Month: October 2021

I found the field of Chemistry very interesting. Saw the article Development of a Large-Scale Route to Glecaprevir: Synthesis of the Macrocycle via Intramolecular Etherification published in 2020.0. HPLC of Formula: C13H13N, Reprint Addresses Cink, RD (corresponding author), AbbVie Inc, Proc Res & Dev, N Chicago, IL 60064 USA.. The CAS is 91-00-9. Through research, I have a further understanding and discovery of Diphenylmethanamine

Glecaprevir was identified as a potent hepatitis C virus (HCV) protease inhibitor, and a large-scale synthesis was required to support the late-stage clinical trials and subsequent commercial launch. The large-scale synthetic route to glecaprevir required the development of completely new synthetic approaches to the two key structural features: the 18-membered macrocycle 3 and the difluoromethyl-substituted cyclopropyl amino acid 4. In this first manuscript, we describe the route development for the macrocycle 3; the second manuscript will describe the development of a new synthetic route to the difluoromethyl-substituted cyclopropyl amino acid 4 and the final assembly of glecaprevir. The large-scale synthetic route to the macrocycle employed a unique intramolecular etherification reaction as the key step in the macrocycle synthesis, avoiding the scalability limitations of the ring-closing metathesis (RCM) reaction of the enabling route. The large-scale synthetic route to the macrocycle was successfully used to produce the amount of glecaprevir required to support the late-stage clinical development.

About Diphenylmethanamine, If you have any questions, you can contact Kallemeyn, JM; Engstrom, KM; Pelc, MJ; Lukin, KA; Morrill, WH; Wei, HJ; Towne, TB; Henle, J; Nere, NK; Welch, DS; Shekhar, S; Ravn, MM; Zhao, G; Fickes, MG; Ding, C; Vinci, JC; Marren, J; Cink, RD or concate me.. HPLC of Formula: C13H13N

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

Formula: C8H11NO. Authors Fronczak, M; Kasprzak, A; Bystrzejewski, M in ELSEVIER SCI LTD published article about in [Fronczak, Maciej; Bystrzejewski, Michal] Univ Warsaw, Fac Chem, Pasteura 1 Str, PL-02093 Warsaw, Poland; [Fronczak, Maciej] Lodz Univ Technol, Fac Proc & Environm Engn, Wolczanska 213 Str, PL-90924 Lodz, Poland; [Kasprzak, Artur] Warsaw Univ Technol, Fac Chem, Noakowskiego 3 Str, PL-00664 Warsaw, Poland in 2021.0, Cited 39.0. The Name is 2-(4-Aminophenyl)ethanol. Through research, I have a further understanding and discovery of 104-10-9

A novel easy-to-prepare magnetic catalyst, composed of palladium nanoparticles supported on surface-oxidized carbon-encapsulated iron nanoparticles, has been synthesized. The synthesis involved the reduction of palladium precursor in the presence of magnetic core-shell nanomaterial. The size of the palladium nanoparticles distributed over the support does not exceed 15 nm. The catalytic performance of this composite material was tested in hydrogenation of seven various nitro compounds to the respective amino derivatives. The composite exhibits excellent catalytic activity and can be easily separated from the reaction mixture after the reaction. The determined reaction yields were above 90 % and this value was not worsened even after ten cycles, for the case of hydrogenation of nitrobenzene. Importantly, the method is chromatography-free and employs the ammonium formate as a hydrogen source, which makes the herein presented protocol safer in comparison with the previously reported reductions in which highly dangerous gaseous hydrogen was used.

Formula: C8H11NO. About 2-(4-Aminophenyl)ethanol, If you have any questions, you can contact Fronczak, M; Kasprzak, A; Bystrzejewski, M or concate me.

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

Recently I am researching about IMAGING AGENTS, Saw an article supported by the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences [CIFMS 2016-I2M-3-022, 2017-I2M-3-019]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [3332018117]; Science and Technology Project of Tianjin, China [18ZXXYSY00110]; Natural Science Foundation of Tianjin, ChinaNatural Science Foundation of Tianjin [18JCQNJC09500]. Safety of 2-(4-Aminophenyl)ethanol. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Jia, JH; Wei, HQ; Duan, YQ; Ning, HX; Yu, J; Zhu, Y; Hou, WB; Li, YL. The CAS is 104-10-9. Through research, I have a further understanding and discovery of 2-(4-Aminophenyl)ethanol

An improved five-step synthesis of triethylene glycol-substituted 4-(N-methyl-N-Boc-amino)styrylpyridine (6) is described. Using cost-effective starting materials, the developed synthesis route was synthetic, efficient, and chromatographic purification-free. The key point of the work is the one-pot synthesis of tert-butyl methyl(4-vinylphenyl)carbamate through methylation and elimination in the NaH/THF system. The new synthesis route shows the potential to achieve scaled-up preparation of 6 in the future.

About 2-(4-Aminophenyl)ethanol, If you have any questions, you can contact Jia, JH; Wei, HQ; Duan, YQ; Ning, HX; Yu, J; Zhu, Y; Hou, WB; Li, YL or concate me.. Safety of 2-(4-Aminophenyl)ethanol

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

Quality Control of 2-(4-Aminophenyl)ethanol. Ibric, A; Battisti, V; Deckardt, S; Haller, AV; Lee, C; Protsch, C; Langer, T; Heffeter, P; Schueffl, HH; Marian, B; Haider, N in [Ibric, Amra; Battisti, Verena; Deckardt, Sophie; Haller, Anna Veronika; Lee, Calvin; Proetsch, Corinna; Langer, Thierry; Haider, Norbert] Univ Vienna, Dept Pharmaceut Chem, Althanstr 14, A-1090 Vienna, Austria; [Heffeter, Petra; Schueffl, Hemma Henrike; Marian, Brigitte] Med Univ Vienna, Inst Canc Res, Borschkegasse 8a, A-1090 Vienna, Austria; [Heffeter, Petra; Schueffl, Hemma Henrike; Marian, Brigitte] Med Univ Vienna, Comprehens Canc Ctr, Borschkegasse 8a, A-1090 Vienna, Austria published A-ring and E-ring modifications of the cytotoxic alkaloid Luotonin A: Synthesis, computational and biological studies in 2020.0, Cited 56.0. The Name is 2-(4-Aminophenyl)ethanol. Through research, I have a further understanding and discovery of 104-10-9.

A series of new Luotonin A derivatives with substituents at rings A and E was synthesized, together with some E-ring-unsubstituted derivatives. Subsequently, the compound library was examined in silico for their binding into a previously proposed site in the DNA/topoisomerase I binary complex. Whereas no convincing correlation between docking scores and biological data from in vitro assays could be found, one novel 4,9-diamino Luotonin A derivative had strong antiproliferative activity based on massive G2/M phase arrest. As this biological activity clearly differs from the reference compound Camptothecin, this strongly indicates that at least some Luotonin A derivatives may be potent antiproliferative agents, however with a different mode of action.

Quality Control of 2-(4-Aminophenyl)ethanol. About 2-(4-Aminophenyl)ethanol, If you have any questions, you can contact Ibric, A; Battisti, V; Deckardt, S; Haller, AV; Lee, C; Protsch, C; Langer, T; Heffeter, P; Schueffl, HH; Marian, B; Haider, N or concate me.

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

HPLC of Formula: C8H11NO. Sarkar, S; Sarkar, P; Ghosh, P in [Sarkar, Sayan; Sarkar, Piyali; Ghosh, Pradyut] Indian Assoc Cultivat Sci, Sch Chem Sci, Kolkata 700032, India published Heteroditopic Macrobicyclic Molecular Vessels for Single Step Aerial Oxidative Transformation of Primary Alcohol Appended Cross Azobenzenes in 2021.0, Cited 101.0. The Name is 2-(4-Aminophenyl)ethanol. Through research, I have a further understanding and discovery of 104-10-9.

A series of oxy-ether tris-amino heteroditopic macrobicycles (L1-L4) with various cavity dimensions have been synthesized and explored for their Cu(II) catalyzed selective single step aerial oxidative cross-coupling of primary alcohol based anilines with several aromatic amines toward the formation of primary alcohol appended cross azobenzenes (POCABs). The beauty of this transformation is that the easily oxidizable benzyl/primary alcohol group remains unhampered during the course of this oxidation due to the protective oxy-ether pocket of this series of macrobicyclic vessels. Various dimensionalities of the molecular vessels have shown specific size complementary selection for substrates toward efficient syntheses of regioselective POCAB products. To establish the requirement of the three-dimensional cavity based additives, a particular catalytic reaction has been examined in the presence of macrobicycles (L2 and L3) versus macrocycles (MC1 and MC2) and tripodal acyclic (AC1 and AC2) analogous components, respectively. Subsequently, L1-L4 have been extensively utilized toward the syntheses of as many as 44 POCABs and are characterized by different spectroscopic techniques and single crystal X-ray diffraction studies.

HPLC of Formula: C8H11NO. About 2-(4-Aminophenyl)ethanol, If you have any questions, you can contact Sarkar, S; Sarkar, P; Ghosh, P or concate me.

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

Recommanded Product: 90-16-4. Recently I am researching about BIOLOGICAL-ACTIVITIES; MANNICH-BASES; DESIGN; ANTIFUNGAL; FLUORINE; PRODUCT; ANALOGS, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21672061]; National Key Research Program of China [2017YFD0200505, 2018YFD0200105]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [222201718004]. Published in ELSEVIER SCIENCE INC in NEW YORK ,Authors: Chen, XL; Jia, HW; Li, Z; Xu, XY. The CAS is 90-16-4. Through research, I have a further understanding and discovery of Benzo[d][1,2,3]triazin-4(3H)-one

To explore new skeleton with nematicidal activity, a series of novel 1,2,3-benzotriazin-4-one derivatives containing piperazine as linker were synthesized and varied fragments were also introduced to increase structure diversity of the new skeleton. Their inhibitory activities in vivo were evaluated against Meloidogyne incognita. The newly prepared compounds A6, A8, A21, A28 and A38 exhibited more than 50% inhibition at the concentration of 20 mg/L. Especially compound A6 displayed 71.4% inhibition against Meloidogyne incognita at the concentration of 20 mg/L. The nematicidal activities varied significantly depending on the types and positions of the substituents, which provided guidance for further structure modification. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

Recommanded Product: 90-16-4. About Benzo[d][1,2,3]triazin-4(3H)-one, If you have any questions, you can contact Chen, XL; Jia, HW; Li, Z; Xu, XY or concate me.

Reference:
Patent; Guizhou University; Xue Wei; Zhang Juping; Zhang Cheng; Chen Lijuan; Wang Yihui; Li Pu; Li Qin; Ruan Xianghui; Wang Xiaobin; Wu Xiaoqiong; Wang Jun; (24 pag.)CN107602493; (2019); B;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Tong, S; Wang, MX in [Tong, Shuo; Wang, Mei-Xiang] Tsinghua Univ, Dept Chem, MOE Key Lab Bioorgan Phosphorous Chem & Chem Biol, Beijing 100084, Peoples R China published Catalytic Enantioselective Synthesis of 4-Amino-1,2,3,4-tetrahydropyridine Derivatives from Intramolecular Nucleophilic Addition Reaction of Tertiary Enamides in 2019.0, Cited 54.0. Category: amides-buliding-blocks. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

A general and efficient method for the synthesis of highly enantiopure 4-amino-1,2,3,4-tetradydropyridine derivatives based on chiral phosphoric acid catalyzed intramolecular nucleophilic addition of tertiary enamides to imines has been developed. We have also demonstrated a substrate engineering strategy to significantly improve the enantioselectivity of asymmetric catalysis

Category: amides-buliding-blocks. About Diphenylmethanamine, If you have any questions, you can contact Tong, S; Wang, MX or concate me.

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

An article Uniform Cu/chitosan beads as a green and reusable catalyst for facile synthesis of imines via oxidative coupling reaction WOS:000540547000064 published article about HETEROGENEOUS CATALYST; METAL-FREE; FUNCTIONALIZED-CHITOSAN; EFFICIENT CATALYST; AEROBIC OXIDATION; COPPER CATALYST; PRIMARY AMINES; BENZYLAMINES; COMPLEXES; AMBIENT in [Chutimasakul, Threeraphat; Nakhonpanom, Pakamon Na; Tirdtrakool, Warinda; Intanin, Apichai; Bunchuay, Thanthapatra; Chantiwas, Rattikan; Tantirungrotechai, Jonggol] Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Dept Chem, Bangkok 10400, Thailand in 2020.0, Cited 52.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9. Computed Properties of C13H13N

A nonprecious metal and biopolymer-based catalyst, Cu/chitosan beads, has been successfully prepared by using a software-controlled flow system. Uniform, spherical Cu/chitosan beads can be obtained with diameters in millimeter-scale and narrow size distribution (0.78 +/- 0.04 mm). The size and morphology of the Cu/chitosan beads are reproducible due to high precision of the flow rate. In addition, the application of the Cu/chitosan beads as a green and reusable catalyst has been demonstrated using a convenient and efficient protocol for the direct synthesis of imines via the oxidative self- and cross-coupling of amines (24 examples) with moderate to excellent yields. Importantly, the beads are stable and could be reused more than ten times without loss of the catalytic performance. Furthermore, because of the bead morphology, the Cu/chitosan catalyst has greatly simplified recycling and workup procedures.

About Diphenylmethanamine, If you have any questions, you can contact Chutimasakul, T; Nakhonpanom, PN; Tirdtrakool, W; Intanin, A; Bunchuay, T; Chantiwas, R; Tantirungrotechai, J or concate me.. Computed Properties of C13H13N

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

Recommanded Product: Diphenylmethanamine. In 2021.0 CHEMMEDCHEM published article about CORONAVIRUS PAPAIN-LIKE; RESPIRATORY SYNDROME CORONAVIRUS; PNEUMONIA in [Welker, Armin; Sotriffer, Christoph] Justus Maximilians Univ Wurzburg, Inst Pharm & Food Chem, D-97074 Wurzburg, Germany; [Kersten, Christian; Zimmer, Collin; Mueller, Patrick; Zimmermann, Robert; Hammerschmidt, Stefan; Maus, Hannah; Schirmeister, Tanja] Johannes Gutenberg Univ Mainz, Inst Pharmaceut & Biomed Sci, Staudingerweg 5, D-55128 Mainz, Germany; [Mueller, Christin; Madhugiri, Ramakanth; Ziebuhr, John] Justus Liebig Univ Giessen, Inst Med Virol, Schubertstr 81, D-35392 Giessen, Germany in 2021.0, Cited 29.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

Inhibition of coronavirus (CoV)-encoded papain-like cysteine proteases (PLpro) represents an attractive strategy to treat infections by these important human pathogens. Herein we report on structure-activity relationships (SAR) of the noncovalent active-site directed inhibitor (R)-5-amino-2-methyl-N-(1-(naphthalen-1-yl)ethyl) benzamide (2 b), which is known to bind into the S3 and S4 pockets of the SARS-CoV PLpro. Moreover, we report the discovery of isoindolines as a new class of potent PL(pro)inhibitors. The studies also provide a deeper understanding of the binding modes of this inhibitor class. Importantly, the inhibitors were also confirmed to inhibit SARS-CoV-2 replication in cell culture suggesting that, due to the high structural similarities of the target proteases, inhibitors identified against SARS-CoV PL(pro)are valuable starting points for the development of new pan-coronaviral inhibitors.

Recommanded Product: Diphenylmethanamine. About Diphenylmethanamine, If you have any questions, you can contact Welker, A; Kersten, C; Muller, C; Madhugiri, R; Zimmer, C; Muller, P; Zimmermann, R; Hammerschmidt, S; Maus, H; Ziebuhr, J; Sotriffer, C; Schirmeister, T or concate me.

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

An article Hexokinase II Inhibitory Effect of Secondary Metabolites Derived from a Streptomyces sp. Associated with Mud Dauber Wasp WOS:000538917100001 published article about BACTERIAL SYMBIONTS; GLYCOLYSIS; CANCER; GERMINATION; ANSAMYCIN; PROVIDE in [Zhang, Xiu-Mei; Wang, Mei; Zheng, Dan; Feng, Ming-Kuan] Shandong Drug & Food Vocat Coll, Dept Pharm, Weihai 264210, Peoples R China; [Peng, Ai-Hong; Xie, Wei-Dong] Shandong Univ, Coll Marine Sci, Dept Pharm, Weihai 264209, Peoples R China in 2020, Cited 43. Formula: C7H5N3O. The Name is Benzo[d][1,2,3]triazin-4(3H)-one. Through research, I have a further understanding and discovery of 90-16-4

Insect-microbial symbioses have vast biochemical diversity, which is beneficial to produce bioactive secondary metabolites. In this study, chemical examination of a Streptomyces sp. associated with a mud dauber wasp led to the isolation of fourteen compounds. Their structures were determined by spectroscopic methods and comparison with literature data. Among the isolates, compounds 1,2,3-benzotriazin-4(1H)-one and 4-(2-aminoethyl)phenyl acetate were first reported from this species. Bioactivities of the isolated compounds were assayed for the first time against hexokinase II. 4-(2-Aminoethyl)phenyl acetate, germicidin B, phenylacetic acid, isogermicidin A and germicidin C displayed significant inhibitory activity against hexokinase II, with the IC50 values of 5.11, 7.11, 7.15, 8.45 and 8.78 mu M, respectively.

Formula: C7H5N3O. About Benzo[d][1,2,3]triazin-4(3H)-one, If you have any questions, you can contact Zhang, XM; Peng, AH; Xie, WD; Wang, M; Zheng, D; Feng, MK or concate me.

Reference:
Patent; Guizhou University; Xue Wei; Zhang Juping; Zhang Cheng; Chen Lijuan; Wang Yihui; Li Pu; Li Qin; Ruan Xianghui; Wang Xiaobin; Wu Xiaoqiong; Wang Jun; (24 pag.)CN107602493; (2019); B;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics