Tag: M.W=150-200

Name: 4-Nitrobenzoic acid. In 2019.0 TETRAHEDRON published article about FACILE SYNTHESIS; RECEPTOR ANTAGONIST; EFFICIENT SYNTHESIS; COUPLING REACTION; DERIVATIVES; CYCLIZATION; ACCESS; SERIES; ROUTE; CELLS in [Xiong, Jun; Wei, Xiao; Wan, Yu-Chen; Ding, Ming-Wu] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Hubei Int Sci & Technol Cooperat Base Pesticide &, Wuhan, Hubei, Peoples R China; [Xiong, Jun] Hubei Univ Sci & Technol, Coll Pharm, Xianning 437100, Hubei, Peoples R China in 2019.0, Cited 59.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

An efficient one-pot and regioselective synthesis of 3,4-dihydroquinazolines and 4,5-dihydro-3H-1,4-benzodiazepin-3-ones by Ugi/Staudinger/aza-Wittig sequence has been developed. The Ugi reactions of 2-azidobenzylamines, aldehydes, acids (or alpha-keto acids) and isocyanides produced the azide intermediates, which were then treated with tributylphosphine or triphenylphosphine to give poly-substituted 3,4-dihydroquinazolines or 4,5-dihydro-3H-1,4-benzodiazepin-3-ones in moderate to good yields by tandem Standinger/aza-Wittig reactions. (C) 2019 Elsevier Ltd. All rights reserved.

Welcome to talk about 62-23-7, If you have any questions, you can contact Xiong, J; Wei, X; Wan, YC; Ding, MW or send Email.. Name: 4-Nitrobenzoic acid

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Chemical modifications of G418 (geneticin): Synthesis of novel readthrough aminoglycosides results in an improved in vitro safety window but no improvements in vivo WOS:000560727400005 published article about ZEBRAFISH; LINE in [Baiazitov, Ramil Y.; Friesen, Westley; Johnson, Briana; Mollin, Anna; Sheedy, Josephine; Sierra, Jairo; Weetall, Marla; Branstrom, Arthur; Welch, Ellen; Moon, Young-Choon] PTC Therapeut Inc, 100 Corp Court, South Plainfield, NJ 07080 USA in 2020.0, Cited 23.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Quality Control of 4-Nitrobenzoic acid

G418 is currently the most potent and active aminoglycoside to promote readthrough of eukaryotic nonsense mutations. However, owing to its toxicity G418 cannot be used in vivo to study readthrough activity A robust and scalable method for selective derivatization of G418 was developed to study the biological activity and toxicity of a series of analogs. Despite our synthetic efforts, an improvement in readthrough potency was not achieved. We discovered several analogs that demonstrated reduced zebra fish hair cell toxicity (a surrogate for ototoxicity), but this reduction in cellular toxicity did not translate to reduced in vivo toxicity in rats.

Quality Control of 4-Nitrobenzoic acid. Welcome to talk about 62-23-7, If you have any questions, you can contact Baiazitov, RY; Friesen, W; Johnson, B; Mollin, A; Sheedy, J; Sierra, J; Weetall, M; Branstrom, A; Welch, E; Moon, YC or send Email.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Recently I am researching about CROSS-COUPLINGS; ENANTIOSELECTIVE ADDITION; ESTERIFICATION; ACTIVATION; CONVERSION; REAGENTS; ALKENES, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21931010]; National Key Research and Development Program of China [2017YFA0207302]; Program for Changjiang Scholars and Innovative Research Team in University of the Ministry of Education, China. Published in SCIENCE PRESS in BEIJING ,Authors: Chen, H; Chen, DH; Huang, PQ. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid. Formula: C7H5NO4

N-Acylpyrrole-type amides are a class of versatile building blocks in asymmetric synthesis. We report that by employing Ni(COD)(2)/2,2 ‘-bipyridine (5 mol%) catalytic system, the direct, catalytic alcoholysis of N-acylpyrrole-type aromatic and aliphatic amides with both primary and secondary alcohols can be achieved efficiently under very mild conditions (rt, 1 h) even at gram scale. By increasing the catalyst loading to 10 mol%, prolonging reaction time (18 h), and/or elevating reaction temperature to 50 degrees C/80 degrees C, the reaction could be extended to both complex and hindered N-acylpyrroles as well as to N-acylpyrazoles, Nacylindoles, and to other (functionalized) primary and secondary alcohols. In all cases, only 1.5 equiv. of alcohol were used. The value of the method has been demonstrated by the racemization-free, catalytic alcoholysis of chiral amides yielded from other asymmetric methodologies.

Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Chen, H; Chen, DH; Huang, PQ or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Synthesis of Dithiolethiones and Identification of Potential Neuroprotective Agents via Activation of Nrf2-Driven Antioxidant Enzymes WOS:000515216200046 published article about CUL3-BASED E3 LIGASE; OXIDATIVE STRESS; THERAPEUTIC TARGET; PC12 CELLS; NEURODEGENERATIVE DISEASES; MITOCHONDRIAL DYSFUNCTION; KEAP1-NRF2-ARE PATHWAY; BIOLOGICAL EVALUATION; HYDROGEN-PEROXIDE; CANCER PREVENTION in [Song, Zi-Long; Bai, Feifei; Zhang, Baoxin; Fang, Jianguo] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China; [Song, Zi-Long; Bai, Feifei; Zhang, Baoxin; Fang, Jianguo] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China in 2020, Cited 70. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Safety of 4-Nitrobenzoic acid

Oxidative stress is implicated in the pathogenesis of a wide variety of neurodegenerative disorders, and accordingly, dietary supplement of exogenous antioxidants or/and upregulation of the endogenous antioxidant defense system are promising for therapeutic intervention or chemoprevention of neurodegenerative diseases. Nrf2, a master regulator of the cellular antioxidant machinery, cardinally participates in the transcription of cytoprotective genes against oxidative/electrophilic stresses. Herein, we report the synthesis of 59 structurally diverse dithiolethiones and evaluation of their neuroprotection against 6-hydroxydopamine- or H2O2 -induced oxidative damages in PC12 cells, a neuron-like rat pheochromocytoma cell line. Initial screening identified compounds 10 and 11 having low cytotoxicity but conferring remarkable protection on PC12 cells from oxidative-mediated damages. Further studies demonstrated that both compounds upregulated a battery of antioxidant genes as well as corresponding genes’ products. Significantly, silence of Nrf2 expression abolishes cytoprotection of 10 and 11, indicating targeting Nrf2 activation is pivotal for their cellular functions. Taken together, the two lead compounds discovered here with potent neuroprotective functions against oxidative stress via Nrf2 activation merit further development as therapeutic or chemopreventive candidates for neurodegenerative disorders.

Safety of 4-Nitrobenzoic acid. About 4-Nitrobenzoic acid, If you have any questions, you can contact Song, ZL; Bai, FF; Zhang, BX; Fang, JG or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Safety of 4-Nitrobenzoic acid. Recently I am researching about CHARGE-TRANSPORT PROPERTIES; PLATELET-AGGREGATION; MOLECULAR DOCKING; CROSS-TALK; ANTIOXIDANTS; RESONANCE; ASPIRIN; DRUGS, Saw an article supported by the Higher Education Commission of PakistanHigher Education Commission of Pakistan; Deanship of Scientific Research at King KhalidUniversity [R.G.P.2/15/40]. Published in WALTER DE GRUYTER GMBH in BERLIN ,Authors: Ramzan, A; Nazeer, A; Irfan, A; Al-Sehemi, AG; Verpoort, F; Khatak, ZA; Ahmad, A; Munawar, MA; Khan, MA; Basra, MAR. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid

A novel series of 2-(3-methyl-1,6-diphenyl-1H-pyrazolo[3,4-b]pyridin4-yl)-5-aryl-1,3,4-oxadiazoles (4a-4h) has been synthesized from corresponding hydrazones (3a-3h) and evaluated their antiplatelet aggregation effect induced by arachidonic acid and collagen. Spectral data and elemental evaluation were used to confirm the structure of the compounds while molecular docking against cyclooxygenase 1 and 2 (COX1 & COX2) and quantitative structure-activity relationship (QSAR) were performed in describing their antiplatelet potential. All synthesized compound exhibited more than 50% platelet aggregation inhibition against both arachidonic acid and collagen. Antiplatelet activities results showed that 4b and 4f compounds have highest % inhibition against arachidonic acid. High Egap and ionization potential values showed that the compound 4d, 4e and 4f were supposed to be more active and good electron donor while 4b, 4c, 4d, 4e, 4g and 4h might be more active due to more electrophilic sites. Interaction with more than one residues in the binding pocket of COX-1 in comparison with aspirin and ligand efficacy (LE) consequences showed that compounds have excellent action potential for COX-1. Computational evaluations are in good agreement with antiplatelet activities of the compounds. All compounds might be promising antiplatelet agents especially 4b, 4f and helpful in the synthesis of new drugs for the treatment of cardiovascular diseases (CVDs).

Safety of 4-Nitrobenzoic acid. Welcome to talk about 62-23-7, If you have any questions, you can contact Ramzan, A; Nazeer, A; Irfan, A; Al-Sehemi, AG; Verpoort, F; Khatak, ZA; Ahmad, A; Munawar, MA; Khan, MA; Basra, MAR or send Email.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Synthetic aluminosilicate based geopolymers – Second generation geopolymer HPLC stationary phases WOS:000482179800023 published article about INTERACTION LIQUID-CHROMATOGRAPHY; POROUS GRAPHITIC CARBON; RETENTION BEHAVIOR; PERFORMANCE; METAKAOLIN; COLUMNS; SELECTIVITY; SUSPENSION; PACKING; MODE in [Thakur, Nimisha; Wahab, M. Farooq; Khanal, Durga D.; Armstrong, Daniel W.] Univ Arlington, Dept Chem & Biochem, Arlington, TX 76019 USA in 2019.0, Cited 46.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7. Quality Control of 4-Nitrobenzoic acid

A survey of existing stationary phases classified by the United States Pharmacopeia reveals that 120 groups of chromatographic supports mostly utilize silica-silane chemistry, polymeric materials along with some niche metal oxides. In this work, the synthesis and characterization of transition-metal free geopolymers as a new class of stationary phases for hydrophilic interaction liquid chromatography and normal phase separations is reported. The geopolymers were synthesized by reaction of synthetic aluminosilicate with potassium silicate (fumed silica dissolved in KOH) in a water-in-oil emulsion. For comparative purposes of peak shapes, a geopolymer from natural metakaolin was also synthesized. The geopolymers were examined by X-ray diffraction, energy dispersive spectroscopy, laser diffraction, and N-2-adsorption isotherms. This two-step approach gives spherical microparticles with surface area and pore size comparable to silica phases (150 m(2)/g and 120 angstrom respectively). Both synthetic aluminosilicates based and natural metakaolin based geopolymers occupy a unique spot in the HILIC selectivity chart when compared to 35 HILIC phases. An additional promising feature of geopolymers is high pH and temperature stability which are used to tune selectivity for small polar analytes. High pH separations are shown with carboxylic acids. Geopolymers also show mixed mode behavior in retention with ion-exchange properties in purely aqueous mobile phases. The separation of derivatized sugars is demonstrated and compared with porous graphitic carbon (Hypercarb (TM)) as another pH-stable stationary phase. (C) 2019 Elsevier B.V. All rights reserved.

Quality Control of 4-Nitrobenzoic acid. About 4-Nitrobenzoic acid, If you have any questions, you can contact Thakur, N; Wahab, MF; Khanal, DD; Armstrong, DW or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Yoneyama, H; Oka, N; Usami, Y; Harusawa, S in [Yoneyama, Hiroki; Oka, Naoki; Usami, Yoshihide; Harusawa, Shinya] Osaka Univ Pharmaceut Sci, 4-20-1 Nasahara, Takatsuki, Osaka 5691094, Japan published A novel synthetic method of 2,4-disubstituted oxazoles using carboxylic acid-derived Bu2Sn[OC(O)R](2) in 2020, Cited 31. Name: 4-Nitrobenzoic acid. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

A novel synthetic method for the preparation of 2,4-disubstituted oxazoles was developed, entailing the reaction of dibutyltin diacylates Bu2Sn[OC(O)R](2) with 1-substituted acetylenes and TMSN3 to afford a range of 2,4-disubstituted oxazoles in good yields. (C) 2020 Elsevier Ltd. All rights reserved.

Name: 4-Nitrobenzoic acid. About 4-Nitrobenzoic acid, If you have any questions, you can contact Yoneyama, H; Oka, N; Usami, Y; Harusawa, S or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

Recently I am researching about CARBOXYLIC-ACID SALTS; CP-H BONDS; PRIMARY ALCOHOLS; UNACTIVATED C(SP(3))-H; AEROBIC OXIDATION; WATER; AMINES; ESTERIFICATION; ALKYLATION; CONVERSION, Saw an article supported by the DST of India [DST EMR/2015/000285]; UGC, IndiaUniversity Grants Commission, India; Indian Institute of Technology Delhi; DST-FISTDepartment of Science & Technology (India); IIT D. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Dolui, P; Hazra, S; Deb, M; Elias, AJ. The CAS is 62-23-7. Through research, I have a further understanding and discovery of 4-Nitrobenzoic acid. Formula: C7H5NO4

Picolinamide group assisted sp(3) C-H bond oxidation of methylene groups to the corresponding carbonyl compounds has been achieved by using simple bottle ferrocene as catalyst and Cu(OAc)(2) or tert-butyl peroxybenzoate (TBPB) as oxidant under mild conditions. This method is applicable for picolinamide bound organic as well as organometallic compounds with yields in the range of 46-82%. Control experiments and mechanistic studies indicate that a radical mechanism is responsible for these oxidative transformations in which ferrocene acts as a catalyst.

Formula: C7H5NO4. Welcome to talk about 62-23-7, If you have any questions, you can contact Dolui, P; Hazra, S; Deb, M; Elias, AJ or send Email.

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Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

An article Topology-Controlled Selective Fe3+ Binding in Water by delta-Peptides with a Dihydropyrimidinone-Containing Amino Acid WOS:000518701900044 published article about FLUORESCENT SENSORS; RECENT PROGRESS; SMALL MOLECULES; ENERGY-TRANSFER; METAL-IONS; IRON; NANOPARTICLES; CHEMOSENSORS; PROBES; FOLDAMERS in [Podder, Debasish; Sasmal, Supriya; Konar, Sukanya; Ghorai, Pradip Kumar; Haldar, Debasish] Indian Inst Sci Educ & Res Kolkata, Dept Chem Sci, Mohanpur 741246, W Bengal, India in 2020.0, Cited 58.0. Safety of 4-Nitrobenzoic acid. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7

The effect of topology on the structure, self-assembly, and selective Fe3+ binding of delta-peptides has been investigated. A series of delta-peptides with an amino acid containing dihydropyrimidinone and o-, m-, and p-aminobenzoic acids have been designed to study the structure-function relationship. A new amino acid containing dihydropyrimidinone was synthesized by the Biginelli reaction of ethyl acetoacetate, urea, and o-nitrobenzaldehyde followed by reduction with iron powder and acetic acid. X-ray crystallography sheds some light on the conformations, self-assembly, and the diverse degrees of pi-pi stacking of adjacent delta-peptide molecules. Peptides with o- or m-aminobenzoic acid form eight-membered intramolecular hydrogen-bonded turn conformations and self-assemble through intermolecular hydrogen bonds between dihydropyrimidinone units to form a butterfly-like structure. However, the delta-peptide containing p-aminobenzoic acid forms a water-mediated cage-like structure. Irrespective of the presence of the same functional groups, only the delta-peptide with o-aminobenzoic acid can selectively bind Fe3+ in methanol as well as in water. The topology plays a crucial role in the selective Fe3+ ion binding by the delta-peptide.

Safety of 4-Nitrobenzoic acid. About 4-Nitrobenzoic acid, If you have any questions, you can contact Podder, D; Sasmal, S; Konar, S; Ghorai, PK; Haldar, D or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem

HPLC of Formula: C7H5NO4. In 2020.0 ACS MED CHEM LETT published article about HISTONE DEACETYLASE INHIBITOR; ACCURATE DOCKING; IN-VITRO; GLIDE; RICOLINOSTAT; MODEL; CELL in [Shouksmith, Andrew E.; Gawel, Justyna M.; Nawar, Nabanita; Sina, Diana; Raouf, Yasir S.; Bukhari, Shazreh; He, Liying; Johns, Alexandra E.; Manaswiyoungkul, Pimyupa; Olaoye, Olasunkanmi O.; Cabral, Aaron D.; Sedighi, Abootaleb; de Araujo, Elvin D.; Gunning, Patrick T.] Univ Toronto Mississauga, Dept Chem & Phys Sci, 3359 Mississauga Rd, Mississauga, ON L5L 1C6, Canada in 2020.0, Cited 25.0. The Name is 4-Nitrobenzoic acid. Through research, I have a further understanding and discovery of 62-23-7.

The HDAC inhibitor 4-tert-butyl-N-(4-(hydroxycarbamoyl)phenyl)benzamide (AES-350, 51) was identified as a promising preclinical candidate for the treatment of acute myeloid leukemia (AML), an aggressive malignancy with a meagre 24% 5-year survival rate. Through screening of low-molecular-weight analogues derived from the previously discovered novel HDAC inhibitor, AES-135, compound 51 demonstrated greater HDAC isoform selectivity, higher cytotoxicity in MV4-11 cells, an improved therapeutic window, and more efficient absorption through cellular and lipid membranes. Compound 51 also demonstrated improved oral bioavailability compared to SAHA in mouse models. A broad spectrum of experiments, including FACS, ELISA, and Western blotting, were performed to support our hypothesis that 51 dose-dependently triggers apoptosis in AML cells through HDAC inhibition.

HPLC of Formula: C7H5NO4. About 4-Nitrobenzoic acid, If you have any questions, you can contact Shouksmith, AE; Gawel, JM; Nawar, N; Sina, D; Raouf, YS; Bukhari, S; He, LY; Johns, AE; Manaswiyoungkul, P; Olaoye, OO; Cabral, AD; Sedighi, A; de Araujo, ED; Gunning, PT or concate me.

Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem