteoblasts dedifferentiate to osteogenic progenitors that provide source cells for bone restoration. We performed a high-content in vivo chem. screen for regulators of osteoblast dedifferentiation and fin regenerative growth. NF-κB signaling emerged as a specific regulator of dedifferentiation. The pathway is active in mature osteoblasts and downregulated prior to dedifferentiation. Pathway activation blocked osteoblast dedifferentiation, while NF-κB signaling inhibition enhanced dedifferentiation. Conditional Cre-lox-mediated NF-κB signaling manipulation specifically in osteoblasts showed that the pathway acts cell autonomously to interfere with osteoblast dedifferentiation. NF-κB signaling acts upstream of retinoic acid (RA) signaling, which also needs to be downregulated for dedifferentiation to occur, via suppression of the RA-degrading enzyme cyp26b1. Our findings shed light on the mol. regulation of regenerative cellular plasticity.

Developmental Cell published new progress about Biochemistry. 94-20-2 belongs to class amides-buliding-blocks, and the molecular formula is C10H13ClN2O3S, COA of Formula: C10H13ClN2O3S.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Kikelj, D. published the artcile< Product class 13: quinazolines>, Electric Literature of 112253-70-0, the main research area is review quinazoline preparation; ring closure transformation quinazoline preparation review; aromatization quinazoline preparation review; substituent modification quinazoline preparation review.

A review. Preparation of quinazolines by ring closure and ring transformation reactions as well as aromatization and substituent modification is given.

Science of Synthesis published new progress about 112253-70-0. 112253-70-0 belongs to class amides-buliding-blocks, and the molecular formula is C7H7BrN2O, Electric Literature of 112253-70-0.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Tan, Xi; Yang, Lingfeng; Khunti, Kamlesh; Zhang, Ruya; Zhang, Ye; Rajpathak, Swapnil; Yu, Miao published the artcile< Factors associated with switching from sulphonylureas to dipeptidyl peptidase 4 inhibitors among patients with type 2 diabetes in the United States>, Formula: C10H13ClN2O3S, the main research area is sulfonylurea dipeptidyl peptidase diabetes united states; DPP-4 inhibitor; cohort study; database research; observational study; sulphonylureas; type 2 diabetes.

Studies examining the prevalence of and factors associated with switching from sulfonylureas (SUs) to dipeptidyl peptidase 4 (DPP-4) inhibitors in real-world settings are lacking. We assessed the factors associated with switching from SUs to DPP-4 inhibitors in the United States. This retrospective cohort study was conducted using the Optum Clinformatics Data Mart (2009-2018). Adults with type 2 diabetes and newly prescribed at least two SUs were included and were followed for 2 years after the initiation of SU (index date). We compared the characteristics of those who switched from SUs to DPP-4 inhibitors (only; no addnl. antidiabetic drugs) with those who continued with SUs (without adding other antidiabetic drugs) using multivariate logistic regression. Multinomial regression analyses were also conducted to assess the factors associated with switching to different drug classes vs. continuation with SUs. In a sample of 119 107 new SU users, 2.2% (2633) switched to DPP-4 inhibitors, 3.8% (4542) switched to antidiabetic drugs other than DPP-4 inhibitors, 68.3% (81 394) discontinued SUs but did not switch to another antidiabetic drug, 12.9% (15 345) continued with SUs and added other antidiabetic drugs, and 12.8% (15 193) continued with SUs only. Multivariate logistic regression showed that those who had significantly higher likelihood of switching were younger, female [vs. males; adjusted odds ratio (AOR) = 0.70], and living in the south; had previous use of DPP-4 inhibitors (AOR = 1.71); were not using antidiabetic drugs at baseline; had more baseline diabetes-related emergency room visits (AOR = 1.13), depression (AOR = 1.34), post-index hypoglycemia (AOR = 2.20), and an earlier index year; and were glyburide users (vs. glimepiride users; AOR = 1.29). The discontinuation rate for SUs is high. Factors associated with switching from SUs to DPP-4 inhibitors included age, sex, geog. region, baseline antidiabetic drug use, type of SU, baseline diabetes-related emergency room visits, hypoglycemia and depression.

Diabetes, Obesity and Metabolism published new progress about Antidiabetic agents. 94-20-2 belongs to class amides-buliding-blocks, and the molecular formula is C10H13ClN2O3S, Formula: C10H13ClN2O3S.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics