Category: pyrimidines

The systematic study of pyrimidines began in 1884 with Pinner, who synthesized derivatives by condensing ethyl acetoacetate with amidines. Pinner first proposed the name “pyrimidin” in 1885. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. The parent compound was first prepared by Gabriel and Colman in 1900, by conversion of barbituric acid to 2,4,6-trichloropyrimidine followed by reduction using zinc dust in hot water. HPLC of Formula: 4595-59-9.

Dewan, Anindita;Sarmah, Manashi;Bharali, Pankaj;Thakur, Ashim J.;Boruah, Purna K.;Das, Manash R.;Bora, Utpal research published 《 Pd Nanoparticles-Loaded Honeycomb-Structured Bio-nanocellulose as a Heterogeneous Catalyst for Heteroaryl Cross-Coupling Reaction》, the research content is summarized as follows. Distorted honeycomb-like hollow cage-structured bio-nanocellulose (with 1-16.7μm diameters) is derived from cellulosic waste of pomegranate peel using a simple microwave technique in water under neutral conditions without using external chems. in a very short period of time. Pd nanoparticles are loaded onto the bio-nanocellulose surface by simple stirring at room temperature (25°C) and characterized by X-ray diffraction, SEM, transmission electron microscopy, Fourier-transform IR spectroscopy, Brunauer-Emmett-Teller surface area analyses, and so on. The newly developed nanocomposite material has been utilized as an efficient heterogeneous catalyst for the synthesis of potential bioactive biaryl/heterobiaryl and alkynyl/heteroalkynyl derivatives up to 98% yield via the Suzuki-Miyaura and Sonogashira cross-coupling reactions. The catalyst is reusable up to five catalytic cycles without significant loss of its catalytic activity. Waste pomegranate peel-derived honeycomb-like bio-nanocellulose serves as a heterogeneous surface for Pd nanoparticles which catalyze a variety of cross-coupling reactions.

4595-59-9, 5-Bromopyrimidine is a reactive intermediate that is used in the synthesis of 4-methoxyphenylboronic acid. 5-Bromopyrimidine has been shown to be nucleophilic, reacting with β-amino acids under basic conditions to form the corresponding 2-bromo amide. It also undergoes cross-coupling reactions with halides and can be used as a building block for other organic compounds. 5-Bromopyrimidine has optical properties that are characteristic of aromatic molecules, including strong absorption bands in the ultraviolet region and visible light region.
5-Bromopyrimidine undergoes direct metallation with lithuium diisopropylamide to yield 4-lithio-5-bromopyrimidine., HPLC of Formula: 4595-59-9

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. Computed Properties of 4595-59-9.

Dewan, Anindita;Sarmah, Manashi;Bhattacharjee, Prantika;Bharali, Pankaj;Thakur, Ashim J.;Bora, Utpal research published 《 Sustainable nano fibrillated cellulose supported in situ biogenic Pd nanoparticles as heterogeneous catalyst for C-C cross coupling reactions》, the research content is summarized as follows. This manuscript reports the design, synthesis and application of naturally occurring cellulose, generated from agro waste pomegranate peel, as novel support for active biogenic Pd (0) nanoparticles (NPs) for room temperature Suzuki-Miyaura and Sonogashira cross-coupling reactions. The presence of hydroxyl groups and unsaturated hanging bonds on their surfaces in cellulose matrix enable well dispersion of PdNPs over the support matrix to generate Pd@cellulose. This in turn exhibits excellent catalytic activity, easy removal from the reaction mixture, recyclable without loss of catalytic activity for Suzuki-Miyaura and Sonogashira reactions under ligand-free mild reaction conditions. The synthesized cellulosic nanofibers and Pd-anchored heterogeneous nanofibers were characterized by SEM, EDX, TEM, Powder XRD, FT-IR spectroscopy and BET surface anal.

Computed Properties of 4595-59-9, 5-Bromopyrimidine is a reactive intermediate that is used in the synthesis of 4-methoxyphenylboronic acid. 5-Bromopyrimidine has been shown to be nucleophilic, reacting with β-amino acids under basic conditions to form the corresponding 2-bromo amide. It also undergoes cross-coupling reactions with halides and can be used as a building block for other organic compounds. 5-Bromopyrimidine has optical properties that are characteristic of aromatic molecules, including strong absorption bands in the ultraviolet region and visible light region.
5-Bromopyrimidine undergoes direct metallation with lithuium diisopropylamide to yield 4-lithio-5-bromopyrimidine., 4595-59-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. COA of Formula: C4H5N3.

Dharuman, Suresh;Wallace, Miranda J.;Reeve, Stephanie M.;Bulitta, Jurgen B.;Lee, Richard E. research published 《 Synthesis and Structure-Activity Relationship of Thioacetamide-Triazoles against Escherichia coli》, the research content is summarized as follows. Infections due to Gram-neg. bacteria are increasingly dangerous due to the spread of multi-drug resistant strains, emphasizing the urgent need for new antibiotics with alternative modes of action. Authors have previously identified a novel class of antibacterial agents, thioacetamide-triazoles, using an antifolate targeted screen and determined their mode of action which is dependent on activation by cysteine synthase A. Herein, authors report a detailed examination of the anti-E. coli structure-activity relationship of the thioacetamide-triazoles. Analogs of the initial hit compounds were synthesized to study the contribution of the aryl, thioacetamide, and triazole sections. A clear structure-activity relationship was observed generating compounds with excellent inhibition values. Substitutions to the aryl ring were generally best tolerated, including the introduction of thiazole and pyridine heteroaryl systems. Substitutions to the central thioacetamide linker section were more nuanced; the introduction of a Me branch to the thioacetamide linker substantially decreased antibacterial activity, but the isomeric propionamide and N-benzamide systems retained activity. Changes to the triazole portion of the mol. dramatically decreased the antibacterial activity, further indicating that 1,2,3-triazole is critical for potency. From these studies, authors have identified new lead compounds with desirable in-vitro ADME properties and in-vivo pharmacokinetic properties.

COA of Formula: C4H5N3, 2-Aminopyrimidine is a useful research compound. Its molecular formula is C4H5N3 and its molecular weight is 95.1 g/mol. The purity is usually 95%.
2-Aminopyrimidine is an organic compound that belongs to the group of pyridines. It has been shown to have antimicrobial, antitumor, and antiviral properties. 2-Aminopyrimidine has been used as a fungicide and herbicide in horticulture and agriculture, respectively. The molecular geometry of this molecule is octahedral with coordination geometry C2v. This chemical binds to the BCR-ABL kinase receptor and inhibits its activity by competitive inhibition of ATP binding. 2-Aminopyrimidine has been shown to have a hematologic response in vivo models and in vitro assays. It also has anti-inflammatory effects when it is taken orally or applied topically., 109-12-6.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U). Synthetic Route of 1722-12-9.

Dhiman, Ankit Kumar;Thakur, Ankita;Kumar, Inder;Kumar, Rakesh;Sharma, Upendra research published 《 Co(III)-Catalyzed C-H Amidation of Nitrogen-Containing Heterocycles with Dioxazolones under Mild Conditions》, the research content is summarized as follows. A cobalt(III)-catalyzed C-8 selective C-H amidation of quinoline N-oxide using dioxazolone as an amidating reagent under mild conditions is disclosed. The reaction proceeds efficiently with excellent functional group compatibility. The utility of the current method is demonstrated by gram scale synthesis of C-8 amide quinoline N-oxide and by converting this amidated product into functionalized quinolines. Furthermore, the developed catalytic method is also applicable for C-7 amidation of N-pyrimidylindolines and ortho-amidation of benzamides.

Synthetic Route of 1722-12-9, 2-Chloropyrimidine is a monochlorinated pyrimidine with plant growth regulating activity. Chloropyrimidine is a useful reagent in the preparation of antivirals and other biologically active compounds.
2-Chloropyrimidine undergoes cobalt-catalyzed cross-coupling reaction with aryl halides.
2-Chloropyrimidine is a molecule that can be synthesized by the oxidation of pyrimidine with hydrogen peroxide and hydrochloric acid. The reaction proceeds through an electrochemical process in which the oxidation catalyst is a platinum electrode. This reaction is catalyzed by the nucleophilic attack of malonic acid on the chloropyrimidine at the methylene group. This efficient method for making 2-chloropyrimidine has been applied to synthesize aryl halides, including phenyl chloropyrimidine and pyridyl chloropyrimidine, from their corresponding chloride and bromide precursors. The fluorescence properties of 2-chloropyrimidine have been studied in coordination chemistry, where it forms complexes with metal ions such as Mn2+. In this study, it was found that adsorption mechanisms are dependent on molecular size, charge density, kinetic energy, and adsorbent surface area., 1722-12-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. 2927-71-1, formula is C4HCl2FN2, Name is 2,4-Dichloro-5-fluoropyrimidine. It is also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Quality Control of 2927-71-1.

Diao, Peng-Cheng;Lin, Wei-Yuan;Jian, Xie-Er;Li, Yan-Hong;You, Wen-Wei;Zhao, Pei-Liang research published 《 Discovery of novel pyrimidine-based benzothiazole derivatives as potent cyclin-dependent kinase 2 inhibitors with anticancer activity》, the research content is summarized as follows. To develop novel CDK2 inhibitors as anticancer agents, a series of novel pyrimidine-based benzothiazole derivatives I (R = 4-(S(O)₂NH₂), 4-(piperidin-1-yl), 3-F, etc.) and II (R¹ = H, F, Cl, Me, MeO; R² = H, Me, F; R³ = Me, NH₂) was designed and synthesized. Initial biol. evaluation demonstrated that some of target compounds displayed potent antitumor activity in vitro against five cancer cell lines. Especially, the analog II (R¹ = F; R² = H; R³ = NH₂) exhibited approx. potency with AZD5438 toward four cells including HeLa, HCT116, PC-3, and MDA-MB-231 with IC₅₀ values of 0.45, 0.70, 0.92, 1.80 μM, resp. More interestingly, the most highly active compound II (R¹ = F; R² = H; R³ = NH₂) in this study also possessed promising CDK2/cyclin A2 inhibitory activities with IC₅₀ values of 15.4 nM, which was almost 3-fold potent than pos. control AZD5438, and mol. docking studies revealed that the analog bound efficiently with the CDK2 binding site. Further studies indicated that compound II (R¹ = F; R² = H; R³ = NH₂) could induce cell cycle arrest and apoptosis in a concentration-dependent manner. These observations suggest that pyrimidine-benzothiazole hybrids represent a new class of CDK2 inhibitors and well worth further investigation aiming to generate potential anticancer agents.

Quality Control of 2927-71-1, 2,4-Dichloro-5-fluoropyrimidine is a useful research compound. Its molecular formula is C4HCl2FN2 and its molecular weight is 166.97 g/mol. The purity is usually 95%.
2,4-Dichloro-5-fluoropyrimidine is an aromatic hydrocarbon that has been shown to inhibit the growth of mouse tumor cells in vitro. It also inhibits the production of amines by reacting with industrial chemicals and sodium carbonate. This compound has potent inhibitory activity against autoimmune diseases and cytotoxic potency on mcf-7 cells. Furthermore, 2,4-Dichloro-5-fluoropyrimidine has been shown to have a chlorinating effect on cancer cells., 2927-71-1.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The nomenclature of pyrimidines is straightforward. However, like other heterocyclics, tautomeric hydroxyl groups yield complications since they exist primarily in the cyclic amide form. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. For example, 2-hydroxypyrimidine is more properly named 2-pyrimidone. A partial list of trivial names of various pyrimidines exists. Name: 5-Bromopyrimidine.

Dilauro, Giuseppe;Azzollini, Claudia S.;Vitale, Paola;Salomone, Antonio;Perna, Filippo M.;Capriati, Vito research published 《 Scalable Negishi Coupling between Organozinc Compounds and (Hetero)Aryl Bromides under Aerobic Conditions when using Bulk Water or Deep Eutectic Solvents with no Additional Ligands》, the research content is summarized as follows. Pd-catalyzed Negishi cross-coupling reactions between organozinc compounds and (hetero)aryl bromides have been reported when using bulk water as the reaction medium in the presence of NaCl or the biodegradable choline chloride/urea eutectic mixture Both C(sp³)-C(sp²) and C(sp²)-C(sp²) couplings have been found to proceed smoothly, with high chemoselectivity, under mild conditions (room temperature or 60°C) in air, and in competition with protonolysis. Addnl. benefits include very short reaction times (20 s), good to excellent yields (up to 98%), wide substrate scope, and the tolerance of a variety of functional groups. The proposed novel protocol is scalable, and the practicability of the method is further highlighted by an easy recycling of both the catalyst and the eutectic mixture or water.

Name: 5-Bromopyrimidine, 5-Bromopyrimidine is a reactive intermediate that is used in the synthesis of 4-methoxyphenylboronic acid. 5-Bromopyrimidine has been shown to be nucleophilic, reacting with β-amino acids under basic conditions to form the corresponding 2-bromo amide. It also undergoes cross-coupling reactions with halides and can be used as a building block for other organic compounds. 5-Bromopyrimidine has optical properties that are characteristic of aromatic molecules, including strong absorption bands in the ultraviolet region and visible light region.
5-Bromopyrimidine undergoes direct metallation with lithuium diisopropylamide to yield 4-lithio-5-bromopyrimidine., 4595-59-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. It is also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. HPLC of Formula: 4595-59-9.

Dilauro, Giuseppe;Messa, Francesco;Bona, Fabio;Perrone, Serena;Salomone, Antonio research published 《 Cobalt-catalyzed cross-coupling reactions of aryl- and alkylaluminum derivatives with (hetero)aryl and alkyl bromides》, the research content is summarized as follows. A simple cobalt complex, such as Co(phen)Cl₂, turned out to be a highly efficient and cheap precatalyst for a host of cross-coupling reactions involving aromatic and aliphatic organoaluminum reagents with aryl, heteroaryl and alkyl bromides. New C(sp²)-C(sp²) and C(sp²)-C(sp³) bonds were formed in good to excellent yields and with high chemoselectivity, under mild reaction conditions.

HPLC of Formula: 4595-59-9, 5-Bromopyrimidine is a reactive intermediate that is used in the synthesis of 4-methoxyphenylboronic acid. 5-Bromopyrimidine has been shown to be nucleophilic, reacting with β-amino acids under basic conditions to form the corresponding 2-bromo amide. It also undergoes cross-coupling reactions with halides and can be used as a building block for other organic compounds. 5-Bromopyrimidine has optical properties that are characteristic of aromatic molecules, including strong absorption bands in the ultraviolet region and visible light region.
5-Bromopyrimidine undergoes direct metallation with lithuium diisopropylamide to yield 4-lithio-5-bromopyrimidine., 4595-59-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The systematic study of pyrimidines began in 1884 with Pinner, who synthesized derivatives by condensing ethyl acetoacetate with amidines. Pinner first proposed the name “pyrimidin” in 1885. 2927-71-1, formula is C4HCl2FN2, Name is 2,4-Dichloro-5-fluoropyrimidine. The parent compound was first prepared by Gabriel and Colman in 1900, by conversion of barbituric acid to 2,4,6-trichloropyrimidine followed by reduction using zinc dust in hot water. Related Products of 2927-71-1.

Dittus, Lars;Werner, Thilo;Muelbaier, Marcel;Bantscheff, Marcus research published 《 Differential Kinobeads Profiling for Target Identification of Irreversible Kinase Inhibitors》, the research content is summarized as follows. Chemoproteomics profiling of kinase inhibitors with kinobeads enables the assessment of inhibitor potency and selectivity for endogenously expressed protein kinases in cell lines and tissues. Using a small panel of targeted covalent inhibitors, we demonstrate the importance of measuring covalent target binding in live cells. We present a differential kinobeads profiling strategy for covalent kinase inhibitors where a compound is added either to live cells or to a cell extract that enables the comprehensive assessment of inhibitor selectivity for covalent and noncovalent targets. We found that Acalabrutinib, CC-292, and Ibrutinib potently and covalently bind TEC family kinases, but only Ibrutinib also potently binds to BLK. ZAK was identified as a submicromolar affinity Ibrutinib off-target due to covalent modification of Cys22. In contrast to Ibrutinib, 5Z-7-Oxozeaenol reacted with Cys150 next to the DFG loop, demonstrating an alternative route to covalent inactivation of this kinase, e.g., to inhibit canonical TGF-β dependent processes.

Related Products of 2927-71-1, 2,4-Dichloro-5-fluoropyrimidine is a useful research compound. Its molecular formula is C4HCl2FN2 and its molecular weight is 166.97 g/mol. The purity is usually 95%.
2,4-Dichloro-5-fluoropyrimidine is an aromatic hydrocarbon that has been shown to inhibit the growth of mouse tumor cells in vitro. It also inhibits the production of amines by reacting with industrial chemicals and sodium carbonate. This compound has potent inhibitory activity against autoimmune diseases and cytotoxic potency on mcf-7 cells. Furthermore, 2,4-Dichloro-5-fluoropyrimidine has been shown to have a chlorinating effect on cancer cells., 2927-71-1.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. Application In Synthesis of 109-12-6.

Chen, Tianpeng;Wei, Yingying;Zhu, Gaoyang;Zhao, Huajun;Zhang, Xingxian research published 《 Design, synthesis and structure-activity relationship studies of 4-indole-2-arylaminopyrimidine derivatives as anti-inflammatory agents for acute lung injury》, the research content is summarized as follows. Acute lung injury/acute respiratory distress syndrome (ALI/ARDS), a clin. high mortality disease, has not been effectively treated till now, and the development of anti-acute lung injury drugs is imminent. Acute lung injury was efficiently treated by inhibiting the cascade of inflammation, and reducing the inflammatory response in the lung. A series of novel compounds with highly efficient inhibiting the expression of inflammatory factors were designed by using 4-indolyl-2-aminopyrimidine as the core skeleton. Totally eleven 4-indolyl-2-arylaminopyrimidine derivatives were designed and synthesized. As well, the related anti-ALI activity of these compounds was evaluated. Compounds I and II showed a superior activity among these compounds, and the inhibition rate of IL-6 and IL-8 release ranged from 62% to 77%, and from 65% to 72%, resp. Furthermore, most of compounds had no significant cytotoxicity in vitro. The infiltration of inflammatory cells into lung tissue significantly reduced by using compound II (20 mg/kg) in the ALI mice model, which achieved the effect of protecting lung tissue and improving ALI. In addition, the inflammatory response was inhibited by using compound II through inhibiting phosphorylation of p-38 and ERK in MAPK signaling pathway, and resulted in protective effect on ALI. These data indicated that compound II showed good anti-inflammatory activity in vitro and in vivo, which was expected to become a leading compound for the treatment of ALI.

109-12-6, 2-Aminopyrimidine is a useful research compound. Its molecular formula is C4H5N3 and its molecular weight is 95.1 g/mol. The purity is usually 95%.
2-Aminopyrimidine is an organic compound that belongs to the group of pyridines. It has been shown to have antimicrobial, antitumor, and antiviral properties. 2-Aminopyrimidine has been used as a fungicide and herbicide in horticulture and agriculture, respectively. The molecular geometry of this molecule is octahedral with coordination geometry C2v. This chemical binds to the BCR-ABL kinase receptor and inhibits its activity by competitive inhibition of ATP binding. 2-Aminopyrimidine has been shown to have a hematologic response in vivo models and in vitro assays. It also has anti-inflammatory effects when it is taken orally or applied topically., Application In Synthesis of 109-12-6

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia