Tag: 100-200

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

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 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 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 September 17, 2021, Zhu, Yasheng; Wang, Hongliang; Wang, Gang; Wang, Zehua; Liu, Zhaopeng; Liu, Lei published an article.Safety of 3-Acetyldihydrofuran-2(3H)-one The title of the article was Enantioselective Construction of Single and Vicinal All-Carbon Quaternary Stereocenters through Ion Pair Catalyzed 1,6-Conjugate Addition. And the article contained the following:

An asym. 1,6-conjugate addition to presynthesized δ-aryl-δ-cyano disubstituted para-quinone methides I (R = H, 3-Me, 3-bromo; Ar = Ph, 4-methylphenyl, 2-naphthyl, etc.) through bifunctional phosphonium-amide promoted ion pair catalysis for acyclic all-carbon quaternary stereocenter construction has been described. Both acyclic and cyclic 1,3-dicarbonyls CH2(C(O)OR1)2 (R1 = Ph, 2-methylphenyl, benzyl, etc.)/II (R2 = Me, Et, Bu, allyl) participate in asym. alkylation reaction, furnishing a wide array of diarylmethanes bearing a single acyclic or vicinal cyclic and acyclic quaternary carbon stereocenters III/IV in high efficiency with excellent stereoselectivity. Computational studies elucidate the origin of enantioselectivity. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Safety of 3-Acetyldihydrofuran-2(3H)-one

The Article related to cyano hydroxyphenyl aryl methyl propane dicarboxylic ester preparation enantioselective, quinonemethide acyclic dicarbonyl compound conjugate addition phosphonium amide catalyst, cyanohydroxyphenyl aryl methyl oxocyclopentane carboxylic ester preparation enantioselective, cyclic dicarbonyl compound quinonemethide conjugate addition phosphonium amide catalyst and other aspects.Safety of 3-Acetyldihydrofuran-2(3H)-one

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

On September 17, 2021, Zhu, Yasheng; Wang, Hongliang; Wang, Gang; Wang, Zehua; Liu, Zhaopeng; Liu, Lei published an article.Related Products of 10472-24-9 The title of the article was Enantioselective Construction of Single and Vicinal All-Carbon Quaternary Stereocenters through Ion Pair Catalyzed 1,6-Conjugate Addition. And the article contained the following:

An asym. 1,6-conjugate addition to presynthesized δ-aryl-δ-cyano disubstituted para-quinone methides I (R = H, 3-Me, 3-bromo; Ar = Ph, 4-methylphenyl, 2-naphthyl, etc.) through bifunctional phosphonium-amide promoted ion pair catalysis for acyclic all-carbon quaternary stereocenter construction has been described. Both acyclic and cyclic 1,3-dicarbonyls CH2(C(O)OR1)2 (R1 = Ph, 2-methylphenyl, benzyl, etc.)/II (R2 = Me, Et, Bu, allyl) participate in asym. alkylation reaction, furnishing a wide array of diarylmethanes bearing a single acyclic or vicinal cyclic and acyclic quaternary carbon stereocenters III/IV in high efficiency with excellent stereoselectivity. Computational studies elucidate the origin of enantioselectivity. The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).Related Products of 10472-24-9

The Article related to cyano hydroxyphenyl aryl methyl propane dicarboxylic ester preparation enantioselective, quinonemethide acyclic dicarbonyl compound conjugate addition phosphonium amide catalyst, cyanohydroxyphenyl aryl methyl oxocyclopentane carboxylic ester preparation enantioselective, cyclic dicarbonyl compound quinonemethide conjugate addition phosphonium amide catalyst and other aspects.Related Products of 10472-24-9

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

Thiyagarajan, Subramanian; Krishnakumar, Varadhan; Gunanathan, Chidambaram published an article in 2020, the title of the article was KOtBu-Catalyzed Michael Addition Reactions Under Mild and Solvent-Free Conditions.Quality Control of 3-Acetyldihydrofuran-2(3H)-one And the article contains the following content:

Herein, a mild and environmentally friendly strategy of readily available KOtBu-catalyzed Michael addition reactions was demonstrated. This simple inorganic base efficiently catalyzed the Michael addition of underexplored acrylonitriles, esters and amides with oxa-, aza-, and thia-heteroatom nucleophiles to afford Michael addition products. This catalytic process proceeded under solvent-free conditions and at room temperature Notably, this protocol offered an easy operational procedure, broad substrate scope with excellent selectivity, reaction scalability and excellent TON (>9900). Preliminary mechanistic studies revealed that the reaction followed an ionic mechanism. Formal synthesis of promazine was demonstrated using this catalytic protocol. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Quality Control of 3-Acetyldihydrofuran-2(3H)-one

The Article related to nitrile alkyl green preparation, acrylonitrile heteroatom nucleophile michael base catalyst, ester alkyl green preparation, acrylic ester heteroatom nucleophile michael base catalyst, amide alkyl green preparation, acrylamide heteroatom nucleophile michael base catalyst, michael addition, base catalysis, green synthesis, nitriles, sustainable chemistry and other aspects.Quality Control of 3-Acetyldihydrofuran-2(3H)-one

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

On August 2, 2021, Li, Fuzhuo; Yang, Li-Cheng; Zhang, Jingyang; Chen, Jason S.; Renata, Hans published an article.Quality Control of (R)-Methyl 3-hydroxybutanoate The title of the article was Stereoselective synthesis of β-branched aromatic α-amino acids by biocatalytic dynamic kinetic resolution. And the article contained the following:

β-Branched noncanonical amino acids are valuable mols. in modern drug development efforts. However, they are still challenging to prepare due to the need to set multiple stereocenters in a stereoselective fashion, and contemporary methods for the synthesis of such compounds often rely on the use of rare-transition-metal catalysts with designer ligands. Herein, we report a highly diastereo- and enantioselective biocatalytic transamination method to prepare a broad range of aromatic β-branched α-amino acids. Mechanistic studies show that the transformation proceeds through dynamic kinetic resolution that is unique to the optimal enzyme. To highlight its utility and practicality, the biocatalytic reaction was applied to the synthesis of several sp3-rich cyclic fragments and the first total synthesis of jomthonic acid A. The experimental process involved the reaction of (R)-Methyl 3-hydroxybutanoate(cas: 3976-69-0).Quality Control of (R)-Methyl 3-hydroxybutanoate

The Article related to branched aromatic amino acid diastereoselective enantioselective biocatalytic synthesis, ketoacid transamination amino acid catalyst dynamic kinetic resolution enzymic, stereoselective enzymic dynamic kinetic resolution reaction mechanism chirality, asymmetric synthesis, biocatalysis, dynamic kinetic resolution, noncanonical amino acids, transaminases and other aspects.Quality Control of (R)-Methyl 3-hydroxybutanoate

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

On November 15, 2020, Taoda, Yoshiyuki; Miyagawa, Masayoshi; Akiyama, Toshiyuki; Tomita, Kenji; Hasegawa, Yasushi; Yoshida, Ryu; Noshi, Takeshi; Shishido, Takao; Kawai, Makoto published an article.Safety of Ethyl 3-fluoro-2-methylbenzoate The title of the article was Dihydrodibenzothiepine: Promising hydrophobic pharmacophore in the influenza cap-dependent endonuclease inhibitor. And the article contained the following:

This work describes a set of discovery research studies of an influenza cap-dependent endonuclease (CEN) inhibitors with a carbamoyl pyridone bicycle (CAB) scaffold, particularly dibenzothiepine-substituted pyridotriazinediones such as I. Using influenza CEN inhibitory activity, antiviral activity and pharmacokinetic (PK) parameters as indexes, structure activity relationships (SAR) studies were performed at the N-1 and N-3 positions on the CAB scaffold, which is a unique template to bind two metals. The hydrophobic substituent at the N-1 position is extremely important for CEN inhibitory activity and antiviral activity, and dihydrodibenzothiepine was the most promising pharmacophore. I showed potent virus titer reduction over oseltamivir phosphate in an in vivo mouse model. I served as the lead compound of baloxavir marboxil with a tricyclic scaffold, which was approved in Japan and the USA in 2018. The experimental process involved the reaction of Ethyl 3-fluoro-2-methylbenzoate(cas: 114312-57-1).Safety of Ethyl 3-fluoro-2-methylbenzoate

The Article related to dibenzothiepine substituted pyridotriazinedione preparation antiviral agent, structure pyridotriazinedione inhibition influenza cap dependent endonuclease, metabolism pharmacokinetics dibenzothiepine substituted pyridotriazinedione, cap-dependent endonuclease, carbamoyl pyridone, chelator, dihydrodibenzothiepine, hydrophobic pharmacophore, influenza and other aspects.Safety of Ethyl 3-fluoro-2-methylbenzoate

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

On October 8, 2009, Matsunaga, Nobuyuki; Nakada, Yoshihisa; Ohba, Yusuke; Nakagawa, Hideyuki published a patent.Quality Control of Ethyl 3-fluoro-4-methylbenzoate The title of the patent was Preparation of pyrazole-containing heterocyclic compound derivatives as soluble guanylyl cyclase (sGC) activators. And the patent contained the following:

The title compounds [I; ring A1 = each (un)substituted aromatic hydrocarbon or 5- or 6-membered aromatic heterocyclic ring; ring B1 = each (un)substituted 5-membered aromatic heterocyclic ring or 5-membered aromatic heterocyclic ring- or 5- or 6-membered carbocyclic ring-fused heterocyclic ring; D1 = each (un)substituted aromatic hydrocarbon or aromatic heterocyclic ring; R1 = CO2H, tetrazolyl, oxooxadiazolyl, C(O)NHS(O)2R11; R11 = acyl, each (un)substituted lower alkyl or aromatic hydrocarbyl or 5- or 6-membered aromatic heterocyclyl; X1 = a bond, (un)substituted lower alkylene; Y1 = a bond, (un)substituted lower alkylene, L1a-E1-L1b; L1a, L1b = a bond, (un)substituted lower alkylene; E1 = O, S, S(O)< S(O)2, C(O), each (un)substituted NH, C(O)NH, NHC(O), S(O)NH, or NHS(O)2; some provisos are applied.] or salts thereof or prodrugs thereof were prepares There is specifically disclosed an soluble guanylyl cyclase (sGC) activator comprising the compound I or a salt thereof as an active ingredient. The compounds I are soluble guanylyl cyclase (sGC) activators and are useful for the prevention or treatment of diseases including hypertension, ischemic heart diseases, heart failure, kidney diseases, arteriosclerotic diseases, atrial fibrillation, pulmonary hypertension, diabetes, diabetic complications, metabolic syndrome, peripheral arterial disease and erectile dysfunction. They have excellent pharmacol. activities, excellent physicochem. properties, and others. Thus, a solution of 2.99 g Et 1-(2-amino-2-thioxoethyl)-1H-pyrazole-4-carboxylate in 30 mL ethanol was treated with 3.74 g 2-bromo-1-[3-(trifluoromethyl)phenyl]ethanone and refluxed for 14 h to give, after workup and silica gel chromatog., 91% Et 1-([4-[3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl]methyl)-1H-pyrazole-4-carboxylate (II). II (4.80 g) was treated with 40 mL ethanol, 10 mL THF, and 12.6 mL 2 N aqueous NaOH solution, stirred overnight, concentrated under reduced pressure, treated with water, washed with ether, and acidified with 6 N aqueous HCl solution to give, after workup and recrystallization from EtOAc and hexane, 67% 1-([4-[3-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl]methyl)-1H-pyrazole-4-carboxylic acid (III). III in vitro promoted >1,000% the production of cGMP from guanosine 6′-triphosphate in the presence of sGC. III at 30 mg/kg in vivo lowered blood pressure by 15.5 mmHg in male SHR mice after 5 h. A capsule formulation containing III was described. The experimental process involved the reaction of Ethyl 3-fluoro-4-methylbenzoate(cas: 86239-00-1).Quality Control of Ethyl 3-fluoro-4-methylbenzoate

The Article related to thiazolylmethylpyrazolecarboxylic acid preparation soluble guanylyl cyclase activator, pyrazole containing heterocyclic preparation soluble guanylyl cyclase sgc activator, hypertension ischemic heart disease treatment pyrazole containing heterocyclic preparation, heart failure kidney disease treatment pyrazole containing heterocyclic preparation and other aspects.Quality Control of Ethyl 3-fluoro-4-methylbenzoate

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