Tag: M.W=150-200

An article A novel method of temporary solidification and extraction of underwater fragile relics in their original state WOS:000589895000001 published article about IN-SITU PRESERVATION; CULTURAL-HERITAGE; CONSOLIDANT; CONSERVATION; MENTHOL in [Chen, Xue-Qiang; Zhang, Bingjian] Zhejiang Univ, Dept Cultural Heritage & Museol, Hangzhou 310028, Peoples R China; [Chen, Xue-Qiang] Ningbo Univ Finance & Econ, Cultural Property Protect Ctr, Ningbo 315175, Peoples R China; [Zhang, Zhiguo] Natl Ctr Underwater Cultural Heritage, Beijing 100192, Peoples R China in 2021.0, Cited 22.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9. COA of Formula: C9H10O3

Fragile cultural relics at underwater archaeological sites are difficult to preserve in situ over long time periods due to the effects of a complex and constantly changing surrounding environment. Thus, extracting the relics from water and preserving them in a controllable environment is of primary importance. In this paper, the technology of temporary reinforcement and extraction of underwater fragile relics with veratraldehyde followed by a process of secondary temporary reinforcement using polyethylene glycol (PEG) was studied. After investigating the melting temperature and permeability of PEGs with different molecular weights, we found that PEG-3000 is an excellent candidate as the secondary reinforcing agent for the extracted relics. In the laboratory, combined with veratraldehyde and polypropylene-fiber cloth as temporary underwater strengthening materials, and selected dispersed beaded jewelry and a broken three-dimensional crock as our research subject, we carried out an entire retrieval process-temporary stabilization and secondary temporary reinforcement, to systematically evaluate the technological aspects of safely excavating fragile underwater relics in the original state. After being extracted from water and subjected to secondary temporary reinforcement using PEG-3000, the beaded jewelry and broken crock retained their underwater shape and arrangement completely. The use of secondary reinforcing agent prevents the removal process of veratraldehyde and enclosed sediment from affecting the state of the relics.

COA of Formula: C9H10O3. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Chen, XQ; Zhang, BJ; Zhang, ZG or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about HOMOLYTIC AROMATIC-SUBSTITUTION; GAS-PHASE REACTIONS; LASER FLASH-PHOTOLYSIS; SET MODEL CHEMISTRY; ORGANIC-COMPOUNDS; RATE CONSTANTS; INORGANIC RADICALS; CENTERED RADICALS; OH RADICALS; KINETICS, Saw an article supported by the American Chemical Society Petroleum Research FundAmerican Chemical Society; Indiana Academy of Science; BSU Graduate School. Name: 3-(Trifluoromethyl)phenol. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Moores, LC; Kaur, D; Smith, MD; Poole, JS. The CAS is 98-17-9. Through research, I have a further understanding and discovery of 3-(Trifluoromethyl)phenol

The regioselectivity of hydroxyl radical addition to arenes was studied using a novel analytical method capable of trapping radicals formed after the first elementary step of reaction, without alteration of the product distributions by secondary oxidation processes. Product analyses of these reactions indicate a preference for o- over p-substitution for electron donating groups, with both favored over m-addition. The observed distributions are qualitatively similar to those observed for the addition of other carbon-centered radicals, although the magnitude of the regioselectivity observed is greater for hydroxyl. The data, reproduced by high accuracy CBS-QB3 computational methods, indicate that both polar and radical stabilization effects play a role in the observed regioselectivities. The application and potential limitations of the analytical method used are discussed.

Name: 3-(Trifluoromethyl)phenol. About 3-(Trifluoromethyl)phenol, If you have any questions, you can contact Moores, LC; Kaur, D; Smith, MD; Poole, JS or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Structure-activity relationship and biological evaluation of berberine derivatives as PCSK9 down-regulating agents WOS:000663790900001 published article about HETEROZYGOUS FAMILIAL HYPERCHOLESTEROLEMIA; HIGH CARDIOVASCULAR RISK; LDL; DEGRADATION; INHIBITION; EVOLOCUMAB; EXPRESSION; EFFICACY; THERAPY; SAFETY in [Fan, Tian-Yun; Yang, Yu-Xin; Zeng, Qing-Xuan; Wang, Xue-Lei; Wei, Wei; Guo, Xi-Xi; Zhao, Li-Ping; Song, Dan-Qing; Wang, Yan-Xiang; Wang, Li; Hong, Bin] Chinese Acad Med Sci & Peking Union Med Coll, Inst Med Biotechnol, Beijing 10050, Peoples R China in 2021, Cited 31. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9. SDS of cas: 120-14-9

Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a secreted protein and its deficiency markedly enhanced the survival rate of patient with cardiovascular diseases (CVDs). Forty berberine (BBR) derivatives were synthesized and evaluated for their activities on down-regulating the transcription of PCSK9 in HepG2 cells, taking BBR as the lead. Structure-activity relationship (SAR) analysis revealed that 2,3-dimethoxy moiety might be beneficial for activity. Among them, 9k displayed the most potent activity with IC50 value of 9.5 +/- 0.5 mu M, better than that of BBR. Also, it significantly decreased PCSK9 protein level at cellular level, as well as in the liver and serum of mice in vivo. Furthermore, 9k markedly increased LDLR expression and LDL-C clearance via downregulating PCSK9 protein. The mechanism of action of 9k is targeting HNF1 alpha and/or Sp1 cluster modulation upstream of PCSK9, a different one from BBR. Therefore, 9k might have the potential to be a novel PCSK9 transcriptional inhibitor for the treatment of atherosclerosis, worthy for further investigation.

SDS of cas: 120-14-9. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Fan, TY; Yang, YX; Zeng, QX; Wang, XL; Wei, W; Guo, XX; Zhao, LP; Song, DQ; Wang, YX; Wang, L; Hong, B or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Block, TM; Young, JAT; Javanbakht, H; Sofia, MJ; Zhou, TL in [Block, Timothy M.; Zhou, Tianlun] Baruch S Blumberg Inst, Doylestown, PA 18902 USA; [Young, John A. T.] F Hoffmann La Roche Ltd, Roche Innovat Ctr Basel, Roche Pharma Res & Early Dev, Basel, Switzerland; [Javanbakht, Hassan] SQZ Biotechnol, 200 Arsenal Yards Blvd,Suite 210, Watertown, MA 02472 USA; [Sofia, Michael J.] Arbutus Biopharma Inc, 701 Vet Circle, Warminster, PA 18974 USA published Host RNA quality control as a hepatitis B antiviral target in 2021, Cited 69. Computed Properties of C9H7NO2. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3.

Inhibition of the host RNA polyadenylating polymerases, PAPD5 and PAPD7 (PAPD5/7), with dihydroquinolizinone, a small orally available, molecule, results in a rapid and selective degradation of hepatitis B virus (HBV) RNA, and hence reduction in the amounts of viral gene products. DHQ, is a first in class investigational agent and could represent an entirely new category of HBV antivirals. PAPD5 and PAPD7 are noncanonical, cell specified, polyadenylating polymerases, also called terminal nucleotidyl transferases 4B and 4A (TENT4B/A), respectively. They are involved in the degradation of poor-quality cell transcripts, mostly noncoding RNAs and in the maturation of a sub-set of transcripts. They also appear to play a role in shielding some mRNA from degradation. The results of studies with DHQ, along with other recent findings, provide evidence that repression of the PAPD5/7 arm of the cell RNA quality control pathway, causes a profound (multifold) reduction rather than increase, in the amount of HBV pre-genomic, pre-core and HBsAg mRNA levels in tissue culture and animal models, as well. In this review we will briefly discuss the need for new HBV therapeutics and provide background about HBV transcription. We also discuss cellular degradation of host transcripts, as it relates to a new family of anti-HBV drugs that interfere with these processes. Finally, since HBV mRNA maturation appears to be selectively sensitive to PAPD5/7 inhibition in hepatocytes, we discuss the possibility of targeting host RNA quality control as an antiviral strategy.

About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Block, TM; Young, JAT; Javanbakht, H; Sofia, MJ; Zhou, TL or concate me.. Computed Properties of C9H7NO2

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2019 ORG LETT published article about ERIOSTEMON; SYNTHASE in [Coleman, Matthew A.; Burchill, Laura; Sumby, Christopher J.; George, Jonathan H.] Univ Adelaide, Dept Chem, Adelaide, SA 5005, Australia in 2019, Cited 12. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3. Application In Synthesis of 4-Hydroxyquinolin-2(1H)-one

The structure of furoerioaustralasine, a unique Australian alkaloid, has been revised based on a concise, biomimetic synthesis. The key step is a stereospecific, intramolecular ring opening of an epoxide to form a central dihydrofuran fused to a quinoline ring system.

Application In Synthesis of 4-Hydroxyquinolin-2(1H)-one. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Coleman, MA; Burchill, L; Sumby, CJ; George, JH or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

HPLC of Formula: C9H7NO2. I found the field of Chemistry very interesting. Saw the article Synthesis of Ethyl 2-Amino-4-benzoyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylates by a One-pot, Three-Component Reaction in the Presence of TPAB published in 2019, Reprint Addresses Marjani, AP (corresponding author), Urmia Univ, Dept Organ Chem, Fac Chem, Orumiyeh, Iran.. The CAS is 86-95-3. Through research, I have a further understanding and discovery of 4-Hydroxyquinolin-2(1H)-one.

In this research, in order to synthesize a series of ethyl 2-amino-4-benzoyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylates, a green and an efficient method is proposed through one-pot three-component reaction of substituted arylglyoxals, ethyl cyanoacetate, and 4-hydroxyquinolin-2(1H)-one in the presence of terapropylammonium bromide as a catalyst in good yields. All synthesized new substances were characterized by FTIR, H-1-NMR, and C-13-NMR spectral data and elemental analysis.

HPLC of Formula: C9H7NO2. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Marjani, AP; Khalafy, J; Farajollahi, A or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about MULTICOMPONENT SYNTHESIS; DERIVATIVES; EFFICIENT; CATALYST; MILD, Saw an article supported by the . Published in ELSEVIER in AMSTERDAM ,Authors: Tabassum, S; Devi, KRS; Govindaraju, S. The CAS is 120-14-9. Through research, I have a further understanding and discovery of 3,4-Dimethoxybenzaldehyde. Safety of 3,4-Dimethoxybenzaldehyde

The investigation presents a straightforward synthesis of fifteen 1,4-dihydropyrano[2,3-c]pyrazoles using ZnO@PEG nanocatalyst in ethanol via Multicomponent approach under the influence of ultrasound. The present methodology successively tolerates a variety of functional groups and offers several advantages such as excellent yields without chromatographic purification, milder reaction conditions, shorter reaction times, and the use of an environmentally benign reusable catalyst. Ecstatically, the reaction was successfully scaled to gram level ascertaining the wider applicability of ZnO@PEG nanoparticles in multicomponent reactions. (C) 2019 Elsevier Ltd. All rights reserved.

About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Tabassum, S; Devi, KRS; Govindaraju, S or concate me.. Safety of 3,4-Dimethoxybenzaldehyde

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Authors Kayamba, F; Malimabe, T; Ademola, IK; Pooe, OJ; Kushwaha, ND; Mahlalela, M; van Zyl, RL; Gordon, M; Mudau, PT; Zininga, T; Shonhai, A; Nyamori, VO; Karpoormath, R in ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER published article about MOLECULAR-DYNAMICS; ASSAY in [Kayamba, Francis; Kushwaha, Narva Deshwar; Mahlalela, Mavela; Karpoormath, Rajshekhar] Univ KwaZulu Natal, Coll Hlth Sci, Dept Pharmaceut Chem, ZA-4000 Durban, South Africa; [Malimabe, Teboho; van Zyl, Robyn L.] Univ Witwatersrand, Fac Hlth Sci, Dept Pharm & Pharmacol, Pharmacol Div, ZA-2193 Johannesburg, South Africa; [Malimabe, Teboho; van Zyl, Robyn L.] Univ Witwatersrand, Fac Hlth Sci, WITS Res Inst Malaria WRIM, ZA-2193 Johannesburg, South Africa; [Ademola, Idowu Kehinde; Gordon, Michelle] Univ KwaZulu Natal, Coll Hlth Sci, Sch Lab Med & Med Sci, ZA-4000 Durban, South Africa; [Pooe, Ofentse Jacob] Univ KwaZulu Natal, Sch Life Sci, Discipline Biochem, ZA-4000 Durban, South Africa; [Mudau, Pertunia T.; Zininga, Tawanda] Univ Venda, Sch Math & Nat Sci, Dept Biochem, ZA-0950 Thohoyandou, South Africa; [Zininga, Tawanda; Shonhai, Addmore] Stellenbosch Univ, Dept Biochem, ZA-7600 Stellenbosch, South Africa; [Nyamori, Vincent O.] Univ KwaZulu Natal, Sch Chem & Phys, Westville Campus, ZA-4000 Durban, South Africa in 2021, Cited 43. Quality Control of 3,4-Dimethoxybenzaldehyde. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

Presently, artemisinin-based combination therapy (ACT) is the first-line therapy of Plasmodium falciparum malaria. With the emergence of malaria parasites that are resistant to ACT, alternative antimalarial therapies are urgently needed. In line with this, we designed and synthesised a series of novel N-(7chloroquinolin-4-yl)-N’-(4,6-diphenylpyrimidin-2-yl)alkanediamine hybrids (6a-7c) and evaluated their inhibitory activity against the NF54 chloroquine-susceptible strain as a promising class of antimalarial compounds. The antiplasmodial screening revealed that seven analogues showed promising to good activity with half-maximal inhibitory concentration ( IC50) = 0.32 mu Me4.30 mM. Compound 7a with 1,4-diamine butyl linker and 4-hydroxyl phenyl on fourth and sixth position of pyrimidine core showed the most prominent activity with an IC50 value of 0.32 +/- 0.06 mM, with a favourable safety profile of 9.79 to human kidney epithelial (HEK293) cells. The remaining six analogues showed moderate activity with IC50 values ranging from 7.50 mM to 83.01 mM. We further investigated the binding affinities of the molecules to two essential cytosolic P. falciparum heat shock protein 70 homologues; PfHsp70-1 and PfHsp70-z. Compound 7a exhibited the highest binding affinity for both PfHsp70s with K-D in a lower nanomolar range (4.4-11.4 nM). Furthermore, molecular docking revealed that compounds 6, 6k, 7b and 7a exhibited better fitness in PfHsp70-1 with compound 7a showing the highest and lowest binding scores of similar to 9.8 kcal/mol. Therefore, we speculate that PfHsp70-1 is one of the targets of these inhibitors. The bioisoteric replacement of the groups at phenyl ring at the fourth and sixth position of the pyrimidine core had a constructive association with antiplasmodial activity. The promising antiplasmodial activity of the synthesised analogues illustrates how crucial molecular hybridisation is as a strategy in the development of quinoline-pyrimidine hybrids as prospective antiprotozoal agents. (C) 2021 Elsevier Masson SAS. All rights reserved.

Quality Control of 3,4-Dimethoxybenzaldehyde. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Kayamba, F; Malimabe, T; Ademola, IK; Pooe, OJ; Kushwaha, ND; Mahlalela, M; van Zyl, RL; Gordon, M; Mudau, PT; Zininga, T; Shonhai, A; Nyamori, VO; Karpoormath, R or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2021.0 EUR J ORG CHEM published article about ALCOHOLS; FLUORINE; OXALATES in [Zemtsov, Artem A.; Lunkov, Sergey S.; Levin, Vitalij V.; Dilman, Alexander D.] ND Zelinskii Inst Organ Chem, Leninsky Prosp 47, Moscow 119991, Russia; [Lunkov, Sergey S.] Moscow MV Lomonosov State Univ, Dept Chem, Leninskie Gory 1-3, Moscow 119991, Russia in 2021.0, Cited 39.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9. SDS of cas: 120-14-9

A method for the synthesis of trifluoromethyl-substituted dithiocarbamates from aldehydes is described. The reaction involves nucleophilic trifluoromethylation, derivatization of the silyloxy-group with pentafluoropyridine, and substitution of the fluorinated pyridinyloxy group by dithiocarbamate anion. The substitution step is performed in the presence of 12-phenyl-12H-benzo[b]phenothiazine and copper cyanide under irradiation of 400 nm LED.

SDS of cas: 120-14-9. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Zemtsov, AA; Lunkov, SS; Levin, VV; Dilman, AD or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Safety of 3-(Trifluoromethyl)phenol. In 2019 BIOORG CHEM published article about HUMAN DIHYDROOROTATE DEHYDROGENASE; DRUG in [Lu, Kuan; Zhao, Yanfang; Wu, Guodong; Hu, Hao; Jiang, Yuyang] Shenyang Pharmaceut Univ, Dept Pharmaceut Engn, Shenyang 110016, Liaoning, Peoples R China; [Lu, Kuan; Wang, Mingzhong] Sherushen Kivita Innovat Drug Discovery Inst, Sherushen 518057, Peoples R China; [Jiang, Yuyang] Tsinghua Univ, Natl & Local United Engn Lab Personalised Antitum, Grad Sch Shenshen, Shenzhen 518055, Peoples R China; [Jiang, Yuyang] Tsinghua Univ, Dept Pharmacol & Pharmaceut Sci, Sch Med, Beijing 100084, Peoples R China; [Gong, Guowei] Zunyi Med Univ, Dept Bioengn, Zhuhai Campus, Zhuhai 519041, Guangdong, Peoples R China in 2019, Cited 17. The Name is 3-(Trifluoromethyl)phenol. Through research, I have a further understanding and discovery of 98-17-9.

Human dihydroorotate dehydrogenase (hDHODH) is a flavin-dependent enzyme essential to pyrimidine de novo biosynthesis, which serves as an attractive therapeutic target for the treatment of autoimmune disorders. A novel series of hDHODH inhibitors was developed based on a lead which was obtained by a medicinal chemistry exploration. Most compounds showed moderate to significant potency against hDHODH, compounds 5d, 5e, and 6a effectively inhibited the activities of hDHODH with IC50 values from 0.9 to 2.8 mu M. Further studies showed that compound 5e also effectively suppressed proliferation of the activated PBMCs (IC50 = 20.35 mu M). Surprisingly, compound 5e also showed anti-pulmonary fibrotic activity similar to that of pirfenidone in vitro assay. Therefore, compound 5e might have potential to be developed as a novel hDHODH inhibitors for auto-immune diseases therapy.

About 3-(Trifluoromethyl)phenol, If you have any questions, you can contact Lu, K; Zhao, YF; Wu, GD; Hu, H; Wang, MZ; Gong, GW; Jiang, YY or concate me.. Safety of 3-(Trifluoromethyl)phenol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles