Tag: M.W=100-150

I found the field of Chemistry very interesting. Saw the article A Facile, Efficient and Solvent-Free Titanium (IV) Ethoxide Catalysed Knoevenagel Condensation of Aldehydes and Active Methylenes published in 2020.0. Name: 3-Pyridinecarboxaldehyde, Reprint Addresses Shubha, PB (corresponding author), Univ Mysore, Dept Studies Chem, Mysuru 570006, Karnataka, India.. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde

Titanium ethoxide has been employed as a novel and efficient reagent for the Knoevenagel condensation of aldehydes with active methylenes such as diethyl malonate and ethyl cyanoacetate under solvent free conditions to afford substituted olefins in high to excellent yields. The reaction is suitable for a variety of aromatic, aliphatic and heteroaromatic aldehydes with various active methylenes. Parallel to this, microwave irradiation has been utilized to achieve improved reaction rates and enhanced yields. Herein, we illustrated a convenient method for the preparation of alpha,beta-unsaturated compounds using both conventional and microwave irradiation methods. An efficient and solvent free Knoevenagel condensation between aldehydes and active methylenes was developed using titanium ethoxide. The procedure proved to be successful with a wide range of substrates such as aromatic, aliphatic and heterocyclic aldehydes and various active methylenes to afford substituted olefins. The reaction was also carried out under microwave irradiation to accomplish the corresponding olefins with improved reaction rates, yields and cleaner reaction profiles.We have developed an efficient and novel methodology for the synthesis of olefinic compounds by Knoevenagel condensation under solvent-free conditions using titanium ethoxide, for the first time, as a reagent as well as a solvent. This method is appropriate for the synthesis of a variety of aromatic aldehydes containing various electron-donating and withdrawing groups, aliphatic and heteroaromatic aldehydes. The significant advantages offered by this methodology could be applied to various active methylenes in order to offer the corresponding Knoevenagel products. Thus, we believe that this method delivers high conversions, cleaner reaction profiles under solvent-free reaction conditions and shorter reaction times, all of which make it a very useful and attractive approach for the preparation of a wide range of substituted olefins.

Name: 3-Pyridinecarboxaldehyde. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Ramaiah, MM; Shivananju, NS; Shubha, PB or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Zhu, XJ; Liu, Y; Liu, C; Yang, HJ; Fu, H in [Zhu, Xianjin; Liu, Yong; Liu, Can; Yang, Haijun; Fu, Hua] Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Beijing 100084, Peoples R China published Light and oxygen-enabled sodium trifluoromethanesulfinate-mediated selective oxidation of C-H bonds in 2020, Cited 59. HPLC of Formula: C6H5NO. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1.

Visible light-induced organic reactions are important chemical transformations in organic chemistry, and their efficiency highly depends on suitable photocatalysts. However, the commonly used photocatalysts are precious transition-metal complexes and elaborate organic dyes, which hamper large-scale production due to high cost. Here, for the first time, we report a novel strategy: light and oxygen-enabled sodium trifluoromethanesulfinate-mediated selective oxidation of C-H bonds, allowing high-value-added aromatic ketones and carboxylic acids to be easily prepared in high-to-excellent yields using readily available alkyl arenes, methyl arenes and aldehydes as materials. The mechanistic investigations showed that the treatment of inexpensive and readily available sodium trifluoromethanesulfinate with oxygen under irradiation of light couldin situform a pentacoordinate sulfide intermediate as an efficient photosensitizer. The method represents a highly efficient, economical and environmentally friendly strategy, and the light and oxygen-enabled sodium trifluoromethanesulfinate photocatalytic system represents a breakthrough in photochemistry.

HPLC of Formula: C6H5NO. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Zhu, XJ; Liu, Y; Liu, C; Yang, HJ; Fu, H or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

In 2019.0 CHEM-EUR J published article about SITU CLICK-CHEMISTRY; BENZOTRIAZOLE-ASSISTED SYNTHESIS; PLASMINOGEN-ACTIVATOR SYSTEM; IN-SITU; MULTICOMPONENT REACTIONS; COMBINATORIAL CHEMISTRY; GUIDED SYNTHESIS; PROTEASE; ACETYLCHOLINESTERASE; AMINOALKYLATION in [Gladysz, Rafaela; Vrijdag, Johannes; Van Rompaey, Dries; Augustyns, Koen; De Winter, Hans; Van der Veken, Pieter] Univ Antwerp, Dept Pharmaceut Sci, Lab Med Chem UAMC, Univ Pl 1, B-2610 Antwerp, Belgium; [Vrijdag, Johannes; Lambeir, Anne-Marie] Univ Antwerp, Dept Pharmaceut Sci, Lab Med Biochem, Univ Pl 1, B-2610 Antwerp, Belgium in 2019.0, Cited 72.0. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1. HPLC of Formula: C6H5NO

Target-guided synthesis (TGS) has emerged as a promising strategy in drug discovery. Although reported examples of TGS generally involve two-component reactions, there is a strong case for developing target-guided versions of three-component reactions (3CRs) because of their potential to deliver highly diversified druglike molecules. To this end, the Groebke-Blackburn-Bienayme reaction was selected as a model 3CR. We recently reported a series of druglike urokinase inhibitors, and these serve as reference compounds in the present study. Due to the limited number of literature reports on target-guided 3CRs, multiple experimental parameters were optimized here. Most challenging was the formation of imine intermediates under near-physiological conditions. This aspect was addressed by exploring chemical imine stabilization strategies. Notably, imines are also crucial intermediates of other 3CRs. Such systematic studies are strongly required for further development of the TGS domain but are largely absent in the literature. Hence, this work is intended as a reference for future multicomponent-based TGS studies.

HPLC of Formula: C6H5NO. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Gladysz, R; Vrijdag, J; Van Rompaey, D; Lambeir, AM; Augustyns, K; De Winter, H; Van der Veken, P or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Computed Properties of C6H5NO. Recently I am researching about ACRIDINE-DERIVATIVES; ANTIOXIDANT; POTENT; AGENTS, Saw an article supported by the All India Council for Technical Education, New Delhi [8023/RiD/RPS-30/2010-11]. Published in BENTHAM SCIENCE PUBL LTD in SHARJAH ,Authors: Kalirajan, R; Gaurav, K; Pandiselvi, A; Gowramma, B; Sankar, S. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde

Background: 9-anilinoacridines are acting as DNA-intercalating agents which plays an important role as antitumor drugs, due to their anti-proliferative properties. Some anticancer agents contain 9-anilinoacridines such as amsacrine (m-AMSA), and nitracrine (Ledakrine) have been already developed. Methods: In this study, novel 9-anilinoacridines substituted with thiazines 4a-r were designed, synthesized, characterized by physical and spectral data and their cytotoxic activities against DLA cell lines were evaluated. Results: Among those compounds, 4b, c, e, g, i, j, k, m, o, p, q, r exhibited significant short term in vitro cytotoxic activity against Daltons lymphoma ascites (DLA) cells with CTC50 value of 0.18 to 0.31 mu M. The compounds 4b, c, e, g, y j, k, m, o, p, q, r are also exhibited significant long term in vitro anti-tumour activity against human tumor cell lines, HEp-2 (laryngeal epithelial carcinoma) by Sulforhodamine B assay with CTC50 value of 0.20 to 0.39 mu M. The compounds 4b, i, j exhibited significant in vivo antitumor activity with % Increase in Life Span (ILS) 48-82%. Conclusion: Results obtained in this study clearly demonstrated that many of the thiazine substituted 9-anilinoacridines exert interesting anti-tumour activity. The compounds 4b, i, j have significant anti-tumour activity and useful drugs after further refinement. The above derivatives will encourage to design future antitumor agents with high therapeutic potentials.

Computed Properties of C6H5NO. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Kalirajan, R; Gaurav, K; Pandiselvi, A; Gowramma, B; Sankar, S or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

I found the field of Chemistry very interesting. Saw the article Iodine-DMSO-Catalyzed Chemoselective Biomimetic Aromatization of Tetrahydro-beta-carbolines-3-carboxylic Acid: Mechanism Study with DFT-Calculation published in 2019.0. Recommanded Product: 500-22-1, Reprint Addresses Lokhande, PD (corresponding author), Savitribai Phule Pune Univ, Ctr Adv Studies, Dept Chem, Pune 411007, Maharashtra, India.; Bhosale, SV (corresponding author), Goa Univ, Sch Chem Sci, Taleigao Plateau 403206, Goa, India.. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde

A new protocol for the chemoselective aromatization of tetrahydro-beta-carboline-3-carboxylic acids to direct biomimetic one step synthesis of beta-carboline-3-carboxylic acids 2 A-L using catalytic amount of I-2 in DMSO/H+ produces very good yield. This method was also successfully extended for the aromatization of tetrahydro-beta-carboline-3-methyl esters 5 A-G as well as one-step synthesis of Marinacarbolines-D analog, respectively. Further, the mechanism and role of iodine-DMSO in aromatization has been studied by Density Functional Theory Calculation.

Recommanded Product: 500-22-1. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Gaikwad, SV; Nadimetla, DN; Al Kobaisi, M; Devkate, M; Joshi, R; Shinde, RG; Gaikwad, MV; Nikalje, MD; Bhosale, SV; Lokhande, PD or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Computed Properties of C6H5NO. In 2019 BIOORG CHEM published article about BIOLOGICAL EVALUATION; ANTIBACTERIAL; PRODUCTS; DRUG in [Cebeci, Yildiz Uygun; Sirin, Yakup] Karadeniz Tech Univ, Dept Chem, TR-61080 Trabzon, Turkey; [Bayrak, Hacer] Karadeniz Tech Univ, Dept Chem & Chem Proc Technol, TR-61080 Trabzon, Turkey in 2019, Cited 30. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1.

In this study, new Schiff bases and beta-lactam derivatives containing morpholine and thio morpholine nuclei were synthesized. Antimicrobial, antioxidant, antimicrobial and antioxidant properties of all synthesized compounds were investigated and highly effective products were obtained. In this context, new effective structures were introduced to the literature.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Cebeci, YU; Bayrak, H; Sirin, Y or concate me.. Computed Properties of C6H5NO

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

I found the field of Chemistry very interesting. Saw the article Development, Scope, and Applications of Titanium(III)-Catalyzed Cyclizations to Aminated N-Heterocycles published in 2019. Safety of 3-Pyridinecarboxaldehyde, Reprint Addresses Streuff, J (corresponding author), Albert Ludwigs Univ Freiburg, Inst Organ Chem, Albertstr 21, D-79104 Freiburg, Germany.. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde

The exceptionally mild conditions of a titanium(III)-catalyzed cyclization reaction paired with a convenient acid/base extraction have enabled the straightforward synthesis, isolation, and direct N-functionalization of amino heterocycles such as 3-aminoindoles and -pyrroles. The unprotected heterocycles are ideal building blocks for the installation of aminated indoles and pyrroles into target molecules, but their sensitivity has previously impeded their synthesis by modern catalytic methods. This full paper presents the development and extended scope of the new cyclization methodology. The transformation of the products into fused bis-indoles is also demonstrated along with the discovery of an unusual palladium-catalyzed reductive biphenyl coupling reaction. The titanium(III)-catalyzed cyclization has also been applied to the synthesis of substituted 3-iminoindolines, which are of potential interest for applications in natural product synthesis and exhibit tunable blue-to-green fluorescence properties.

Safety of 3-Pyridinecarboxaldehyde. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Leijendekker, LH; Weweler, J; Leuther, TM; Kratz, D; Streuff, J or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Inhibition of 3-phosphoglycerate dehydrogenase (PHGDH) by indole amides abrogates de novo serine synthesis in cancer cells WOS:000481615900014 published article about ACID; IDENTIFICATION; BIOSYNTHESIS; DERIVATIVES in [Mullarky, Edouard; Robin, Anita D.; Cantley, Lewis C.] Weill Cornell Med Coll, Meyer Canc Ctr, New York, NY 10065 USA; [Mullarky, Edouard; Robin, Anita D.; Cantley, Lewis C.] Weill Cornell Med Coll, Dept Med, New York, NY 10065 USA; [Xu, Jiayi; Huggins, David J.; Miller, Michael; Michino, Mayako; Stamford, Andrew W.; Meinke, Peter T.; Kargman, Stacia] Triinst Therapeut Discovery Inst, 413 East 69th St, New York, NY 10021 USA; [Huggins, David J.] Weill Cornell Med Coll, Dept Physiol & Biophys, New York, NY USA; [Jennings, Andy] Andy Jennings Consulting LLC, San Diego, CA USA; [Noguchi, Naoyoshi; Tomita, Daisuke] Takeda Pharmaceut Co Ltd, Pharmaceut Res Div, Shonan Res Ctr, 26-1 Muraoka Higashi 2 Chome, Fujisawa, Kanagawa 2518555, Japan; [Olland, Andrea; Lakshminarasimhan, Damodharan] Xtal Biostruct, 12 Michigan Dr, Natick, MA 01760 USA; [Su, Taojunfeng; Zhang, Guoan] Weill Cornell Med, Prote & Metabol Core Facil, New York, NY 10021 USA in 2019.0, Cited 30.0. Name: 3-Pyridinecarboxaldehyde. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1

Cancer cells reprogram their metabolism to support growth and to mitigate cellular stressors. The serine synthesis pathway has been identified as a metabolic pathway frequently altered in cancers and there has been considerable interest in developing pharmacological agents to target this pathway. Here, we report a series of indole amides that inhibit human 3-phosphoglycerate dehydrogenase (PHGDH), the enzyme that catalyzes the first committed step of the serine synthesis pathway. Using X-ray crystallography, we show that the indole amides bind the NAD(+) pocket of PHGDH. Through structure-based optimization we were able to develop compounds with low nanomolar affinities for PHGDH in an enzymatic IC50 assay. In cellular assays, the most potent compounds inhibited de novo serine synthesis with low micromolar to sub-micromolar activities and these compounds successfully abrogated the proliferation of cancer cells in serine free media. The indole amide series reported here represent an important improvement over previously published PHGDH inhibitors as they are markedly more potent and their mechanism of action is better defined.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Mullarky, E; Xu, JY; Robin, AD; Huggins, DJ; Jennings, A; Noguchi, N; Olland, A; Lakshminarasimhan, D; Miller, M; Tomita, D; Michino, M; Su, TJF; Zhang, GA; Stamford, AW; Meinke, PT; Kargman, S; Cantley, LC or concate me.. Name: 3-Pyridinecarboxaldehyde

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Recently I am researching about CARBON BOND FORMATION; ONE-POT SYNTHESIS; SILOXY SERINE ORGANOCATALYST; DYNAMIC KINETIC RESOLUTION; DIELS-ALDER REACTION; BETA-AMINO; BIOCATALYTIC PROMISCUITY; ENANTIOSELECTIVE SYNTHESIS; ENZYME PROMISCUITY; ALPHA-CHYMOTRYPSIN, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21672174]; Basic and Frontier Research Project of Chongqing [cstc2015jcyjBX0106]. Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Chen, YJ; Xiang, Y; He, YH; Guan, Z. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde. Category: pyridine-derivatives

The anti-selective direct asymmetric Mannich reaction of (hetero) aromatic aldehydes, 4-anisidine and O-protected hydroxyacetones for the synthesis of stereodefined anti-beta-amino-alpha-hydroxycarbonyl compounds was developed. Protease type XIV from Streptomyces griseus (SGP) was used as a biocatalyst in 1,4-dioxane/phosphate buffer under mild reaction conditions. The excellent diastereoselectivities of up to >99:1 (anti/syn) and good enantioselectivities of up to 90% ee were achieved. This method provides a more sustainable complement to chemically catalyzed anti-selective direct asymmetric Mannich reactions. (C) 2019 Elsevier Ltd. All rights reserved.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Chen, YJ; Xiang, Y; He, YH; Guan, Z or concate me.. Category: pyridine-derivatives

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

HPLC of Formula: C6H5NO. I found the field of Biochemistry & Molecular Biology; Chemistry very interesting. Saw the article Introducing of potent cytotoxic novel 2-(aroylamino)cinnamamide derivatives against colon cancer mediated by dual apoptotic signal activation and oxidative stress published in 2020.0, Reprint Addresses Omar, AM (corresponding author), King Abdulaziz Univ, Fac Pharm, Dept Pharmaceut Chem, Jeddah 21589, Saudi Arabia.; Ahmed, HEA (corresponding author), Taibah Univ, Coll Pharm, Pharmacognosy & Pharmaceut Chem, Al Madinah Al Munawarah 47114, Saudi Arabia.. The CAS is 500-22-1. Through research, I have a further understanding and discovery of 3-Pyridinecarboxaldehyde.

Curcumin and trans-cinnamaldehyde are acrolein-based Michael acceptor compounds that are commonly found in domestic condiments, and known to cause cancer cell death via redox mechanisms. Based on the structural features of these compounds we designed and synthesized several 2-cinnamamido-N-substituted-cinnamamide (bis-cinnamamide) compounds. One of the derivatives, (Z)-2-[(E)-cinnamamido]-3-phenyl-N-propylacrylamide 8 showed a moderate antiproliferative potency (HCT-116 cell line inhibition of 32.0 mu M), no inhibition of normal cell lines C-166, and proven cellular activities leading to apoptosis. SAR studies led to more than 10-fold increase in activity. Our most promising compound, [(Z)-3-(1H-indol-3-yl)-N-propyl-2-[(E)-3-(thien-2-yl)propenamido) propenamide] 45 killed colon cancer cells at IC50 = 0.89 mu M (Caco-2), 2.85 mu M (HCT-116) and 1.65 mu M (HT -29), while exhibiting much weaker potency on C-166 and BHK normal cell lines (IC50 = 71 mu M and 77.6 mu M, respectively). Cellular studies towards identifying the compounds mechanism of cytotoxic activities revealed that apoptotic induction occurs in part as a result of oxidative stress. Importantly, the compounds showed inhibition of cancer stem cells that are critical for maintaining the potential for self-renewal and stemness. The results presented here show discovery of covalently acting Michael addition compounds that potently kill cancer cells by a defined mechanism, with prominent selectivity profile over non-cancerous cell lines.

About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Omar, AM; El-Araby, ME; Abdelghany, TM; Safo, MK; Ahmed, MH; Boothello, R; Patel, BB; Abdel-Bakky, MS; Malebari, AM; Ahmed, HEA; Elhaggar, RS or concate me.. HPLC of Formula: C6H5NO

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem