Month: October 2022

On April 27, 2020, Shaikh, Aslam C.; Veleta, Jose M.; Bloch, Jan; Goodman, Hannah J.; Gianetti, Thomas L. published an article.Name: Methyl 2-cyclopentanonecarboxylate The title of the article was Syntheses of Phosphonium Salts from Phosphines and Carbenium: Efficient CO2 Fixation and Phase-Transfer Catalysts. And the article contained the following:

A new library of phosphonium salts was synthesized from the reaction of tris-(2,6-dimethoxyphenyl)carbenium with different phosphines. The resultant phosphonium salts work as efficient phase-transfer catalysts for the alkylation of 1,3-dicarbonyl compounds One compound, a bifunctional phosphonium salt prepared from tris-(2,6-dimethoxyphenyl)carbenium and an aminophosphine, also is an efficient catalyst for CO2 fixation reactions with epoxides under mild conditions. The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).Name: Methyl 2-cyclopentanonecarboxylate

The Article related to carbeniumphosphonium salt preparation phase transfer catalyst carbon dioxide fixation, phenylcarbenium reaction phosphine, phosphonium carbenium salt preparation catalyst epoxide carbon dioxide fixation, cyclic carbonate preparation, alkylation keto ester carbeniumphosphonium salt phase transfer catalyst, crystal structure triphenylcarbenium phosphonium salt and other aspects.Name: Methyl 2-cyclopentanonecarboxylate

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

On August 1, 2002, Arrhenius, Thomas; Chen, Mi; Cheng, Jie Fei; Huang, Yujin; Nadzan, Alex; Penuliar, Richard; Wallace, David; Zhang, Lin published a patent.HPLC of Formula: 53838-27-0 The title of the patent was Preparation of hydroxyhexafluoropropylazoles, -azines, and alkynes as malonyl-CoA decarboxylase inhibitors useful as metabolic modulators. And the patent contained the following:

Pharmaceutical compositions for inhibiting malonyl-CoA decarboxylase (MCD) comprising ZF2CCWX(AY) [W = (substituted) 5-membered nonaromatic heterocyclyl containing 1 double bond, 6-membered heterocyclyl containing 0-2 double bonds, alkynyl, 5-6 membered heteroaryl; A = O, S, NR3; X = H, CF2Z, CF3; XY = double bond; Z = F, Br, Cl, iodo, CF3], are claimed. Thus, 2-[2-(butylamino)thiazol-5-yl]-1,1,1,3,3,3-hexafluoropropan-2-ol (preparation given) was refluxed 4 h with EtNCO in benzene to give N-butyl-N’-ethyl-N-[5-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]thiazol-2-yl]urea. Tested title compounds inhibited MCD with IC50 = 0.024-3.71 μM. The experimental process involved the reaction of (S)-5-tert-Butyl 1-methyl 2-aminopentanedioate(cas: 53838-27-0).HPLC of Formula: 53838-27-0

The Article related to azole preparation malonyl coa decarboxylase inhibitor, thiazole hexafluorohydroxypropyl acylamino preparation malonyl coa decarboxylase inhibitor, fatty acid glucose metabolism disorder treatment azole, cardiovascular disease treatment azole preparation, angina pectoris treatment azine, obesity treatment alkyne, acidosis treatment azole, cancer treatment azole and other aspects.HPLC of Formula: 53838-27-0

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

On March 4, 1999, Hewawasam, Piyasena; Starrett, John E., Jr.; Swartz, Stephen G. published a patent.Application In Synthesis of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate The title of the patent was Preparation of 4-aryl-3-aminoquinoline-2-ones as potassium channel modulators. And the patent contained the following:

The title compounds [I; R, R1 = H, Me; R2-R4 = H, halo, NO2, CF3; R5 = H, alkyl, alkylsulfonyl, etc.; R6 = H, Br, Cl, NO2] which are modulators of the large conductance calcium-activated K+ channels and are useful in the treatment of disorders which are responsive to the opening of the potassium channels such as ischemia, stroke, convulsions, epilepsy, asthma, irritable bowel syndrome, migraine, traumatic brain injury, spinal cord injury, male erectile dysfunction, and urinary incontinence, were prepared Thus, demethylation of 3-amino-4-(5-chloro-2-methoxyphenyl)-6-(trifluoromethyl)quinolin-2(1H)-one (preparation given) with BBr3 in CH2Cl2 afforded 97% I [R1 = H; R2 = R4 = H; R3 = CF3; R5 = H; R6 = Cl; RO = 2-OH] which showed > 150% increase over BK current in controls at 20 μM. The experimental process involved the reaction of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate(cas: 141940-37-6).Application In Synthesis of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

The Article related to potassium channel modulator arylaminoquinolinone preparation, quinolinone arylamino preparation potassium channel modulator, ischemia arylaminoquinolinone preparation, stroke arylaminoquinolinone preparation, anticonvulsant arylaminoquinolinone preparation, antiasthmatic arylaminoquinolinone preparation, irritable bowel syndrome arylaminoquinolinone preparation and other aspects.Application In Synthesis of tert-Butyl (4-(trifluoromethyl)phenyl)carbamate

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

On July 13, 2020, Smith, Jacob A.; Simpson, Spenser R.; Westendorff, Karl S.; Weatherford-Pratt, Justin; Myers, Jeffery T.; Wilde, Justin H.; Dickie, Diane A.; Harman, W. Dean published an article.Recommanded Product: 707-07-3 The title of the article was η2 Coordination of Electron-Deficient Arenes with Group 6 Dearomatization Agents. And the article contained the following:

The exceptionally π-basic metal fragments {MoTp(NO)(DMAP)} and {WTp(NO)(PMe3)} (Tp = tris(pyrazolyl)borate; DMAP = 4-(N,N-dimethylamino)pyridine) form thermally stable η2-coordinated complexes with a variety of electron-deficient arenes. The tolerance of substituted arenes with F-containing electron withdrawing groups (EWG; -F, -CF3, -SF5) was examined for both the Mo and W systems. When the EWG contains a π bond (nitriles, aldehydes, ketones, ester), η2 coordination occurs predominantly on the nonaromatic functional group. However, complexation of the W complex with tri-Me orthobenzoate (PhC(OMe)3) followed by hydrolysis allows access to an η2-coordinated arene with an ester substituent. In general, the W system tolerates S-based withdrawing groups well (e.g., PhSO2Ph, MeSO2Ph), and the integration of multiple electron-withdrawing groups on a benzene ring further enhances the π-back-bonding interaction between the metal and aromatic ligand. While the Mo system did not form stable η2-arene complexes with the sulfones or ortho esters, it was capable of forming rare examples of stable η2-coordinated arene complexes with a range of fluorinated benzenes (e.g., fluorobenzene, difluorobenzenes). In contrast to what was observed for the W system, these complexes formed without interference of C-H or C-F insertion. The experimental process involved the reaction of (Trimethoxymethyl)benzene(cas: 707-07-3).Recommanded Product: 707-07-3

The Article related to benzenoid aromatic compound molybdenum tungsten pyrazolylborate complex preparation electrochem, crystal structure benzenoid aromatic compound molybdenum tungsten pyrazolylborate complex, mol structure benzenoid aromatic compound molybdenum tungsten pyrazolylborate complex, bond dissociation energy benzenoid aromatic compound molybdenum tungsten pyrazolylborate and other aspects.Recommanded Product: 707-07-3

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

On August 15, 2019, Zhang, Huijuan; Cui, Jiefen; Tian, Guifang; DiMarco-Crook, Christina; Gao, Wei; Zhao, Chengying; Li, Genyuan; Lian, Yunhe; Xiao, Hang; Zheng, Jinkai published an article.Recommanded Product: Methyl N-Methylanthranilate The title of the article was Efficiency of four different dietary preparation methods in extracting functional compounds from dried tangerine peel. And the article contained the following:

Dried tangerine peel (DTP) is an excellent plant resource that has been used as ingredients for both food and traditional Chinese medicine. In this study, the efficiency of four different dietary preparation methods (i.e. soaking, boiling, steaming, and ethanol extraction) in extraction of functional compounds (i.e. flavonoids and essential oil constituents) from DTP was evaluated systematically for the first time. To conduct a comprehensive evaluation of the extraction of the functional compounds, a synthetic evaluation model based on a weighting method was established. The optimum conditions of each dietary preparation method (e.g., time, temperature, solid-liquid ratio, etc.) were determined by response surface methodol. Ethanol extraction showed the best extraction efficiency, followed by soaking, boiling, and steaming. Addnl., different DTP extracts were shown to be clearly distinguished by electronic eye and electronic tongue. This research provides essential findings for the effective dietary instruction of DTP consumption. The experimental process involved the reaction of Methyl N-Methylanthranilate(cas: 85-91-6).Recommanded Product: Methyl N-Methylanthranilate

The Article related to boiling, citrus tangerina, essential oils role: bsu (biological study, unclassified), ffd (food or feed use), biol (biological study), uses (uses), flavonoids role: bsu (biological study, unclassified), ffd (food or feed use), biol (biological study), uses (uses), food processing, natural products, plant tissue, peel, solvent extraction, steam heating, tangerine and other aspects.Recommanded Product: Methyl N-Methylanthranilate

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

On October 31, 2019, Christia, Christina; Tang, Bin; Yin, Shan-Shan; Luo, Xiao-Jun; Mai, Bi-Xian; Poma, Giulia; Covaci, Adrian published an article.Recommanded Product: Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate The title of the article was Simultaneous determination of legacy and emerging organophosphorus flame retardants and plasticizers in indoor dust using liquid and gas chromatography-tandem mass spectrometry: method development, validation, and application. And the article contained the following:

A method was developed and validated to simultaneously detect and quantify 19 organophosphorus flame retardants (PFR/ePFR; 14 legacy, 5 emerging) and 20 plasticizers (7 legacy [LP], 13 alternative plasticizers [AP]). Sample preparation was based on combining previously validated anal. protocols, including ultrasonic extraction and Florisil fractionation/clean-up. The anal. was liquid chromatog./tandem mass spectrometry (LC/MS-MS) for all targeted compounds except bis (2-ethylhexyl) phthalate (DEHP) and bis (2-ethylhexyl) terephthalate (DEHT), for which isomer separation resulted in more favorable gas chromatog./electron ionization/mass spectrometry (GC-EI-MS) anal. This method was validated using two levels of analyte fortification in dust. Achieved linearity (R2) was 0.993-0.999. Limits of detection and quantification (LOD, LOQ) were 1-265 ng/g and 1-870 ng/g for all analytes, resp., except DEHP and DEHT, for which relatively higher LOD (665 and 1100 ng/g) and LOQ (2100 and 3500 ng/g) resp., were observed Accuracy was 75-125% for most of analytes; repeatability was good with relative standard deviation <15% for most compounds The method determined/quantified targeted analytes in house dust (n = 10) from Guangzhou, China. Median concentrations were 3-210 ng/g for PFR, 4-165 ng/g for ePFR, 30-100,000 ng/g for LP, and 6-34,000 ng/g for AP. Main contributors to total contamination were LP (63%) and AP (37%) in total plasticizers; PFR and ePFR contributed 90 and 10% of total flame retardants. The experimental process involved the reaction of Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate(cas: 3319-31-1).Recommanded Product: Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

The Article related to environmental analysis, fire-resistant materials (organophosphorus), fireproofing agents (organophosphorus), fractionation (analyte florisil), gas chromatography (mass spectrometry and), household dust, liquid chromatography-tandem mass spectrometry, plasticizers, ultrasonication (vortexing and, extraction method) and other aspects.Recommanded Product: Tris(2-ethylhexyl) benzene-1,2,4-tricarboxylate

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

On April 4, 2000, Suzuki, Nobuhiro; Takekawa, Shiro; Kubo, Keiji; Imaeda, Yasuhiro published a patent.Product Details of 29704-38-9 The title of the patent was Preparation of imidazole derivatives as gonadotropin-releasing hormone antagonists. And the patent contained the following:

Claimed are gonadotropin-releasing hormone (GnRH) antagonists containing the title compounds [I; ring A = (un)substituted Ph; ring B = (un)substituted cyclic group; R4 , R6 = H, (un)substituted C1-6 alkyl, C2-6 alkenyl, C3-7 cycloalkyl, (un)substituted C7-13 aralkyl, C2-7 alkoxycarbonyl; R5 = H, halo, (un)substituted C1-6 alkyl, C1-6 alkoxy, C2-7 alkoxycarbonyl, etc.; X = bond, C1-6 alkylene, C2-6 alkenylene, C1-6 alkylene-NHCO, C1-6 alkylene-O2NH; Y = CO, SO2, NHCO, C1-6 alkylene-CO, C2-6 alkylene-CO, C1-6 alkylene] or pharmacol. acceptable salts thereof. These compounds are useful for the treatment or prevention of gonadotropin-releasing hormone-related diseases such as sex hormone-dependent cancer, prostate cancer, uterine cancer, breast cancer, prostatic hypertrophy, true precocious puberty, endometriosis, hysteromyoma, pregnancy regulators, and menstruation regulators. Thus, 5-amino-2-(4-methoxyphenyl)benzimidazole was condensed with 4-pyrrolidinobenzoic acid using di-Et cyanophosphate in the presence of Et3N and 4-dimethylaminopyridine in DMF at room temperature for 1 h to give 41% 2-(4-methoxyphenyl)-5-((4-pyrrolidinobenzoyl)amino)benzimidazole (II). II in vitro showed IC50 of μg/mL for inhibiting the binding of [125I]leuprolelin to a membrane sample of CHO cell expressing human GnRH receptor. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).Product Details of 29704-38-9

The Article related to antitumor agents, benign prostatic hyperplasia, endometriosis, mammary gland neoplasm, menstruation (regulators), myoma (hysteromyoma), neoplasm (sex hormone-dependent), precocious puberty (true), pregnancy (regulators), prostate gland neoplasm, uterus neoplasm and other aspects.Product Details of 29704-38-9

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

On June 3, 2010, Mochizuki, Akiyoshi; Nagata, Tsutomu; Kishida, Masanori; Takano, Daisuke; Kanno, Hideyuki published a patent.Electric Literature of 114312-57-1 The title of the patent was Preparation of N-(2-acylaminobenzyl or 2-acylaminoheterocyclylmethyl)thiophene-2-carboxamide derivatives as antithrombotics. And the patent contained the following:

Diamides represented by the general formula [I; ring A = benzene, pyridine, pyridazine, pyrazine, or pyrimidine ring; R1 = H, halo, C1-6 alkyl, halo-C1-6 alkyl, HO, C1-6 alkoxy, halo-C1-6 alkoxy; R2 = H, halo, C1-6 alkyl, halo-C1-6 alkyl, HO, C1-6 alkoxy, halo-C1-6 alkoxy, C1-6 alkylsulfonyloxy, cyano, CO2H, C1-6 alkoxycarbonyl, carboxy-C1-6 alkyl, each (un)substituted CONH2 or NH2, , etc.; T1 = CONR3, NR3CO; R3 = H, C1-6 alkyl; T2 = CR4R5NHCO; R4, R5 = H, C1-6 alkyl; Q1 = C1-6 alkylsulfonylphenyl, N,N-di(C1-6 alkyl)aminocyclohexyl, 2-oxopyrrolidinyl, 2-oxo[1,3]oxazolidinyl, 1,1-dioxo-1λ6-isothiazolidinyl, 1-C1-6 alkylpiperidinyl, etc.; Q2 = a single bond, (un)substituted 1,4-phenylene, piperidine-1,4-diyl, thiazole-2,5-diyl, [1,3,4]thiadiazole-2,5-diyl, pyridine-2,5-diyl; Q3 = each (un)substituted Ph, thienyl, pyrrolyl, or pyridyl] or pharmacol. acceptable salts thereof were prepared These compounds have a potent inhibitory activity on activated blood coagulation factor Xa (FXa) and exhibit quick, sufficient and lasting antithrombotic effect even by oral administration. They are useful for the prevention and/or treatment of thrombus or embolism, more specifically cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary embolism, Buerger disease, deep vein thrombosis, disseminated intravascular coagulation (DIC), thrombus formation after artificial valve/joint replacement, thrombus formation or re-obstruction (clogging) after vascular reconstruction, multiple organ failure (MODS), thrombus formation during extracorporeal circulation, or blood coagulation during blood sampling. Thus, 5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic acid hydrochloride 260, HOBt 140, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride 234 mg, and 320 μL Et3N were added to a solution of 253 mg N-(2-aminobenzyl)-5-chlorothiophene-2-carboxamide in 10 mL DMF and the resulting mixture was stirred at room temperature for 23 h to give, after workup, 262 mg N-[2-[[[(5-Chlorothiophen-2-yl)carbonyl]amino]methyl]phenyl]-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamide (II). II hydrochloride and 4-[[[(5-Chlorothiophen-2-yl)carbonyl]amino]methyl]-3-fluoro-5-[[(5-isopropyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]amino]benzoic acid Me ester (III) inhibited human FXa with IC50 of 1.7 and 0.51 nM, resp. The experimental process involved the reaction of Ethyl 3-fluoro-2-methylbenzoate(cas: 114312-57-1).Electric Literature of 114312-57-1

The Article related to angina pectoris, anticoagulants, brain infarction, diamides role: pac (pharmacological activity), spn (synthetic preparation), thu (therapeutic use), biol (biological study), prep (preparation), uses (uses), disseminated intravascular blood coagulation, embolism, homo sapiens, human, multiple organ failure, myocardial infarction, pulmonary embolism, stroke, thromboangiitis obliterans, thrombus, venous thrombosis and other aspects.Electric Literature of 114312-57-1

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