Month: October 2022

Bisset, Alexander A.; Dishington, Allan; Jones, Teyrnon; Clarkson, Guy J.; Wills, Martin published the artcile< Synthesis and reduction reactions of pyridones and 5-acyl-2-methoxypyridines>, Electric Literature of 1192620-83-9, the main research area is pyridine pyridinone preparation.

The synthesis of a series of pyridones, from their 2-hydroxypyridine or 2-methoxypyridine precursors, is described, along with studies into their reductions to saturated heterocycles. A number of 5-acyl-pyridones were prepared and were evaluated as substrates for asym. transfer hydrogenation prior to conversion to saturated heterocycles. The enantioselective reduction of 5-acetyl-1-benzyl-2,4(1H,3H)-pyrimidinedione is also described. The synthesis of the target compounds was achieved using [(R)-BINAP]ruthenium diacetate, [N-[(1R,2R)-1,2-diphenyl-2-[[3-(η6-phenyl)propyl](3-phenylpropyl)amino-κN]ethyl]-4-methylbenzenesulfonamidato-κN](chloro)ruthenium [N-[(1R,2R)-2-(amino-κN)-1,2-diphenylethyl]-4-methylbenzenesulfonamidato-κN]chloro[(1,2,3,4,5,6-η)-1-methyl-4-(1-methylethyl)benzene]ruthenium and [N-[(1S,2S)-1,2-diphenyl-2-[[3-(η6-phenyl)propyl](3-phenylpropyl)amino-κN]ethyl]-4-methylbenzenesulfonamidato-κN](chloro)ruthenium as catalysts. The title compounds thus formed included chiral 5-(1-hydroxyethyl)-2-piperidinone derivatives

Tetrahedron published new progress about Enantioselective synthesis. 1192620-83-9 belongs to class amides-buliding-blocks, and the molecular formula is C30H31ClN2O2RuS, Electric Literature of 1192620-83-9.

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

Dong, Wei; Ge, Zemei; Wang, Xin; Li, Ridong; Li, Runtao published the artcile< Cu-mediated one-pot three-component synthesis of 3-N-substituted 1,4,2-benzodithiazine 1,1-dioxide derivatives>, Quality Control of 6961-82-6, the main research area is halobenzenesulfonamide amine carbon disulfide copper catalyst three component reaction; amino benzodithiazine dioxide preparation.

A novel and efficient copper-catalyzed one-pot procedure for the synthesis of 3-N-substituted 1,4,2-benzodithiazine 1,1-dioxide derivatives from 2-halobenzenesulfonamides, amines and CS2 was described. The reaction proceeded through Ullmann-type S-arylation, intramol. addition of NH2 with C=S and dehydrosulfide, which provided a new and useful strategy for construction of cyclic aromatic sulfonamides.

Tetrahedron published new progress about Amines Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 6961-82-6 belongs to class amides-buliding-blocks, and the molecular formula is C6H6ClNO2S, Quality Control of 6961-82-6.

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

Fu, Shaomin; Yang, Honghao; Li, Guoqiang; Deng, Yuanfu; Jiang, Huanfeng; Zeng, Wei published the artcile< Copper(II)-Catalyzed Enantioselective Intramolecular Cyclization of N-Alkenylureas>, Quality Control of 1524-40-9, the main research area is copper catalyzed enantioselective intramol cyclization alkenylurea bicyclic heterocycle synthesis; vicinal diamine cyclic enantioselective synthesis.

The first Cu(II)-catalyzed highly enantioselective intramol. cyclization of N-alkenylureas was developed for the concise assembly of chiral vicinal diamino bicyclic heterocycles [e.g., I → II (73%, 90% ee)]. Facile removal of carbonyl group of the carbamido moiety allowed for ready access to enantioenriched cyclic vicinal diamines.

Organic Letters published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (alkenylureas). 1524-40-9 belongs to class amides-buliding-blocks, and the molecular formula is C6H6FNO2S, Quality Control of 1524-40-9.

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

Abou-El-Naga, I. F.; Sa, D. E.; Gaafar, M. R.; Ahmed, S. M.; El-Deeb, S. A. published the artcile< A new scope for orlistat: Effect of approved anti-obesity drug against experimental microsporidiosis>, Product Details of C29H53NO5, the main research area is antiobesity drug orlistat microsporidiosis intestine.

As the current therapies for intestinal microsporidiosis are either inconsistent in their efficacies or hampered by several adverse effects, alternative antimicrosporidial agents are being sought. The present study is the first that was designed to evaluate the potency of orlistat, an approved anti-obesity drug, against intestinal microsporidiosis caused by both Enterocytozoon bieneusi and Encephalitozoon intestinalis. Results were assessed through studying fecal and intestinal spore load, intestinal histopathol. changes, viability, and infectivity of spores from treated animals. Results showed that orlistat has promising antimicrosporidia potential, with better results in E. intestinalis than E. bieneusi. The animals that received orlistat showed statistically significant decrease in the fecal and intestinal spore load, when compared to the corresponding control infected nontreated mice. The results were insignificant compared to fumagillin and albendazole. Light microscopic examination of stained intestinal sections revealed amelioration of the pathol. changes and decreased inflammatory cells detected in the control infected nontreated mice. Spores encountered from stool of orlistat-treated E. bieneusi and E. intestinalis mice showed low viability and significant reduction of infectivity vs. their control. Thus, considering the results of the present work, orlistat proved its effectiveness against the intestinal microsporidial infection.

Medical Mycology published new progress about Antiobesity agents. 96829-58-2 belongs to class amides-buliding-blocks, and the molecular formula is C29H53NO5, Product Details of C29H53NO5.

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

Feng, Jian-Bo; Wu, Xiao-Feng published the artcile< A general iodine-mediated synthesis of primary sulfonamides from thiols and aqueous ammonia>, Computed Properties of 1524-40-9, the main research area is sulfonamide primary aryl preparation green chem; thiol aryl ammonia oxidation iodine catalyst.

A general and efficient methodol. for preparing a wide range of primary sulfonamides, RSO2NH2 (R = 3,4-dichlorophenyl, naphthalen-2-yl, 1H-1,3-benzodiazol-2-yl, etc.) from the corresponding thiols RSH and aqueous ammonia, by using iodine as the catalyst and TBHP (70% in water) as the oxidant, in moderate to good yields has been developed.

Organic & Biomolecular Chemistry published new progress about Arenesulfonamides Role: SPN (Synthetic Preparation), PREP (Preparation). 1524-40-9 belongs to class amides-buliding-blocks, and the molecular formula is C6H6FNO2S, Computed Properties of 1524-40-9.

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

Chen, Xiulei; Zhou, Zhen; Li, Zhong; Xu, Xiaoyong published the artcile< Synthesis and nematicidal activities of 1,2,3-benzotriazin-4-one containing 4,5-dihydrothiazole-2-thiol derivatives against Meloidogyne incognita>, Name: 2-Amino-4-bromobenzamide, the main research area is benzotriazinone dihydrothiazole thiol preparation nematocidal activity.

A series of novel 1,2,3-benzotriazin-4-one derivatives containing 4,5-dihydrothiazole-2-thiol I (R = H, 5-OMe, 7-F, 8-NO2, etc.) was synthesized. The bioassay results showed that compounds I (R = 7-OMe, 6-NO2, 7-Cl (A)) exhibited good control efficacy against the cucumber root-knot nematode disease caused by Meloidogyne incognita at the concentration of 10.0 mg L-1 in vivo. Compound (A) showed excellent nematicidal activity with inhibition 68.3% at a concentration of 1.0 mg L-1. It suggested that the structure of 1,2,3-benzotriazin-4-one containing 4,5-dihydro-thiazole-2-thiol could be optimized further.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about Benzotriazines Role: AGR (Agricultural Use), BSU (Biological Study, Unclassified), RCT (Reactant), SPN (Synthetic Preparation), BIOL (Biological Study), USES (Uses), RACT (Reactant or Reagent), PREP (Preparation). 112253-70-0 belongs to class amides-buliding-blocks, and the molecular formula is C7H7BrN2O, Name: 2-Amino-4-bromobenzamide.

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

Sakthi, G. published the artcile< Contradictory opinion of the Terminalia chebula linn. -literature review>, SDS of cas: 94-20-2, the main research area is review Terminalia chebula drug interaction toxicity.

A review. Terminalia chebula is used as common and effective herb in traditional, Siddha & Ayurvedic medicine as Indian Medicine. In siddha medical system know as “”Mother of Herb”” is mentioned in manuscripts texts. In this research paper objected as enumerate the side effect or toxicity effect from Gall Nut or safe drug for all by searching the literatures in books and articles. Finally concluded by collected data results as; continuous drug period of intake for up to 3 mo. And drug interactions reported as; Taking Terminalia along with diabetes medications might cause your blood sugar to go too low. In toxicity studies shows as; In the acute phase of the study, the safe dose was ≤5000 mg/kg for both extracts In sub- acute phase, LD50 (95% CI) of Terminalia chebula extract 2754.436 (2438-3114) mg/kg. The highest dose of T. chebula extract induced few histopathol. changes.

European Journal of Biomedical and Pharmaceutical Sciences published new progress about Diabetes mellitus. 94-20-2 belongs to class amides-buliding-blocks, and the molecular formula is C10H13ClN2O3S, SDS of cas: 94-20-2.

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

Irigoyen, Sonia; Ramasamy, Manikandan; Pant, Shankar; Niraula, Prakash; Bedre, Renesh; Gurung, Meena; Rossi, Denise; Laughlin, Corinne; Gorman, Zachary; Achor, Diann; Levy, Amit; Kolomiets, Michael V.; Setamou, Mamoudou; Badillo-Vargas, Ismael E.; Avila, Carlos A.; Irey, Michael S.; Mandadi, Kranthi K. published the artcile< Plant hairy roots enable high throughput identification of antimicrobials against Candidatus Liberibacter spp.>, Electric Literature of 94-20-2, the main research area is antimicrobial hairy root disease Candidatus.

A major bottleneck in identifying therapies to control citrus greening and other devastating plant diseases caused by fastidious pathogens is our inability to culture the pathogens in defined media or axenic cultures. As such, conventional approaches for antimicrobial evaluation (genetic or chem.) rely on time-consuming, low-throughput and inherently variable whole-plant assays. Here, we report that plant hairy roots support the growth of fastidious pathogens like Candidatus Liberibacter spp., the presumptive causal agents of citrus greening, potato zebra chip and tomato vein greening diseases. Importantly, we leverage the microbial hairy roots for rapid, reproducible efficacy screening of multiple therapies. We identify six antimicrobial peptides, two plant immune regulators and eight chems. which inhibit Candidatus Liberibacter spp. in plant tissues. The antimicrobials, either singly or in combination, can be used as near- and long-term therapies to control citrus greening, potato zebra chip and tomato vein greening diseases.

Nature Communications published new progress about Antimicrobial agents. 94-20-2 belongs to class amides-buliding-blocks, and the molecular formula is C10H13ClN2O3S, Electric Literature of 94-20-2.

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

Shamarao, Nagashree; Chethankumar, Mukunda published the artcile< Antiobesity drug-likeness properties and pancreatic lipase inhibition of a novel low molecular weight lutein oxidized product, LOP6>, Application In Synthesis of 96829-58-2, the main research area is lutein oxidized product antiobesity pancreatic lipase inhibition obesity.

Elevated expression of peroxisome proliferator-activated receptor-gamma (PPAR-γ), a key regulator of adipogenesis, leads to lipid accumulation and obesity. Although orlistat is effective for obesity, flatus with discharge, faecal urgency, oily evacuation and other allied side effects limit its usage. Thus, natural product-based drug intervention is the future of research and development of novel treatment. We synthesized and characterized total lutein oxidized products (LOPs) by exposing lutein to direct sunlight with a solar intensity of 5.89 kW h m-2 day-1 and at 31 ± 2 °C for 1-10 days. Total LOPs were analyzed on C18 and structural elucidation was carried on LCMS/MS-TOF. The pancreatic lipase inhibition kinetics was estimated The binding effects of LOP6 (fragmented peak 6) on PPAR-γ, pancreatic lipase, pharmacokinetic properties and inhibition studies were analyzed. Histol. evaluation of liver and adipose tissues was performed to confirm the antiobesity effect of total LOPs. The yield of extracted lutein purified from shade-dried marigold flower petals was 6%. Total LOPs were formed on the 10th day upon exposure of lutein to direct sunlight. Total LOPs on the C18 column fragmented into eight oxidized products (LOP1 to LOP8). The total LOPs showed significant inhibition of pancreatic lipase activity with an IC50 of 1.6953 μg ml-1, and Km and Vmax of 3.05 μg and 1.19 μg s-1 resp. following mixed type of inhibition. The LOP6 [4-((1E,3E,5E)-3,7-dimethylocta-1,3,5,7-tetraen-1-yl)-3,5,5-trimethylcyclohex-3-enol] with an approx. mol. mass of 274.25 showed a binding energy of -5.40 kcal mol-1 with a Ki of 109.43 μM for PPAR-γ and a docking score of -5.35 kcal mol-1 with a Ki of 119.4 μM for pancreatic lipase. The IC50 of LOP6 was 11.8420 μg ml-1, and Km and Vmax were 2.519 μg and 1.294 μg s-1. The pharmacokinetic properties such as solubility, permeability, bioavailability, and topol. polar surface area when tested with LOP6 were significantly better than those of lutein alone. The histol. examination of the liver and adipose tissue revealed that all three doses of total LOPs were effective in alleviating the ballooning and vesicular degeneration of hepatocytes and invasion of inflammatory cells in the adipose tissue. Total LOPs and LOP6 inhibited pancreatic lipase activity in vitro. LOP6 showed a better docking score for PPAR-γ and pancreatic lipase in comparison to orlistat. Histol. data showed that the total LOPs exerted antiobesity activity. Thus, LOPs might provide a novel treatment approach for obesity.

Food & Function published new progress about Adipose tissue. 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

Abraham, Nathan S.; Shirts, Michael R. published the artcile< Adding Anisotropy to the Standard Quasi-Harmonic Approximation Still Fails in Several Ways to Capture Organic Crystal Thermodynamics>, Electric Literature of 94-20-2, the main research area is organic crystal thermodn quasi harmonic approximation anisotropy.

We evaluate the accuracy of varying thermal expansion models for the quasi-harmonic approximation (QHA) relative to mol. dynamics (MD) for 10 sets of enantiotropic organic polymorphs. Relative to experiment we find that MD, using an off-the-shelf point charge potential, gets the sign of the enthalpic contributions correct for 6 of the 10 pairs of polymorphs and the sign of the entropic contributions correct for all pairs. We find that anisotropic QHA provides little improvement to the error in free energy differences from MD relative to isotropic QHA, but does a better job capturing the thermal expansion of the crystals. A form of entropy-enthalpy compensation allows the free energy differences of QHA to deviate less than 0.1 kcal/mol from MD for most polymorphic pairs, despite errors up to 0.4 kcal/mol in the entropy and enthalpy. Deviations in the free energy of QHA and MD do not clearly correlate with mol. flexibility, clarifying a previously published finding. Much of the error previously found between QHA and MD for these flexible mols. is reduced when QHA is run from a lattice min. consistent with the same basin as MD, rather than the energy-minimized exptl. crystal structure. Specifically, performing anisotropic QHA on lattice min. quenched from low-temperature replica exchange simulations reduced the error previously found by 0.2 kcal/mol on average However, these conformationally flexible mols. can have many low-temperature conformational min., and the choice of an inconsistent min. causes free energies estimated from QHA to deviate from MD at temperatures as low as 10 K. We also find finite size errors in the polymorph free energy differences using anisotropic QHA, with free energy differences as large as 0.5 kcal/mol between unit and supercells loosely correlated with differences in anisotropic thermal expansion. These larger system sizes are computationally more accessible using our cheaper 1D variant of anisotropic QHA, which gives free energies within 0.02 kcal/mol of the fully anisotropic approach at all temperatures studied. The errors between MD and experiment are 1-2 orders of magnitude larger than those seen between QHA and MD, so the quality of the force field used is still of primary concern, but this study illustrates a number of other important factors that must be considered to obtain quant. organic crystal thermodn. We examine how much of the difference between the quasiharmonic approximation (QHA) and mol. dynamics (MD) is due to anisotropic expansion for 10 enantiotropic sets of polymorphs. Although consistent free energies with QHA are dependent on finding the lattice min. corresponding to the model, differences between methods are relatively small compared the differences from experiment due to choice of model.

Crystal Growth & Design published new progress about Anisotropy. 94-20-2 belongs to class amides-buliding-blocks, and the molecular formula is C10H13ClN2O3S, Electric Literature of 94-20-2.

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