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. Formula: C4H3BrN2.

Zhang, Zengyu;Huang, Shiqing;Huang, Linwei;Xu, Xingyu;Zhao, Hongyan;Yan, Xiaoyu research published 《 Synthesis of Mesoionic N-Heterocyclic Olefins and Catalytic Application for Hydroboration Reactions》, the research content is summarized as follows. Mesoionic N-heterocyclic olefins have been developed, which feature high ylidic character. These compounds have been used as efficient catalysts for hydroboration of imines, nitriles, and N-heteroarenes.

Formula: C4H3BrN2, 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. 554-01-8, formula is C5H7N3O, Name is 4-Amino-5-methylpyrimidin-2(1H)-one. 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. Name: 4-Amino-5-methylpyrimidin-2(1H)-one.

Zhang, Ze;Lee, Min Kyung;Perreard, Laurent;Kelsey, Karl T.;Christensen, Brock C.;Salas, Lucas A. research published 《 Navigating the hydroxymethylome: experimental biases and quality control tools for the tandem bisulfite and oxidative bisulfite Illumina microarrays》, the research content is summarized as follows. Aim: Tandem bisulfite (BS) and oxidative bisulfite (oxBS) conversion on DNA followed by hybridization to Infinium Human Methylation BeadChips allows nucleotide resolution of 5-hydroxymethylcytosine genome-wide. Here, the authors compared data quality acquired from BS-treated and oxBS-treated samples. Materials & methods: Raw BeadArray data from 417 pairs of samples across 12 independent datasets were included in the study. Probe call rates were compared between paired BS and oxBS treatments controlling for tech. variables. Results: oxBS-treated samples had a significantly lower call rate. Among tech. variables, DNA-specific extraction kits performed better with higher call rates after oxBS conversion. Conclusion: The authors emphasize the importance of quality control during oxBS conversion to minimize information loss and recommend using a DNA-specific extraction kit for DNA extraction and an oxBSQC package for data preprocessing. Lay abstract : DNA hydroxymethylation (5-hydroxymethylcytosine [5hmC]) is a chem. modification of the cytosines in the DNA that affects gene transcription. 5hmC has been used as a biomarker for early cancer detection and survival prediction in recent years. 5hmC is measured using tandem bisulfite (BS) and oxidative bisulfite (oxBS) conversion of DNA followed by quantification through DNA methylation microarrays. This study observed a consistent loss of high-quality data in oxBS-treated samples compared with BS-treated samples. The authors offer a bioinformatic tool to evaluate potential quality issues in the process and some tech. advice to reduce false signals in the data. Thus, they emphasize the importance of preserving DNA integrity when using tandem BS- and oxBS-treated DNA to measure 5-methylcytosine and 5hmC.

Name: 4-Amino-5-methylpyrimidin-2(1H)-one, 5-Methylcytosine is a methylated form of the nucleobase cytosine occurring predominantly in cytosine-phosphate-guanine (CpG) islands that are produced by DNA methyltransferases and may regulate gene expression. Like cytosine, the DNA sequence containing 5-methylcytosine (5-mC) is able to be replicated without error and 5-mC can pair with guanine in double stranded DNA. However, DNA sequences containing a high local concentration of 5-mC may be less transcriptionally active than areas with higher ratios of unmodified cytosine.
5-Methylcytosine belongs to the class of organic compounds known as hydroxypyrimidines. These are organic compounds containing a hydroxyl group attached to a pyrimidine ring. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. 5-Methylcytosine exists as a solid, slightly soluble (in water), and a very weakly acidic compound (based on its pKa). Within the cell, 5-methylcytosine is primarily located in the cytoplasm. 5-Methylcytosine can be biosynthesized from cytosine. Outside of the human body, 5-methylcytosine can be found in tea. This makes 5-methylcytosine a potential biomarker for the consumption of this food product.
5-methylcytosine is a pyrimidine that is a derivative of cytosine, having a methyl group at the 5-position. It has a role as a human metabolite. It is a member of pyrimidines and a methylcytosine. It derives from a cytosine.
5-Methylcytosine is a nucleic acid that is found in the DNA and RNA of the cell. It is an important component of methylation, which is the process by which a methyl group is added to a molecule. This process can lead to cellular transformation, a process that can cause cancer. 5-Methylcytosine has also been shown as a molecular pathogenesis factor in infectious diseases such as HIV and herpes simplex virus type 1. The presence of 5-methylcytosine in nuclear DNA has been detected by analytical techniques such as gas chromatography/mass spectrometry (GC/MS). There are many analytical methods, including GC/MS, that can be used to detect 5-methylcytosine in cellular nuclei., 554-01-8.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U). COA of Formula: C4H3BrN2.

Zhang, Yuan;Lee, Jack Chang Hung;Reese, Matthew R.;Boscoe, Brian P.;Humphrey, John M.;Helal, Christopher J. research published 《 5-Aryltetrazoles from Direct C-H Arylation with Aryl Bromides》, the research content is summarized as follows. A mild, direct C-H arylation of 1-substituted tetrazoles to 5-aryltetrazoles is developed using a Pd/Cu cocatalytic system with readily available aryl bromides. The methodol. avoids late-stage usage of azides and tolerates a wide range of functionalities.

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., COA of Formula: C4H3BrN2

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. Product Details of C4H5N3.

Zhang, Yi;Chen, Rener;Wang, Zhiming;Wang, Lei;Ma, Yongmin research published 《 I₂-Catalyzed Three-Component Consecutive Reaction for the Synthesis of 3-Aroylimidazo[1,2-a]-N-Heterocycles》, the research content is summarized as follows. A convenient one-pot, three-component reaction has been developed for the synthesis of 3-aroylimidazo[1,2-a]-N-heterocycles from aryl ketones and 2-amino-N-heterocycles using DMSO as a methylene donor. The reaction proceeds smoothly catalyzed by I₂ in the presence of K₂S₂O₈ and affords the desired products in moderate to good yields. This protocol offers significant superiority in accessing biol. active 3-aroylimidazo[1,2-a]-N-heterocycles with various substitution patterns.

Product Details of 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

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. Synthetic Route of 4595-59-9.

Zhang, Xuan;Nottingham, Kyle G.;Patel, Chirag;Alegre-Requena, Juan V.;Levy, Jeffrey N.;Paton, Robert S.;McNally, Andrew research published 《 Phosphorus-mediated sp²-sp³ couplings for C-H fluoroalkylation of azines》, the research content is summarized as follows. Fluoroalkyl groups profoundly affect the phys. properties of pharmaceuticals and influence almost all metrics associated with their pharmacokinetic and pharmacodynamic profile. Drug candidates increasingly contain trifluoromethyl (CF₃) and difluoromethyl (CF₂H) groups, and the same trend in agrochem. development shows that the effect of fluoroalkylation translates across human, insect and plant life. New fluoroalkylation reactions have undoubtedly stimulated this shift; however, methods that directly convert C-H bonds into C-CF₂X groups (where X is F or H) in complex drug-like mols. are rare. Pyridines are the most common aromatic heterocycles in pharmaceuticals, but only one approach – via fluoroalkyl radicals – is viable for achieving pyridyl C-H fluoroalkylation in the elaborate structures encountered during drug development. Here we develop a set of bench-stable fluoroalkylphosphines that directly convert the C-H bonds in pyridine building blocks, drug-like fragments and pharmaceuticals into fluoroalkyl derivatives No preinstalled functional groups or directing groups are required. The reaction tolerates a variety of sterically and electronically distinct pyridines, and is exclusively selective for the 4-position in most cases. The reaction proceeds through initial formation of phosphonium salts followed by sp²-sp³ coupling of phosphorus ligands – an underdeveloped manifold for forming C-C bonds. Thus, e.g., treatment of 2-phenylpyridine with (fluoroalkyl)phosphine I, Tf₂O and DBU afforded intermediate phosphonium salt (not isolated) which, upon treatment with TfOH, MeOH and water afforded II (89%).

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., Synthetic Route of 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, 65-86-1, formula is C5H4N2O4, Name is 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid. including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. Synthetic Route of 65-86-1.

Zhang, Xin;Zheng, Yuanrong;Zhou, Ran;Ma, Ming research published 《 Comprehensive identification of molecular profiles related to sensory and nutritional changes in Mongolian cheese during storage by untargeted metabolomics coupled with quantification of free amino acids》, the research content is summarized as follows. Non-targeted metabolomics was used to study metabolites with low mol. weight which may contribute to quality deterioration of Mongolian cheese during storage. Microbiol. anal., pH, FAAs (free amino acids), volatile compounds, and sensory evaluation of the cheese during storage were also studied. A total of 278 metabolites were identified in Mongolian cheese, of which 51 metabolites were used as differential metabolites, including amino acids, peptides, organic acids, lipids, and carbohydrates. Bitter amino acids, bitter peptide (Phe-Ile), and organic acids (sinapic acid, butyric acid) increased during storage. Metabolic pathway anal. showed that differential metabolites were mainly related to amino acid metabolism, such as β-alanine metabolism and glycine, serine, and threonine metabolism Moreover, accompanied with the increased contents of short-chain fatty acids, 2-undecanone and Et esters, strength of odor and unpleasant smell increased but overall acceptability decreased during Mongolian cheese storage. This research provides suitable strategies for quality control of Mongolian cheese during shelf life.

65-86-1, Orotic acid anhydrous is a hydrogen bonding interaction that can be found in biological systems. It plays a role in the physiological effects of orotic acid, which is a metabolite of uridine and an intermediate in the synthesis of pyrimidine nucleotides. Orotic acid has antimicrobial properties and has been shown to inhibit enzyme activities involved in energy metabolism, such as polymerase chain reaction (PCR) and adenosine triphosphate (ATP) synthase. Orotic acid also inhibits the growth of bacteria, fungi, and parasites. Orotic acid anhydrous is used for treating myocardial infarcts or brain functions. The untreated group was given no treatment at all.
Orotic acid, also known as orotate or orotsaeure, belongs to the class of organic compounds known as pyrimidinecarboxylic acids. These are pyrimidines with a structure containing a carboxyl group attached to the pyrimidine ring. Orotic acid exists as a solid, slightly soluble (in water), and a moderately acidic compound (based on its pKa). Orotic acid has been found in human liver and pancreas tissues, and has also been primarily detected in saliva, feces, urine, and blood. Within the cell, orotic acid is primarily located in the cytoplasm and mitochondria. Orotic acid exists in all eukaryotes, ranging from yeast to humans. Orotic acid participates in a number of enzymatic reactions. In particular, Orotic acid can be biosynthesized from L-dihydroorotic acid and quinone; which is mediated by the enzyme dihydroorotate dehydrogenase (quinone), mitochondrial. In addition, Orotic acid and phosphoribosyl pyrophosphate can be converted into orotidylic acid through its interaction with the enzyme uridine monophosphate synthetase isoform a. In humans, orotic acid is involved in the pyrimidine metabolism pathway. Orotic acid is also involved in several metabolic disorders, some of which include the mngie (mitochondrial neurogastrointestinal encephalopathy) pathway, dihydropyrimidinase deficiency, UMP synthase deficiency (orotic aciduria), and Beta ureidopropionase deficiency. Outside of the human body, orotic acid can be found in a number of food items such as green vegetables, alaska blueberry, chickpea, and colorado pinyon. This makes orotic acid a potential biomarker for the consumption of these food products. Orotic acid is a potentially toxic compound. Orotic acid has been found to be associated with several diseases known as phosphoenolpyruvate carboxykinase deficiency 1, cytosolic and hyperornithinemia-hyperammonemia-homocitrullinuria; orotic acid has also been linked to several inborn metabolic disorders including n-acetylglutamate synthetase deficiency, lysinuric protein intolerance, and ornithine transcarbamylase deficiency.
Orotic acid appears as white crystals or crystalline powder.
Orotic acid is a pyrimidinemonocarboxylic acid that is uracil bearing a carboxy substituent at position C-6. It has a role as a metabolite, an Escherichia coli metabolite and a mouse metabolite. It derives from a uracil. It is a conjugate acid of an orotate., Synthetic Route of 65-86-1

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. 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. 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. Category: pyrimidines.

Zhang, Weigang;Huang, Mengjun;Zou, Zhenlei;Wu, Zhengguang;Ni, Shengyang;Kong, Lingyu;Zheng, Youxuan;Wang, Yi;Pan, Yi research published 《 Redox-active benzimidazolium sulfonamides as cationic thiolating reagents for reductive cross-coupling of organic halides》, the research content is summarized as follows. Redox-active benzimidazolium sulfonamides I (Ar = 4-methylphenyl, 2-[methoxy(oxo)methane]thiophen-3-yl, naphthalen-1-yl, etc.; R = H; R¹ = H; RR¹ = -CH-C=C-CH-) as thiolating reagents have been developed for reductive C-S bond coupling. The benzimidazolium sulfonamides I reagent provides a bench-stable cationic precursor to generate a portfolio of highly active N-S intermediates, which can be successfully applied in cross-electrophilic coupling with various organic halides R²X (X = I, Cl, Br; R² = hex-5-en-1-yl, 4-(trifluoromethoxy)phenyl, 1H-indol-5-yl, pyrimidin-2-yl, etc.). The employment of an electrophilic sulfur source solved the problem of catalyst deactivation and avoided odorous thiols, featuring practical conditions, broad substrate scope, and excellent tolerance.

Category: pyrimidines, 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

Pyrimidine is a nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA. 65-86-1, formula is C5H4N2O4, Name is 2,6-Dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid. Pyrimidine also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Reference of 65-86-1.

Zhang, Wei;Guo, Xiaoli;Ren, Jing;Chen, Yujiao;Wang, Jingyu;Gao, Ai research published 《 Glycine/glycine N-methyltransferase/sarcosine axis mediates benzene-induced hematotoxicity》, the research content is summarized as follows. Benzene, an important and widely used industrial chem., is the cause of different types of blood disorders. However, the mechanisms of benzene-induced hematotoxicity are still unclear. This study aimed to explore the effects of benzene on metabolism, especially in amino acid metabolism, in human peripheral blood B lymphocyte cells (AHH-1 cells) treated with 1,4-benzoquinone (1,4-BQ) and in benzene-exposed population based on the un-targeted and targeted metabolomics platforms. The results showed that 1,4-BQ disturbed the metabolic activity, such as arginine biosynthesis, citrate cycle, glycine, serine, and threonine metabolism pathways, and significantly upregulated the ratio of sarcosine/glycine in vitro. Meanwhile, the targeted metabolomics further showed that the ratio of sarcosine/glycine was also increased in the benzene exposure population. Notably, the expression of glycine N-methyltransferase (GNMT), an enzyme catalyzing the transformation of glycine to sarcosine, was upregulated both in 1,4-BQ treated AHH-1 cells and benzene-exposed workers. These results imply that the glycine/GNMT/sarcosine axis was involved in benzene-induced hematotoxicity. Such evidence will help to develop a better understanding of the underlying mechanism of benzene-induced hematotoxicity at the level of amino acid metabolism

Reference of 65-86-1, Orotic acid anhydrous is a hydrogen bonding interaction that can be found in biological systems. It plays a role in the physiological effects of orotic acid, which is a metabolite of uridine and an intermediate in the synthesis of pyrimidine nucleotides. Orotic acid has antimicrobial properties and has been shown to inhibit enzyme activities involved in energy metabolism, such as polymerase chain reaction (PCR) and adenosine triphosphate (ATP) synthase. Orotic acid also inhibits the growth of bacteria, fungi, and parasites. Orotic acid anhydrous is used for treating myocardial infarcts or brain functions. The untreated group was given no treatment at all.
Orotic acid, also known as orotate or orotsaeure, belongs to the class of organic compounds known as pyrimidinecarboxylic acids. These are pyrimidines with a structure containing a carboxyl group attached to the pyrimidine ring. Orotic acid exists as a solid, slightly soluble (in water), and a moderately acidic compound (based on its pKa). Orotic acid has been found in human liver and pancreas tissues, and has also been primarily detected in saliva, feces, urine, and blood. Within the cell, orotic acid is primarily located in the cytoplasm and mitochondria. Orotic acid exists in all eukaryotes, ranging from yeast to humans. Orotic acid participates in a number of enzymatic reactions. In particular, Orotic acid can be biosynthesized from L-dihydroorotic acid and quinone; which is mediated by the enzyme dihydroorotate dehydrogenase (quinone), mitochondrial. In addition, Orotic acid and phosphoribosyl pyrophosphate can be converted into orotidylic acid through its interaction with the enzyme uridine monophosphate synthetase isoform a. In humans, orotic acid is involved in the pyrimidine metabolism pathway. Orotic acid is also involved in several metabolic disorders, some of which include the mngie (mitochondrial neurogastrointestinal encephalopathy) pathway, dihydropyrimidinase deficiency, UMP synthase deficiency (orotic aciduria), and Beta ureidopropionase deficiency. Outside of the human body, orotic acid can be found in a number of food items such as green vegetables, alaska blueberry, chickpea, and colorado pinyon. This makes orotic acid a potential biomarker for the consumption of these food products. Orotic acid is a potentially toxic compound. Orotic acid has been found to be associated with several diseases known as phosphoenolpyruvate carboxykinase deficiency 1, cytosolic and hyperornithinemia-hyperammonemia-homocitrullinuria; orotic acid has also been linked to several inborn metabolic disorders including n-acetylglutamate synthetase deficiency, lysinuric protein intolerance, and ornithine transcarbamylase deficiency.
Orotic acid appears as white crystals or crystalline powder.
Orotic acid is a pyrimidinemonocarboxylic acid that is uracil bearing a carboxy substituent at position C-6. It has a role as a metabolite, an Escherichia coli metabolite and a mouse metabolite. It derives from a uracil. It is a conjugate acid of an orotate., 65-86-1.

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. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. 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. SDS of cas: 109-12-6.

Zhang, Tao;Qu, Rong;Chan, Shingpan;Lai, Mengzhen;Tong, Linjiang;Feng, Fang;Chen, Hongyu;Song, Tingting;Song, Peiran;Bai, Gang;Liu, Yingqiang;Wang, Yanan;Li, Yan;Su, Yi;Shen, Yanyan;Sun, Yiming;Chen, Yi;Geng, Meiyu;Ding, Ke;Ding, Jian;Xie, Hua research published 《 Discovery of a novel third-generation EGFR inhibitor and identification of a potential combination strategy to overcome resistance》, the research content is summarized as follows. Non-small cell lung cancer (NSCLC) patients with activating EGFR mutations initially respond to first-generation EGFR inhibitors; however, the efficacy of these drugs is limited by acquired resistance driven by the EGFR ^T790M mutation. The discovery of third-generation EGFR inhibitors overcoming EGFR ^T790M and their new resistance mechanisms have attracted much attention. We examined the antitumor activities and potential resistance mechanism of a novel EGFR third-generation inhibitor in vitro and in vivo using ELISA, SRB assay, immunoblotting, flow cytometric anal., kinase array, qRT-PCR and tumor xenograft models. The clin. effect on a patient was evaluated by computed tomog. scan. We identified compound ASK120067 as a novel inhibitor of EGFR ^T790M, with selectivity over EGFR ^WT. ASK120067 exhibited potent anti-proliferation activity in tumor cells harboring EGFR ^T790M (NCI-H1975) and sensitizing mutations (PC-9 and HCC827) while showed moderate or weak inhibition in cells expressing EGFR ^WT. Oral administration of ASK120067 induced tumor regression in NSCLC xenograft models and in a PDX model harboring EGFR ^T790M. The treatment of one patient with advanced EGFR T790M-pos. NSCLC was described as proof of principle. Moreover, we found that hyperphosphorylation of Ack1 and the subsequent activation of antiapoptotic signaling via the AKT pathway contributed to ASK120067 resistance. Concomitant targeting of EGFR and Ack1 effectively overrode the acquired resistance of ASK120067 both in vitro and in vivo. Our results identify ASK120067 as a promising third-generation EGFR inhibitor and reveal for the first time that Ack1 activation as a novel resistance mechanism to EGFR inhibitors that guide to potential combination strategy.

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., SDS of cas: 109-12-6

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. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. It is also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Related Products of 109-12-6.

Zhang, Shun;Zhao, Yan;Wang, Shuyuan;Li, Min;Xu, Yue;Ran, Jianhua;Geng, Xiaoqiang;He, Jinzhao;Meng, Jia;Shao, Guangying;Zhou, Hong;Ge, Zemei;Chen, Guangping;Li, Runtao;Yang, Baoxue research published 《 Discovery of novel diarylamides as orally active diuretics targeting urea transporters》, the research content is summarized as follows. Urea transporters (UT) play a vital role in the mechanism of urine concentration and are recognized as novel targets for the development of salt-sparing diuretics. Thus, UT inhibitors are promising for development as novel diuretics. In the present study, a novel UT inhibitor with a diarylamide scaffold was discovered by high-throughput screening. Optimization of the inhibitor led to the identification of a promising preclin. candidate, N-[4-(acetylamino)phenyl]-5-nitrofuran-2-carboxamide (1H), with excellent in vitro UT inhibitory activity at the submicromolar level. The half maximal inhibitory concentrations of 1H against UT-B in mouse, rat, and human erythrocyte were 1.60, 0.64, and 0.13 μmol/L, resp. Further investigation suggested that 8 μmol/L 1H more powerfully inhibited UT-A1 at a rate of 86.8% than UT-B at a rate of 73.9% in MDCK cell models. Most interestingly, we found for the first time that oral administration of 1H at a dose of 100 mg/kg showed superior diuretic effect in vivo without causing electrolyte imbalance in rats. Addnl., 1H did not exhibit apparent toxicity in vivo and in vitro, and possessed favorable pharmacokinetic characteristics. 1H shows promise as a novel diuretic to treat hyponatremia accompanied with volume expansion and may cause few side effects.

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., Related Products of 109-12-6

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia