Month: December 2022

Liu, Jitian published the artcileSynthesis of Lactams via Ir-Catalyzed C-H Amidation Involving Ir-Nitrene Intermediates, COA of Formula: C9H10O3, the main research area is iridium catalyst amidation rearrangement spirocyclization dioxazolone; lactam preparation.

X-membered lactams were synthesized via either an amidation of sp3 C-H bonds or an electrophilic substitution of arenes via Ir-nitrene intermediates. With the employment of a readily available iridium catalyst in dichloromethane or hexafluoro-2-propanol, a wide range of lactams were synthesized in good to excellent yields with high selectivity.

Journal of Organic Chemistry published new progress about Amidation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, COA of Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Chhatwal, A. Rosie published the artcileDirect synthesis of amides from nonactivated carboxylic acids using urea as nitrogen source and Mg(NO3)2 or imidazole as catalysts, SDS of cas: 104-01-8, the main research area is urea carboxylic acid magnesium nitrate imidazole catalyst coupling; primary amide preparation; secondary amide preparation.

A new method for the direct synthesis of primary and secondary amides from carboxylic acids was described using Mg(NO3)2·6H2O or imidazole as a low-cost and readily available catalyst, and urea as a stable, and easy to manipulate nitrogen source. This methodol. was particularly useful for the direct synthesis of primary and Me amides avoiding the use of ammonia and methylamine gas which can be tedious to manipulate. Furthermore, the transformation does not require the employment of coupling or activating agents which are commonly required.

Chemical Science published new progress about Amidation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, SDS of cas: 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Umar, Abdullahi Bello published the artcileQSAR and Docking Studies on Some Potential Anti-Cancer Agents to Predict their Effect on M14 Melanoma Cell Line, HPLC of Formula: 1455-77-2, the main research area is melanoma cell QSAR mol docking.

Abstract: The global incidence of melanoma cancer is increasing rapidly and its metastatic form causes high mortality rates. The research report illustrates the development of a quant. structure-activity relationship (QSAR) to predict the activities (pGI50) of some anti-cancer agents on melanoma cancer cell line. Subsequently, most potent compounds that showed better pGI50 activities were selected and screened via Lipinskis rule of five for drug likeness, ADMET risk parameters and lastly docking simulation studies was performed to elucidate their binding mode. Kennard-Stone algorithm was adopted for the data division, the genetic function algorithm was employed for variable selection and multiple linear regressions method was utilized for model development. The derived QSAR model showed, resp. acceptable [R2 (0.805), R2adjusted (0.773), Qcv2 (0.754) and R2pred (0.703)]. The obtained cRP2 for Y-randomization is 0.649, and applicability-domain (A-D) was assessed via leveraged method. Among the screened compounds via Lipinskis rule of five for oral bioavailability, ADMET risk filter for drug-like features and Docking simulation studies, compound 18 and 25 were identified as the best ligands having the better interactions energies (- 150.679 kcal mol-1 and – 176.246 kcal mol-1) and showed better interactions with the receptor than vemurafenib (- 147.245 kcal mol-1). Thus, the results of this research would be helpful in identification of lead mol. and optimization of novel drug.

Chemistry Africa published new progress about Algorithm. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, HPLC of Formula: 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wan, Zhongyu published the artcileQuantitative structure-property relationship of standard enthalpies of nitrogen oxides based on a MSR and LS-SVR algorithm predictions, Application In Synthesis of 598-50-5, the main research area is nitrogen oxide structure relation least squares support vector regression.

Quantum chem. method is used to calculate 1444 descriptors of each N oxide mol. Variables are screened by using multiple stepwise regression (MSR). The optimal 10-element regression equation is derived, its R2 = 0.934 and Q2 = 0.927. The support vector regression (SVR) model between 10 mol descriptors and standard formation enthalpy is established, and the support vector machine is optimized by using the least squares method (LS). The training set consisting of 78 compounds have R2 = 0.969 and Q2 = 0.954. The other 22 compounds constitute the test set to verify the external prediction ability of the model, and its R2 = 0.958. It demonstrates that the LS-SVR model has good stability and prediction ability, and overcomes the problem of over-fitting. The conclusion of quant. structural property relation (QSPR) shows that the mol. descriptor and the standard enthalpy of formation are nonlinear 2nd-order functions. The authors speculate that the electronegativity of atoms is the key to determine the standard enthalpy of formation of compounds

Journal of Molecular Structure published new progress about Algorithm. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Application In Synthesis of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yanina, Irina Yu. published the artcileImmersion optical clearing of adipose tissue in rats: ex vivo and in vivo studies, Quality Control of 117-96-4, the main research area is diatrizoic acid dimethylsulfoxide adipose tissue; adipose tissue; diffusion coefficient; ex vivo and in vivo optical clearing; reduced scattering coefficient; refractive index.

Optical clearing (OC) of adipose tissue has not been studied enough, although it can be promising in medical applications, including surgery and cosmetol., for example, to visualize blood vessels or increase the permeability of tissues to laser beams. The main objective of this work is to develop technol. for OC of abdominal adipose tissue in vivo using hyperosmotic optical clearing agents (OCAs). The maximum OC effect (77) was observed for ex vivo rat adipose tissue samples exposed to OCA on fructose basis for 90 min. For in vivo studies, the maximum effect of OC (65) was observed when using OCA based on diatrizoic acid and dimethylsulfoxide for 120 min. Histol. anal. showed that in vivo application of OCAs may induce a limited local necrosis of fat cells. The efficiency of OC correlated with local tissue damage through cell necrosis due to accompanied cell lipolysis.

Journal of Biophotonics published new progress about Adipocyte. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Quality Control of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Cho, Hyunkyung published the artcileIdentification of a New Chemotype of Anti-Obesity Compounds by Ensemble Screening, Related Products of isoquinoline, the main research area is pharmacophore screening piper amide oxadiazole antiobesity toxicity lipid.

Despite the increasing prevalence of overweight or obesity in the global population, most of the approved drugs for obesity are still not ideal for long-term use due to severe cardiovascular and/or neurol. side effects. Therefore, we designed a library-implemented virtual screening (VS) approach to discover new anti-obesity agents without significant toxicity. The Bayesian classification and 3D pharmacophore model for the VS process were built by using the screening results of our inhouse library of natural piper amide-like compounds, which possess a wide range of biol. activities and relatively low toxicities. The VS process identified six compounds of different classes with enhanced inhibitory activities against lipid accumulation and without toxicity. Moreover, the most active compound with an oxadiazole scaffold resulted in weight loss and improved the fatty liver condition of mice with overnutrition in animal experiments

ACS Omega published new progress about Adipocyte. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Shuangshuang published the artcileAmino acid-oriented poly-substituted heterocyclic tetramic acid derivatives as potential antifungal agents, Recommanded Product: 4-Methoxyphenylacetic acid, the main research area is heterocyclic tetramic acid synthesis antifungal agent phytopathogenic fungus; fungicidal structure activity natural product antibiotic thiolactomycin; amino acid phenylacetic esterification acylation amidation Dieckmann cyclocondensation; Antifungal activities; Fungicides; Plant pathogenic fungus; Synthesis; Tetramic acid.

In order to find new potential pesticide mols. with antifungal activities, we have designed and synthesized a series of amino acid-oriented poly-substituted tetramic acid derivatives, and evaluated their potential antifungal activities against six kinds of plant pathogenic fungi commonly found in agriculture systematically, including Phomopsis adianticola, Fusarium graminearum, Alternaria tenuis Nees, Magnaporthe oryzae, Gloeosporium theae-sinensis, Sclerotinia sclerotiorum. According to the preliminary bioassay studies, all tested mols., especially compounds (I) [R1 = H, R2 = H, R3 = Bn, R4 = CO-C(Me,Me)Et; R1 = 2-Me, R2 = H, R3 = Bn, R4 = CO-C(Me,Me)Et; R1 = 2,4-Cl, R2 = H, R3 = CH2SMe, R4 = CO-i-Pr; R1 = H, R2 = 4-i-Pr-C6H5, R3 = Me, R4 = CO-i-Pr] exhibited significant and broad-spectrum anti-fungal effect in vitro compared to the intermediates M-1, M-2, M-3 and hymexazol. What’s more, the inhibition rate of compounds I (R1 = 2-Me, R2 = H, R3 = Bn, R4 = CO-C(Me,Me)Et; R1 = 4-F, R2 = H, R3 = Bn, R4 = CO-i-Pr; R1 = H, R2 = 4-i-Pr-C6H5, R3 = Me, R4 = CO-i-Pr) against Phomopsis adianticola reached 74.42%, 60.33%, 65.21%, as well as compounds I (R1 = R2 = H, R3 = Bn, R4 = CO-OEt; R1 = H, R2 = 4-i-Pr-C6H5, R3 = Me, R4 = CO-i-Pr) against Sclerotinia sclerotiorum were 65.65%, 74.92%, 61.36%. Further investigation results indicated that compounds I [R1 = H, R2 = H, R3 = Bn, R4 = CO-C(Me,Me)Et; R1 = 2-Me, R2 = H, R3 = Bn, R4 = CO-C(Me,Me)Et; R1 = H, R2 = 4-i-Pr-C6H5, R3 = Me, R4 = CO-i-Pr] presented obviously inhibitory activities against Phomopsis adianticola compared with hymexazol, which might be considered as the basic active framework for further potential fungicides discovery.

European Journal of Medicinal Chemistry published new progress about Acylation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Recommanded Product: 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Merkens, Kay published the artcileSynthesis of unnatural α-amino acid derivatives via light-mediated radical decarboxylative processes, Product Details of C9H10O3, the main research area is unnatural amino acid synthesis light mediated radical reaction mechanism; chiral dehydroalanine benzylation acylation alkylation carboxylic keto acid decarboxylation.

Unnatural amino acids (UAAs) are key building blocks with widespread application across several scientific fields. Therefore, it is highly attractive to develop straightforward and simple methodologies capable of granting quick access to these species. Herein we report a light-mediated protocol for the synthesis of UAA via radical decarboxylative processes. This methodol., which employs readily available and abundant starting materials – such as carboxylic and α-keto acids – proceeds under very mild reaction conditions and shows a high functional group tolerance. In addition, the products of the radical reaction can be readily derivatized to grant rapid access to complex UAAs.

Advanced Synthesis & Catalysis published new progress about Acylation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ge, Liang published the artcileIron-Catalyzed Radical Acyl-Azidation of Alkenes with Aldehydes: Synthesis of Unsymmetrical β-Azido Ketones, Formula: C11H12O3, the main research area is alkene aldehyde azidotrimethylsilane iron radical acylation azidation catalyst; ketone azido preparation.

An iron-catalyzed acyl-azidation of alkenes under mild reaction conditions has been developed. Aromatic aldehydes or aliphatic aldehydes can be used as the acyl radical precursors; TMSN3 is used as the azido source; TBHP is the initiator. The synthesized unsym. β-azido ketones can be easily transformed into valuable functionalized compounds, such as γ-aminol, γ-azido alc., β-azido oxime, β-azido ester, and triazoles.

Organic Letters published new progress about Acylation. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Thamaraiselvan, Chidambaram published the artcileCoupled electrochemical transformation and filtration of water pollutants by cathodic-carbon nanotube membranes, Computed Properties of 117-96-4, the main research area is electrochem transformation filtration water pollution cathodic carbon nanotube membrane.

This study aimed at evaluating the concomitant electrochem. reduction and separation of organic and inorganic model contaminants from water. A highly conductive (40,000 S/m) support free carbon nanotube (CNT) membrane was used as a cathode in a three-electrode electrochem. crossflow membrane filtration system. Diatrizoate (DTZ), a recalcitrant iodinated contrast media; resazurin (RZ), a redox indicator; and hexavalent chromium ion (Cr(VI)), a ‘gold’ standard for characterization of reducing systems, were tested as model contaminants. Voltages of -0.6 to -1.0 V were enough to remove between 90% and 95% of the three model contaminants tested. Removal of Cr(VI) proceeded by reduction to Cr(III) followed by adsorption onto the cathode, which could be efficiently regenerated (up to 95%) applying reversal (anodic) potential. Preliminary findings applying AC current (0.6-1.5 V, 10 Hz-1 kHz) suggest that it could be a feasible approach for detoxification with minimization of membrane clogging. Resazurin was immediately transformed into resorufin to near completion which was in turn further reduced to dihydroresorufin. The reductive transformation of DTZ resulted in almost complete deiodination, leading to the accumulation of 3,5-diacetamidobenzoic acid as the main end-product. Although other five secondary transformation products were detected, four of them were fully deiodinated. Concluding, the proposed electrochem. filtration cell equipped with a highly conductive CNT-cathodic membrane can be regarded as a potential technique for water decontamination and effective dehalogenation of organic compounds

Journal of Environmental Chemical Engineering published new progress about Acylation. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Computed Properties of 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem