Pyrimidines

Incorporation and metabolism of 2′-fluoro-5-substituted arabinosyl pyrimidines and their selective inhibition of viral DNA synthesis in herpes simplex virus type 1 (HSV-1)-infected and mock-infected Vero cells was written by Kong, Xiang Bin; Scheck, Adrienne C.; Price, Richard W.; Vidal, Pedro M.; Fanucchi, Michael P.; Watanabe, Kyoichi A.; Fox, Jack J.; Chou, Ting Chao. And the article was included in Antiviral Research on December 1,1988.COA of Formula: C9H12FN3O4 The following contents are mentioned in the article:

The incorporation and metabolism of 2′-fluoro-5-substituted arabinosyl pyrimidine analogs I and II (R = H, I, Me, Et, or CHF2) and their selective inhibition of viral DNA synthesis in herpes simplex virus type 1 (HSV-1)-infected and mock-infected Vero cells were studied by HPLC and CsCl isopycnic d. gradient anal. of isolated DNAs. The amounts of radiolabeled analogs incorporated as parent compound following 10 μM exposure for 4 h were 10-fold higher in HSV-1-infected vs. mock-infected cells for 2′-fluoro-5-difluoromethyl-Ara-U (F2FMAU); 4.3-fold higher for 5-Et deoxyuridine (EdU); 2.6-fold higher for 2′-fluoro-5-methyl-Ara-U (FMAU) and 1.7-fold higher for dThd. For 2′-fluoro-5-ethyl-Ara-U (FEAU), 3.0 pmole of unchanged moiety was incorporated per 106 HSV-1-infected cells but no incorporation was detected in mock-infected cells. HPLC profiles showed that the percentages of radiolabeled analogs incorporated as parent compound in the DNA extracted from HSV-1-infected cells were 31.0% for F2FMAU, 99.6% for EdU, 83.5% for FEAU and 98.3% for FMAU; from mock-infected cells, they were 63.6% for F2FMAU, 96.7% for EdU, 97.3% for FMAU and no incorporation into DNA for FEAU was detected. CsCl d. gradient analyses of isolated DNA showed that viral DNA synthesis was inhibited 98% by 10 μM FEAU, 92% by 10 μM F2FMAU, 90% by 2 μM FMAU and 80% by 50 μM EdU, whereas cellular DNA synthesis was inhibited by 53, 44, 61, 66 and 54%, resp. It was shown that: (a) FEAU incorporation into host-cell DNA was not detectable but FEAU was selectively incorporated into HSV-infected cells; (b) FMAU and FEAU were metabolically stable; however, F2FMAU was extensively metabolized; (c) FEAU and F2FMAU were among the most selective inhibitors of HSV-1 DNA synthesis while allowing cellular DNA synthesis to continue. This study involved multiple reactions and reactants, such as 4-Amino-1-((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one (cas: 56632-83-8COA of Formula: C9H12FN3O4).

4-Amino-1-((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one (cas: 56632-83-8) belongs to pyrimidine derivatives. The aromatic compound pyrimidine, and its derivatives, are ubiquitous in nature. They are found in nucleic acids, vitamins, amino acids, antibiotics, alkaloids, and a variety of toxins. We all know its importance to life – pyrimidine and purine bases are included in the structure of DNA and RNA.COA of Formula: C9H12FN3O4

56632-83-8;4-Amino-1-((2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one;The future of 56632-83-8;New trend of C9H12FN3O4;function of 56632-83-8

Toxicity, metabolism, DNA incorporation with lack of repair, and lactate production for 1-(2′-fluoro-2′-deoxy-β-D-arabinofuranosyl)-5-iodouracil in U-937 and MOLT-4 cells was written by Klecker, Raymond W.; Katki, Aspandiar; Collins, Jerry M.. And the article was included in Molecular Pharmacology on December 31,1994.Synthetic Route of C10H13FN2O5 The following contents are mentioned in the article:

Two cell lines, U-937 and MOLT-4, were used to investigate the toxicity, DNA incorporation, and effect on mitochondria of 1-(2′-fluoro-2′-deoxy-β-D-arabinofuranosyl)-5-iodouracil (FIAU) and its putative metabolite 1-(2′-fluoro-2′-deoxy-β-D-arabinofuranosyl)uracil (FAU). After 72-h incubation, the IC50 values for FIAU were 6.4 μM for U-937 cells and 26 μM for MOLT-4 cells. IC50 values for FAU were 10-fold higher in both cell lines. Incubation for 24 h with 10 μM [2-14C]FIAU led to 2.1% and 0.93% replacement of thymidine in DNA of U-937 and MOLT-4 cells, resp. The predominant radioactive species measurable in DNA was FIAU. A similar incubation with [2-14C]FAU resulted in 4-fold lower DNA incorporation of a single radioactive species that coeluted with 1-(2′-fluoro-2′-deoxy-β-D-arabinofuranosyl)-5-methyluracil (FMAU). There was no evidence of a selective repair process after DNA incorporation of FIAU or FAU (FMAU). Increased intracellular concentrations of FIAU triphosphate and incorporation into DNA were associated with an increase in cellular toxicity. Continuous exposure to a clin. achievable concentration of FIAU, 0.44 μM, produced a constant DNA incorporation of 0.80% and 0.11% for U-937 and MOLT-4 cells, resp. FIAU was not readily metabolized to FAU or iodouracil by human liver in vitro. Compared with 2′,3′-dideoxycytidine as a pos. control, after 12 days of continuous exposure of U-937 and MOLT-4 cells to FIAU there was no evidence of increased lactate production These data negate several possible mechanisms of FIAU hepatotoxicity(DNA chain termination, DNA polymerase inhibition, one form of selective mitochondrial poisoning, and FAU-mediated toxicity) and provide clues for possible other mechanisms (FIAU triphosphate concentration and DNA incorporation). Further work is needed to develop a complete explanation for the delayed hepatic toxicity observed in the investigational clin. trials of FIAU. This study involved multiple reactions and reactants, such as 1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (cas: 69256-17-3Synthetic Route of C10H13FN2O5).

1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (cas: 69256-17-3) belongs to pyrimidine derivatives. Pyrimidines are isomeric with two other forms of diazines: pyridazine, with the nitrogen atoms in the 1 and 2 positions; and pyrazine, with the nitrogen atoms in the 1 and 4 positions. We all know its importance to life – pyrimidine and purine bases are included in the structure of DNA and RNA.Synthetic Route of C10H13FN2O5

69256-17-3;1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione;The future of 69256-17-3;New trend of C10H13FN2O5;function of 69256-17-3

Drug resistance patterns of herpes simplex virus isolates from patient treated with acyclovir was written by McLaren, Colin; Chen, Ming S.; Ghazzouli, Ismail; Saral, Rein; Burns, William H.. And the article was included in Antimicrobial Agents and Chemotherapy on December 31,1985.Synthetic Route of C10H13FN2O5 The following contents are mentioned in the article:

A decrease in the in vitro sensitivity to acyclovir (ACV) [59277-89-3] was observed in successive isolates of herpes simplex virus type 1 from immunocompromised patients during i.v. therapy with this drug. The ACV-resistant isolate from patient 1 was cross-resistant to 9-(1,3-dihydroxy-2-propoxymethyl)guanine  [82410-32-0] and (E)-5-(2-bromovinyl-2′-deoxyuridine  [69304-47-8], but still susceptible to 3 fluoro-substituted pyrimidines, 2′-fluoro-5-iodo-1-β-D-arabinofuranosylcytosine (FIAC) [69123-90-6], 2′-fluoro-5-iodo-1-β-D-arabinofuranosyluracil (FIAU) [69123-98-4] and 2′-fluoro-1-β-D-arabinofuranosylthymine (FMAU) [69256-17-3]. Thymidine kinase (TK) [9002-06-6] from the resistant isolate showed a 50-fold or greater reduction in affinity for thymidine, FIAU, FMAU, and ACV, but the total enzyme activity was similar to that of the sensitive isolate. The ACV-resistant isolate from patient 2 was also resistant to the dihydroxypropyoxymethylguanine, the bromovinyldeoxyuridine, and the fluoro-substituted compounds; TK activity for this isolate was <1% of the patient's pretherapy isolate. An isolate obtained during a subsequent recurrence in patient 2 was susceptible to ACV and the other TK-dependent agents. The ACV-resistant isolate from patient 3 was partially resistant to FIAC and FIAU but still susceptible to FMAU; the viral TK had a 10-fold-lower affinity for ACV, FIAU, and FMAU than did the sensitive pretherapy isolate, whereas the level of TK activity detected was reduced to 6%. In none of the isolates studied was a change in sensitivity to phosphonoformic acid observed Compared with the corresponding pretherapy ACV-sensitive isolates, there was a 30-fold decrease in neurovirulence for mice of the 2 drug-resistant isolates with diminished levels of thymidine-phosphorylating activity and no change in virulence for the 3rd isolate. These findings indicate that mixed patterns of drug-resistance to TK-dependent antiviral compounds can occur in clin. isolates, resulting from changes in either the amount or the affinity of viral TK activity. This study involved multiple reactions and reactants, such as 1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (cas: 69256-17-3Synthetic Route of C10H13FN2O5).

1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (cas: 69256-17-3) belongs to pyrimidine derivatives. The aromatic compound pyrimidine, and its derivatives, are ubiquitous in nature. They are found in nucleic acids, vitamins, amino acids, antibiotics, alkaloids, and a variety of toxins. Drugs having the pyrimidine motif have manifested to exhibit gratifying biological activity like anticancer, antiviral, anti-inflammatory, antibacterial, and antihypertensive activities.Synthetic Route of C10H13FN2O5

69256-17-3;1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione;The future of 69256-17-3;New trend of C10H13FN2O5;function of 69256-17-3

Hamilton-Miller, J. M. T.; Grey, Daphne published an article in 1975, the title of the article was Resistance to trimethoprim in klebsiellae isolated before its introduction.Reference of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate And the article contains the following content:

In vitro 6 of 12 strains of Klebsiella aerogenes or K. ozaenae were resistant to trimethoprim lactate (I lactate) [23256-42-0], whereas all 12 strains were resistant to sulfamethoxazole [723-46-6]. All of these 12 strains were isolated and freeze-dried (1961-64) prior to clin. use of I. Of the 6 I-resistant strains, 5 were also resistant to tetracycline, chloramphenicol, and streptomycin. No evidence was found for R-factor involvement in I resistance. The experimental process involved the reaction of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate(cas: 23256-42-0).Reference of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate

The Article related to trimethoprim resistance klebsiella, sulfamethoxazole resistance klebsiella, Biochemical Interactions: Microbial Systems and other aspects.Reference of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Lu, Chen; Gutierrez-Bayona, Natalia Eugenia; Taylor, John-Stephen published an article in 2021, the title of the article was The effect of flanking bases on direct and triplet sensitized cyclobutane pyrimidine dimer formation in DNA depends on the dipyrimidine, wavelength and the photosensitizer.Application of 65-71-4 And the article contains the following content:

Cyclobutane pyrimidine dimers (CPDs) are the major products of DNA produced by direct absorption of UV light, and result in C to T mutations linked to human skin cancers. Most recently a new pathway to CPDs in melanocytes has been discovered that has been proposed to arise from a chemisensitized pathway involving a triplet sensitizer that increases mutagenesis by increasing the percentage of C-containing CPDs. To investigate how triplet sensitization may differ from direct UV irradiation, CPD formation was quantified in a 129-mer DNA designed to contain all 64 possible NYYN sequences. CPD formation with UVB light varied about 2-fold between dipyrimidines and 12-fold with flanking sequence and was most frequent at YYYR and least frequent for GYYN sites in accord with a charge transfer quenching mechanism. In contrast, photosensitized CPD formation greatly favored TT over C-containing sites, more so for norfloxacin (NFX) than acetone, in accord with their differing triplet energies. While the sequence dependence for photosensitized TT CPD formation was similar to UVB light, there were significant differences, especially between NFX and acetone that could be largely explained by the ability of NFX to intercalate into DNA. The experimental process involved the reaction of 5-Methylpyrimidine-2,4(1H,3H)-dione(cas: 65-71-4).Application of 65-71-4

The Article related to cyclobutane pyrimidine dimer photosensitizer wavelength photosensitization, Placeholder for records without volume info and other aspects.Application of 65-71-4

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Thirkell, D.; Blankson, M. published an article in 1981, the title of the article was The speciation of coliform genera from above and below a sewer outfall and their susceptibilities to antimicrobial agents.Recommanded Product: 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate And the article contains the following content:

The occurrence of coliforms in a small water course increased by a factor of 36 below the outfall of a sewage treatment plant. Speciation of the bacteria from above and below the sewer outfall showed that Escherichia coli and Enterobacter species predominated. Drug-resistance levels were significant in microorganisms from both sampling sites, and the occurrence of a significant number of multiple-resistant microorganisms, particularly E. coli, is reported. Both E. coli and Enterobacter species from below the sewer outfall showed a statistically significant increase in resistance to ampicillin [69-53-4] as compared with isolates from above the outfall, and E. coli from below the outfall also showed a statistically significant increase in resistance to sulphamethoxazole [723-46-6]. The experimental process involved the reaction of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate(cas: 23256-42-0).Recommanded Product: 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate

The Article related to coliform bacteria sewage antibiotic sensitivity, taxonomy coliform bacteria sewage, Biochemical Interactions: Microbial Systems and other aspects.Recommanded Product: 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On April 13, 2021, Pandey, Renu; Collins, Meghan; Lu, Xiyuan; Sweeney, Shannon R.; Chiou, Jennifer; Lodi, Alessia; Tiziani, Stefano published an article.Reference of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione The title of the article was Novel Strategy for Untargeted Chiral Metabolomics using Liquid Chromatography-High Resolution Tandem Mass Spectrometry. And the article contained the following:

Stereospecific recognition of metabolites plays a significant role in the detection of potential disease biomarkers thereby providing new insights in diagnosis and prognosis. D-Hdroxy/amino acids are recognized as potential biomarkers in several metabolic disorders. Despite continuous advances in metabolomics technologies, the simultaneous measurement of different classes of enantiomeric metabolites in a single anal. run remains challenging. Here, we develop a novel strategy for untargeted chiral metabolomics of hydroxy/amine groups (-OH/-NH2) containing metabolites, including all hydroxy acids (HAs) and amino acids (AAs), by chiral derivatization coupled with liquid chromatog.-high resolution tandem mass spectrometry (LC-HR-MS/MS). Diacetyl-tartaric anhydride (DATAN) was used for the simultaneous derivatization of-OH/-NH2 containing metabolites as well as the resulting diastereomers, and all the derivatized metabolites were resolved in a single anal. run. Data independent MS/MS acquisition (DIA) was applied to pos. identify DATAN-labeled metabolites based on reagent specific diagnostic fragment ions. We discriminated chiral from achiral metabolites based on the reversal of elution order of D and L isomers derivatized with the enantiomeric pair (±) of DATAN in an untargeted manner. Using the developed strategy, a library of 301 standards that consisted of 214 chiral and 87 achiral metabolites were separated and detected in a single anal. run. This approach was then applied to investigate the enantioselective metabolic profile of the bone marrow (BM) and peripheral blood (PB) plasma samples from patients with acute myeloid leukemia (AML) at diagnosis and following completion of the induction phase of chemotherapeutic treatment. The sensitivity and selectivity of the developed method enabled the detection of trace levels of the D-enantiomer of HAs and AAs in primary plasma patient samples. Several of these metabolites were significantly altered in response to chemotherapy. The developed LC-HR-MS method entails a valuable step forward in chiral metabolomics. 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 untargeted chiral metabolomics liquid chromatog high resolution mass spectrometry, tandem, Placeholder for records without volume info and other aspects.Reference of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On August 20, 2021, Peach, Jesse T.; Wilson, Stephanie M.; Gunderson, Logan D.; Frothingham, Lizzi; Tran, Tan; Walk, Seth T.; Yeoman, Carl J.; Bothner, Brian; Miles, Mary P. published an article.HPLC of Formula: 4433-40-3 The title of the article was Temporal metabolic response yields a dynamic biosignature of inflammation. And the article contained the following:

Chronic low-grade inflammation is a subclin. condition directly and indirectly linked to the development of a wide range of diseases responsible for the vast majority of morbidity. To examine mechanisms coupled to chronic disease, a group of overweight and obese human subjects without known inflammatory diseases participated in a high-fat meal challenge as an acute inflammation stimulus. Anal. of serum metabolites grouped by baseline cytokine levels revealed that single samples had little power in differentiating groups. However, an anal. that incorporated temporal response separated inflammatory response phenotypes and allowed us to create a metabolic signature of inflammation which revealed metabolic components that are crucial to a cytokine-mediated inflammation response. The use of temporal response, rather than a single time point, improved metabolomic prediction of high postprandial inflammation responses and led to the development of a dynamic biosignature as a potential tool for stratifying risk to a wide range of diseases. The experimental process involved the reaction of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione(cas: 4433-40-3).HPLC of Formula: 4433-40-3

The Article related to metabolic response biosignature inflammation, metabolomics, pathophysiology, systems biology, Placeholder for records without volume info and other aspects.HPLC of Formula: 4433-40-3

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Grey, Daphne; Hamilton-Miller, J. M. T. published an article in 1977, the title of the article was Sensitivity of Pseudomonas aeruginosa to sulfonamides and trimethoprim and the activity of the combination trimethoprim: sulfamethoxazole.Computed Properties of 23256-42-0 And the article contains the following content:

P. aeruginosa strains from urinary infections were resistant or only moderately sensitive to sulfadiazine [68-35-9], sulfamethoxazole (I) [723-46-6], sulfadimidine [57-68-1], or trimethoprim lactate (II lactate) [23256-42-0], but a marked synergy between I and II was noted with the moderately sensitive strains. Thus, therapeutically attainable urinary levels of these drugs (which were ineffective individually) were quite inhibitory to P. aeruginosa when used in combination. The min. inhibitory concentrations of I and II when used in combination suggested that disks containing I and II at a 1:2 ratio would be more appropriate for determining the drug susceptibility of urinary pathogens than the usual 1:20 ratio. The experimental process involved the reaction of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate(cas: 23256-42-0).Computed Properties of 23256-42-0

The Article related to sulfonamide trimethoprim pseudomonas sensitivity, urine pseudomonas trimethoprim sulfamethoxazole, Biochemical Interactions: Microbial Systems and other aspects.Computed Properties of 23256-42-0

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On May 25, 2018, Woodring, Jennifer L.; Bachovchin, Kelly A.; Brady, Kimberly G.; Gallerstein, Mitchell F.; Erath, Jessey; Tanghe, Scott; Leed, Susan E.; Rodriguez, Ana; Mensa-Wilmot, Kojo; Sciotti, Richard J.; Pollastri, Michael P. published an article.Category: pyrimidines The title of the article was Corrigendum to “Optimization of physicochemical properties for 4-Anilinoquinazoline inhibitors of trypanosome proliferation” [Eur. J. Med. Chem. 141 (2017) 446-459] [Erratum to document cited in CA167:595582]. And the article contained the following:

In the original publication, the acknowledgments section has information omitted; the correction is provided here. The experimental process involved the reaction of 4-(2-Bromopyrimidin-4-yl)morpholine(cas: 1209459-32-4).Category: pyrimidines

The Article related to anilinoquinazoline trypanosome inhibitor antimalarial malaria trypanosomiasis trypanosomicide erratum, Placeholder for records without volume info and other aspects.Category: pyrimidines

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia