Pyrimidines

On January 31, 2012, Zeng, Yan-Bo; Zhu, Shun-Hai; Dong, Hui; Han, Hong-Yu; Jiang, Lian-Lian; Wang, Quan; Cheng, Jun; Zhao, Qi-Ping; Ma, Wei-Jiao; Huang, Bing published an article.COA of Formula: C17H24N4O6 The title of the article was Great efficacy of sulfachloropyrazine-sodium against acute murine toxoplasmosis. And the article contained the following:

Objective: To identify more effective and less toxic drugs to treat animal toxoplasmosis. Methods: Efficacy of seven kinds of sulfonamides against Toxoplasma gondii (T. gondii) in an acute murine model was evaluated. The mice used throughout the study were randomly assigned to many groups (10 mice each), which either remained uninfected or were infected i.p. with tachyzoites of T. gondii (strains RH and CN). All groups were then treated with different sulfonamides and the optimal treatment protocol was determined candidates. Sulfadiazine-sodium (SD) was used for comparison. Results: The optimal therapy involved gavaging mice twice per day with 250 mg/kg bw of sulfachloropyrazine-sodium (SPZ) for five days. Using this protocol, the average survival time and the time-point of 50% fatalities were prolonged significantly compared with SD treatment. Treatment with SPZ protected 40% of mice from death, and the heart and kidney tissue of these animals was parasite-free, as determined by nested-PCR, SPZ showed excellent therapeutic effects in the treatment of T. gondii in an acute murine model and is therefore a promising drug candidate for the treatment and prevention of T. gondii in animals. Conclusions: II can be concluded that the effective drug sulfachloropyrazine may be the new therapeutic options against animal toxoplasmosis. The experimental process involved the reaction of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate(cas: 23256-42-0).COA of Formula: C17H24N4O6

The Article related to protozoacide sulfachloropyrazine sodium toxoplasma toxoplasmosis heart liver lung kidney, efficacy, murine, sulfachloropyrazine-sodium, sulfonamides, therapeutic effect, therapy, toxoplasma gondii, toxoplasmosis and other aspects.COA of Formula: C17H24N4O6

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On October 1, 2014, Na, Na; Shi, Ruixia; Long, Zi; Lu, Xin; Jiang, Fubin; Ouyang, Jin published an article.Name: 6-Methylpyrimidine-2,4(1H,3H)-dione The title of the article was Real-time analysis of self-assembled nucleobases by Venturi easy ambient sonic-spray ionization mass spectrometry. And the article contained the following:

The real-time anal. of self-assembled nucleobases was employed by Venturi easy ambient sonic-spray ionization mass spectrometry (V-EASI-MS). With the anal. of three nucleobases including 6-methyluracil (6MU), uracil (U) and thymine (T) as examples, different orders of clusters centered with different metal ions were recorded in both pos. and neg. modes. Compared with the results obtained by traditional electrospray ionization mass spectrometry (ESI-MS) under the same condition, more clusters with high orders, such as [6MU7+Na]+, [6MU15+2NH4]2+, [6MU10+Na]+, [T7+Na]+, and [T15+2NH4]2+ were detected by V-EASI-MS, which demonstrated the soft ionization ability of V-EASI for studying the noncovalent interaction in a self-assembly process. Furthermore, with the injection of K+ to the system by a syringe pumping, the real-time monitoring of the formation of nucleobases clusters was achieved by the direct extraction of samples from the system under the Venturi effect. Therefore, the effect of cations on the formation of clusters during self-assembly of nucleobases was demonstrated, which was in accordance with the reports. Free of high voltage, heating or radiation during the ionization, this technique is much softer and suitable for obtaining the real-time information of the self-assembly system, which also makes it quite convenient for extraction samples from the reaction system. This “easy and soft” ionization technique provided a potential pathway for monitoring and controlling the self-assembly processes. The experimental process involved the reaction of 6-Methylpyrimidine-2,4(1H,3H)-dione(cas: 626-48-2).Name: 6-Methylpyrimidine-2,4(1H,3H)-dione

The Article related to self assembled nucleobase venturi sonic spray ionization mass spectrometry, cations, on-line analysis, real-time monitoring, self-assembled nucleobases, venturi easy ambient sonic-spray ionization mass spectrometry and other aspects.Name: 6-Methylpyrimidine-2,4(1H,3H)-dione

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On November 30, 2021, Yu. Strobykina, Irina; Voloshina, Alexandra D.; Andreeva, Olga V.; Sapunova, Anastasiia S.; Lyubina, Anna P.; Amerhanova, Syumbelya K.; Belenok, Mayya G.; Saifina, Liliya F.; Semenov, Vyacheslav E.; Kataev, Vladimir E. published an article.Electric Literature of 626-48-2 The title of the article was Synthesis, antimicrobial activity and cytotoxicity of triphenylphosphonium (TPP) conjugates of 1,2,3-triazolyl nucleoside analogues. And the article contained the following:

Four new triphenylphosphonium (TPP) conjugates of 1,2,3-triazolyl nucleoside analogs were synthesized by coupling with 8-bromoctyl- or 10- bromdecyltriphenylphosphonium bromide and evaluated for the in vitro antibacterial activity against S. aureus, B. cereus, E. faecalis, two MRSA strains isolated from patients and resistant to fluoroquinolone antibiotic ciprofloxacin and β-lactam antibiotic amoxicillin, E. coli, antifungal activity against T. mentagrophytes C. albicans and cytotoxicity against human cancer cell lines M-HeLa, MCF-7, A549, HuTu-80, PC3, PANC-1 and normal cell line Wi-38. In these compounds a TPP cation was attached via an octyl or a decyl linker to the N 3 atom of the heterocycle moiety (thymine, 6-methyluracil, quinazoline-2,4-dione) which was bonded with 2′,3′,5′-tri- O – acetyl-greek beta-D-ribofuranose residue by the (1,2,3-triazol-4-il)methyl bridge. All synthesized compounds showed high antibacterial activity against S. aureus within the range of MIC values 1.2-4.3 greek muM, and three of them appeared to be bactericidal with respect to tis bacterium at MBC values 4.1-4.3 greek muM. Two lead compounds showed both high antibacterial activity against the MRSA strains resistant to Ciprofloxacin and Amoxicillin within the range of MIC values 1.0-4.3 greek muM and high cytotoxicity against human cancer cell lines HuTu-80 and MCF-7 within the range of IC50 values 6.4-10.2 greek muM. This is one of the few examples when phosphonium salts exhibited both antibacterial activity and cytotoxicity against human cancer cell lines. According to the results obtained the bactericidal effect of the lead compounds, unlike classical surfactants, was not caused by a violation of the integrity of the cytoplasmic membrane of bacteria and their cytotoxic activity is most likely associated both with the induction of apoptosis along the mitochondrial pathway and the arrest of the cell cycle in the G0/G1 phase. The experimental process involved the reaction of 6-Methylpyrimidine-2,4(1H,3H)-dione(cas: 626-48-2).Electric Literature of 626-48-2

The Article related to breast adenocarcinoma triphenylphosphonium fluorouracil doxorubicin cytotoxicity antimicrobial anticancer, antimicrobial activity, click chemistry, cytotoxicity, nucleoside analogues, phosphonium salts, tpp-conjugates and other aspects.Electric Literature of 626-48-2

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On June 29, 2020, Mattelaer, Henri-Philippe; Van Hool, Anne-Sophie; de Jong, Flip; Van der Auweraer, Mark; Van Meervelt, Luc; Dehaen, Wim; Herdewijn, Piet published an article.SDS of cas: 4433-40-3 The title of the article was New Metal-Free Route towards Imidazole-Substituted Uridine. And the article contained the following:

Nucleosides with a bi(hetero)aryl nucleobase have unique potential applications as antiviral drugs and mol. probes. The need for transition metal catalysis to synthesize these nucleosides from pre-functionalized building blocks and the use of nucleobase protection groups results in expensive and tedious syntheses. Herein we report that 5-imidazolyl-uracil can be obtained by scalable Van Leusen imidazole synthesis and regioselectively introduced on ribose to obtain the desired nucleoside I and II in a 5 step synthesis (total yield 55%). The 5-imidazolyl moiety leads to improved fluorescence properties. The only side-product formed was characterized by 2D-NMR and X-ray crystallog. and could be suppressed during synthesis in favor of the desired product. Testing these newly accessed privileged structures against the current COVID-19 pandemic is currently underway. The experimental process involved the reaction of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione(cas: 4433-40-3).SDS of cas: 4433-40-3

The Article related to van leusen imidazole synthesis nucleoside fluorescence crystal structure vorbruggen, antiviral nucleoside heteroaryl nucleobase imidazolyluracil, fleximers, fluorescent probes, green chemistry, nucleobases, nucleosides and other aspects.SDS of cas: 4433-40-3

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On February 24, 2005, Kishino, Hiroyuki; Moriya, Minoru; Sakamoto, Toshihiro; Takahashi, Hidekazu; Sakuraba, Shunji; Suzuki, Takao; Kanatani, Akio published a patent.Computed Properties of 85386-20-5 The title of the patent was Preparation of imidazopyridine derivatives as melanin-concentrating hormone receptor antagonists. And the patent contained the following:

Title compounds I [R1, R2 = H, halo, etc., further detail on R1, R2 is given; R3 = H, halo, etc.; R4 = H, alkyl; W = single bond, etc.; Ar = optionally substituted aromatic ring, etc. with R7; R7 = halo, etc.] were prepared For example, Pd-catalyzed hydrogenation of 2-isopropyl-6-nitroimidazo[1,2-a]pyridine hydrobromide followed by HATU-mediated acylation with 4′-fluoro-1,1′-biphenyl-4-carboxylic acid afforded compound II. In MCH (Melanin Concentrating Hormone) binding inhibition assays, the IC50 value of compound II was 3.1 nM. Compounds I are claimed useful for the treatment of obesity, diabetes, etc. The experimental process involved the reaction of 5-Phenylpyrimidine-2-carboxylic acid(cas: 85386-20-5).Computed Properties of 85386-20-5

The Article related to imidazopyridine preparation melanin concentrating hormone mch receptor antagonist, antiobesity agent imidazopyridine preparation mch receptor antagonist, antidiabetic agent imidazopyridine preparation mch receptor antagonist and other aspects.Computed Properties of 85386-20-5

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adib, Mehdi; Karimi-Nami, Rahman; Veisi, Hojat published an article in 2016, the title of the article was Palladium NPs supported on novel imino-pyridine-functionalized MWCNTs: efficient and highly reusable catalysts for the Suzuki-Miyaura and Sonogashira coupling reactions.Quality Control of 5-(4-Bromophenyl)pyrimidine And the article contains the following content:

In this article a new heterogeneous nanocatalyst based on palladium supported on functionalized multi-walled carbon nanotubes (MWCNTs) has been introduced. The synthetic process of the mentioned nanocatalyst, MWCNT-imino-pyridine/Pd, has been described. The characterization of the MWCNT-imino-pyridine/Pd was afforded by SEM, EDX, TEM, FTIR, ICP, and XRD. The surface structure of the materials was confirmed using Fourier transform IR (FTIR) spectroscopy. The catalytic activity of MWCNT-imino-pyridine/Pd was tested in Sonogashira and Suzuki-Miyaura cross-coupling reactions affording various derivatives of both aryl alkynes and biaryls. The catalyst can be readily recovered and recycled at least six times without significant loss of catalytic activity. The experimental process involved the reaction of 5-(4-Bromophenyl)pyrimidine(cas: 160377-42-4).Quality Control of 5-(4-Bromophenyl)pyrimidine

The Article related to palladium nanoparticle supported iminopyridine functionalized mwcnt, efficient highly reusable catalyst suzuki sonogashira coupling reaction, sonogashira suzuki crosscoupling reaction production derivative aryl alkyne biaryl and other aspects.Quality Control of 5-(4-Bromophenyl)pyrimidine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On January 31, 2021, McKnight, Ian; Hart, Christoph; Park, In-Hyun; Shim, Joon W. published an article.Application In Synthesis of 5-Methylpyrimidine-2,4(1H,3H)-dione The title of the article was Genes causing congenital hydrocephalus: Their chromosomal characteristics of telomere proximity and DNA compositions. And the article contained the following:

A review. Congenital hydrocephalus (CH) is caused by genetic mutations, but whether factors impacting human genetic mutations are disease-specific remains elusive. Given two factors associated with high mutation rates, we reviewed how many disease-susceptible genes match with (i) proximity to telomeres or (ii) high adenine and thymine (A + T) content in human CH as compared to other disorders of the central nervous system (CNS). We extracted genomic information using a genome data viewer. Importantly, 98 of 108 genes causing CH satisfied (i) or (ii), resulting in >90% matching rate. However, such a high accordance no longer sustained as we checked two factors in Alzheimers disease (AD) and/or familial Parkinsons disease (fPD), resulting in 84% and 59% matching, resp. A disease-specific matching of telomere proximity or high A + T content predicts causative genes of CH much better than neurodegenerative diseases and other CNS conditions, likely due to sufficient number of known causative genes (n = 108) and precise determination and classification of the genotype and phenotype. Our anal. suggests a need for identifying genetic basis of both factors before human clin. studies, to prioritize putative genes found in preclin. models into the likely (meeting at least one) and more likely candidate (meeting both), which predisposes human genes to mutations. The experimental process involved the reaction of 5-Methylpyrimidine-2,4(1H,3H)-dione(cas: 65-71-4).Application In Synthesis of 5-Methylpyrimidine-2,4(1H,3H)-dione

The Article related to review congenital hydrocephalus alzheimers parkinsons disease dna telomere, alzheimer’s disease, a + t content, mutation, chromosome, homologous recombination, familial parkinson’s disease, congenital hydrocephalus, telomeres and other aspects.Application In Synthesis of 5-Methylpyrimidine-2,4(1H,3H)-dione

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Tabernero, Josep; Taieb, Julien; Prager, Gerald W.; Ciardiello, Fortunato; Fakih, Marwan; Leger, Catherine; Fougeray, Ronan; Amellal, Nadia; van Cutsem, Eric published an article in 2021, the title of the article was Trifluridine/tipiracil plus bevacizumab for third-line management of metastatic colorectal cancer: SUNLIGHT study design.Related Products of 65-71-4 And the article contains the following content:

Preliminary studies of FTD/TPI plus bevacizumab have produced encouraging results in the treatment of refractory metastatic colorectal cancer. Here, we describe the design of the multinational Phase III SUNLIGHT, an open-label study of FTD/TPI plus bevacizumab as third-line treatment for patients with unresectable metastatic colorectal cancer. A total of 490 patients will be randomized 1:1 to receive either FTD/TPI plus bevacizumab, or FTD/TPI monotherapy. The primary objective is to significantly improve overall survival with FTD/TPI plus bevacizumab compared with FTD/TPI monotherapy. The first patient was enrolled in Nov. 2020. Lay abstract : Trifluridine/tipiracil is a cancer treatment used in patients with bowel cancer that has spread to other parts of the body (this is called ‘metastatic bowel cancer’). This medicine is taken by mouth. Recently, a number of studies have suggested that better results might be obtained when trifluridine/tipiracil is used in combination with another cancer drug, bevacizumab. This article describes the design of a new clin. trial. The SUNLIGHT is being set up to confirm whether the combination of trifluridine/tipiracil plus bevacizumab is indeed better than trifluridine/tipiracil alone for patients who have already had two different treatments for metastatic bowel cancer. The trial began in late 2020. The experimental process involved the reaction of 5-Methylpyrimidine-2,4(1H,3H)-dione(cas: 65-71-4).Related Products of 65-71-4

The Article related to trifluridine tipiracil bevacizumab third management metastatic colorectal cancer sunlight, ftd/tpi, phase iii, bevacizumab, metastatic colorectal cancer, randomized controlled trial, refractory, third line, trifluridine/tipiracil and other aspects.Related Products of 65-71-4

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On September 7, 2021, SenGupta, Tanima; Palikaras, Konstantinos; Esbensen, Ying Q.; Konstantinidis, Georgios; Galindo, Francisco Jose Naranjo; Achanta, Kavya; Kassahun, Henok; Stavgiannoudaki, Ioanna; Bohr, Vilhelm A.; Akbari, Mansour; Gaare, Johannes; Tzoulis, Charalampos; Tavernarakis, Nektarios; Nilsen, Hilde published an article.Reference of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione The title of the article was Base excision repair causes age-dependent accumulation of single-stranded DNA breaks that contribute to Parkinson disease pathology. And the article contained the following:

Aging, genomic stress, and mitochondrial dysfunction are risk factors for neurodegenerative pathologies, such as Parkinson disease (PD). Although genomic instability is associated with aging and mitochondrial impairment, the underlying mechanisms are poorly understood. Here, we show that base excision repair generates genomic stress, promoting age-related neurodegeneration in a Caenorhabditis elegans PD model. A physiol. level of NTH-1 DNA glycosylase mediates mitochondrial and nuclear genomic instability, which promote degeneration of dopaminergic neurons in older nematodes. Conversely, NTH-1 deficiency protects against α-synuclein-induced neurotoxicity, maintaining neuronal function with age. This apparent paradox is caused by modulation of mitochondrial transcription in NTH-1-deficient cells, and this modulation activates LMD-3, JNK-1, and SKN-1 and induces mitohormesis. The dependence of neuroprotection on mitochondrial transcription highlights the integration of BER and transcription regulation during physiol. aging. Finally, whole-exome sequencing of genomic DNA from patients with idiopathic PD suggests that base excision repair might modulate susceptibility to PD in humans. The experimental process involved the reaction of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione(cas: 4433-40-3).Reference of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione

The Article related to caenorhabditis parkinson disease single stranded dna base excision repair, c. elegans, dna-glycosylase, nth-1, parkinson disease, aging, base excision repair, hydrogen peroxide, mitohormesis, neurodegeneration, oxidative dna damage and other aspects.Reference of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Abakir, Abdulkadir; Ruzov, Alexey published an article in 2021, the title of the article was Detection of Low-Abundance DNA Modifications Using Signal Amplification-Based Immunocytochemistry.Safety of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione And the article contains the following content:

A review. Immunocytochem. can be instrumental in assessing the spatial distribution and relative levels of epigenetic modifications. Although conventional immunostaining has been utilized for the detection of 5-methylcytosine (5mC) in animal cells and tissues for several decades, the sensitivity of techniques based on the use of fluorophore-conjugated secondary antibodies is not always sufficient for studying DNA modifications that are less abundant in DNA compared with 5mC. Here we describe a protocol for sensitive immunocytochem. that utilizes peroxidase-conjugated secondary antibodies coupled with catalyzed reporter deposition and allows for detection of low-abundance noncanonical bases (e.g., 5-carboxylcytosine, 5caC, 5-formylcytosine, 5fC, 5-hydroxymethyluracil, 5hmU) in mammalian DNA. This method can be employed for evaluation of the levels and nuclear distribution of DNA modifications and permits their colocalization with protein markers in animal cells. The experimental process involved the reaction of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione(cas: 4433-40-3).Safety of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione

The Article related to review dna modification signal amplification immunocytochem, 5-carboxylcytosine, 5-formylcytosine, dna (de)methylation, dna modifications, immunocytochemistry, immunofluorescence, immunohistochemistry, oxi-mcs, signal amplification and other aspects.Safety of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia