Category: pyrimidines

In 2018,ChemistrySelect included an article by Xiao, Ke; Zhu, Congjun; Lin, Maohua; Song, Chuanjun; Chang, Junbiao. Formula: C8H10N2O2. The article was titled 《Base-Promoted Cycloisomerization for the Synthesis of Indolizines and Related Heterocycles》. The information in the text is summarized as follows:

The base-mediated 5-exo-dig type cyclization reaction of homopropargyl pyridines for the construction of indolizines I (R1= COOEt, CN, COMe, etc.; R2 = Me, CH2C6H4, 4-ClC6H4CH2, 4-MeOC6H4CH2; R3 = H, 7-Me) has been reported for the first time. A variety of indolizine derivatives could be obtained in moderate to excellent isolated yields by treatment of homopropargyl pryidines with cesium carbonate in DMSO at 100°. This strategy could also be adapted to the synthesis of pyrrolo[1,2-a]quinolines and pyrrolo[1,2-a]pyrimidines from the corresponding homopropargyl quinolines and homopropargyl pyrimidines, resp. The mechanism involves α C-H deprotonation, 5-exo-dig cyclization, and isomerization of the exocyclic double bond to provide the heteroaromatic system. The transformation reported herein does not require the aid of transition metal catalysts or halogens, and is thus environmentally friendly. In the part of experimental materials, we found many familiar compounds, such as Ethyl 2-(pyrimidin-2-yl)acetate(cas: 63155-11-3Formula: C8H10N2O2)

Ethyl 2-(pyrimidin-2-yl)acetate(cas: 63155-11-3) is a member of pyrimidine. Pyrimidine derivatives are an important class of N-heterocycles. They are well-known for their wide spectrum of promising biological activities such as antitumors, bactericidals, and fungicidal.Formula: C8H10N2O2

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Category: pyrimidinesIn 2021 ,《Synthesis of Luminescent Fused Imidazole Bicyclic Acetic Esters by a Multicomponent Palladium Iodide-Catalyzed Oxidative Alkoxycarbonylation Approach》 appeared in ChemCatChem. The author of the article were Veltri, Lucia; Prestia, Tommaso; Russo, Patrizio; Clementi, Catia; Vitale, Paola; Ortica, Fausto; Gabriele, Bartolo. The article conveys some information:

A new multicomponent catalytic approach to important fused imidazole bicyclic acetic esters, whose core is present in many biol. active principles, is presented. It is based on the sequential cyclization-alkoxycarbonylation-isomerization of readily available N-heterocyclic propargylamine derivatives, carried out under oxidative conditions using a simple catalytic system consisting of PdI2 (1 mol%) in conjunction with KI (1 equivalent), in the presence of AcONa as additive (1 equivalent) at 100°C under 20 bar of a 4 : 1 mixture CO-air. Under the optimized conditions, several N-(prop-2-yn-1-yl)pyridin-2-amines were smoothly converted into alkyl 2-(imidazo[1,2-a]pyridin-3-yl)acetates in fair yields (51-77%). The method was also applied to the conversion of N-(prop-2-yn-1-yl)pyrimidin-2-amine into 2-(imidazo[1,2-a]pyrimidin-3-yl)acetate and of N-(prop-2-yn-1-yl)pyrazin-2-amine into 2-(imidazo[1,2-a]pyrazin-3-yl)acetate. Some of the newly synthesized bicyclic derivatives have shown promising luminescence properties. The experimental part of the paper was very detailed, including the reaction process of 2,4,6-Trichloropyrimidine(cas: 3764-01-0Category: pyrimidines)

2,4,6-Trichloropyrimidine(cas: 3764-01-0) is a member of organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. They are generally not present in crude oils and are typically the result of additives, cleaning solutions or chemicals used for oil recovery.Category: pyrimidines

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Huang, Chen-Song; Xu, Qiong-Cong; Dai, Chunlei; Wang, Liying; Tien, Yi-Chih; Li, Fuxi; Su, Qiao; Huang, Xi-Tai; Wu, Jun; Zhao, Wei; Yin, Xiao-Yu published an article in 2021. The article was titled 《Nanomaterial-Facilitated Cyclin-Dependent Kinase 7 Inhibition Suppresses Gallbladder Cancer Progression via Targeting Transcriptional Addiction》, and you may find the article in ACS Nano.Reference of 2,4,6-Trichloropyrimidine The information in the text is summarized as follows:

Gallbladder cancer (GBC) is the most aggressive malignancy of the biliary tract cancer, and there is a lack of effective treatment. Here, we developed a nanoparticle platform (8P4 NP) that can deliver THZ1, a cyclin-dependent kinase 7 (CDK7) inhibitor, to treat GBC. Anal. of datasets demonstrated that CDK7 was pos. correlated with poor prognosis. CDK7 inhibition suppressed cell proliferation, induced apoptosis, and caused cell cycle block in GBC cells. THZ1 downregulated CDK7-mediated phosphorylation of RNA polymerase II (RNAPII), resulting in a significant downregulation of transcriptional programs, with a preferential repression of oncogenic transcription factors. To improve the tumor targeting efficiency of THZ1, 8P4 NPs were prepared and assembled with THZ1 to form THZ1@8P4 NPs. Compared with free THZ1, THZ1@8P4 NPs showed more advantages in prolonging blood circulation, escaping from lysosomes and increasing cellular uptake. Importantly, THZ1@8P4 NPs demonstrated a more significant inhibition effect on GBC cells than free THZ1 in vitro. In addition, THZ1@8P4 NPs could efficiently deliver THZ1 to tumor sites in a patient-derived xenograft model of early recurrence, leading to tumor regression and transcriptional inhibition with minimal toxicity. In summary, we conclude that THZ1@8P4 NPs provide a potent therapeutic strategy that targets CDK7-mediated transcriptional addiction in GBC.2,4,6-Trichloropyrimidine(cas: 3764-01-0Reference of 2,4,6-Trichloropyrimidine) was used in this study.

2,4,6-Trichloropyrimidine(cas: 3764-01-0) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Reference of 2,4,6-Trichloropyrimidine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In 2016,Sabat, Nazarii; Naus, Petr; Matyasovsky, Jan; Dziuba, Dmytro; Slavetinska, Lenka Postova; Hocek, Michal published 《Synthesis of fluorescent 2-substituted 6-(Het)aryl-7-deazapurine bases {4-(Het)aryl-pyrrolo[2,3-d]pyrimidines} by aqueous Suzuki-Miyaura cross-coupling reactions》.Synthesis published the findings.Quality Control of 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine The information in the text is summarized as follows:

A series of 4-(het)aryl-pyrrolo[2,3-d]pyrimidines [6-(het)aryl-7-deazapurine bases] bearing a H, NH2, CH3, F, or Cl group at the 2-position and either H or F at the 5-position (position 7 of 7-deazapurine) were prepared in a single step by the aqueous Suzuki-Miyaura cross-coupling reactions of the corresponding 6-chloro-7-deazapurines with (het)arylboronic acids. Unlike their ribonucleoside derivatives, which are potent cytostatics, the deazapurine bases did not show significant biol. activity but most of them exerted bright fluorescence with emission maxima 368-468 nm and high quantum yields up to 0.83. In the experimental materials used by the author, we found 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine(cas: 90213-66-4Quality Control of 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine)

2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine(cas: 90213-66-4) belongs to pyrimidine. 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. Quality Control of 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

《Design, Synthesis and Evaluation of Triazole-Pyrimidine Analogues as SecA Inhibitors》 was written by Cui, Jianmei; Jin, Jinshan; Chaudhary, Arpana Sagwal; Hsieh, Ying-hsin; Zhang, Hao; Dai, Chaofeng; Damera, Krishna; Chen, Weixuan; Tai, Phang C.; Wang, Binghe. Recommanded Product: 2,4,6-TrichloropyrimidineThis research focused ontriazole pyrimidine analog preparation SecA inhibitors antimicrobial resistance; SecA inhibitors; antimicrobials; protein secretion; pyrimidines; triazoles. The article conveys some information:

SecA, a key component of the bacterial Sec-dependent secretion pathway, is an attractive target for the development of new antimicrobial agents. Through a combination of virtual screening and exptl. exploration of the surrounding chem. space, we identified a hit bistriazole SecA inhibitor, SCA-21, and studied a series of analogs by systematic dissections of the core scaffold. Evaluation of these analogs allowed us to establish an initial structure-activity relationship in SecA inhibition. The best compounds in this group are potent inhibitors of SecA-dependent protein-conducting channel activity and protein translocation activity at low- to sub-micromolar concentrations They also have minimal inhibitory concentration (MIC) values against various strains of bacteria that correlate well with the SecA and protein translocation inhibition data. These compounds are effective against methicillin-resistant Staphylococcus aureus strains with various levels of efflux pump activity, indicating the capacity of SecA inhibitors to null the effect of multidrug resistance. Results from studies of drug-affinity-responsive target stability and protein pull-down assays are consistent with SecA as a target for these compounds The experimental part of the paper was very detailed, including the reaction process of 2,4,6-Trichloropyrimidine(cas: 3764-01-0Recommanded Product: 2,4,6-Trichloropyrimidine)

2,4,6-Trichloropyrimidine(cas: 3764-01-0) is a member of organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. They are generally not present in crude oils and are typically the result of additives, cleaning solutions or chemicals used for oil recovery.Recommanded Product: 2,4,6-Trichloropyrimidine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

《A pharmacological network for lifespan extension in Caenorhabditis elegans》 was written by Ye, Xiaolan; Linton, James M.; Schork, Nicholas J.; Buck, Linda B.; Petrascheck, Michael. Recommanded Product: 7-Cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine And the article was included in Aging Cell on April 30 ,2014. The article conveys some information:

Summary: One goal of aging research is to find drugs that delay the onset of age-associated disease. Studies in invertebrates, particularly Caenorhabditis elegans, have uncovered numerous genes involved in aging, many conserved in mammals. However, which of these encode proteins suitable for drug targeting is unknown. To investigate this question, we screened a library of compounds with known mammalian pharmacol. for compounds that increase C. elegans lifespan. We identified 60 compounds that increase longevity in C. elegans, 33 of which also increased resistance to oxidative stress. Many of these compounds are drugs approved for human use. Enhanced resistance to oxidative stress was associated primarily with compounds that target receptors for biogenic amines, such as dopamine or serotonin. A pharmacol. network constructed with these data reveal that lifespan extension and increased stress resistance cluster together in a few pharmacol. classes, most involved in intercellular signaling. These studies identify compounds that can now be explored for beneficial effects on aging in mammals, as well as tools that can be used to further investigate the mechanisms underlying aging in C. elegans. In the experiment, the researchers used 7-Cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine(cas: 213743-31-8Recommanded Product: 7-Cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine)

7-Cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine(cas: 213743-31-8) belongs to pyrimidine. 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. Recommanded Product: 7-Cyclopentyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Quality Control of 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidineIn 2010 ,《Synthesis of 4-chloro-7H-pyrrolo[2,3-d]pyrimidine and 2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine》 appeared in Youji Huaxue. The author of the article were Hao, Baoyu; Chen, Xinzhi; Zhang, Weihan. The article conveys some information:

An efficient route for the preparation of 4-chloro-7H-pyrrolo[2,3-d]pyrimidine and 2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine was designed and the synthesis of the target compounds was achieved using di-Et malonate as a starting material for a five-step sequence and the products were obtained in 45.8% and 44.8%, resp. In the experimental materials used by the author, we found 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine(cas: 90213-66-4Quality Control of 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine)

2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine(cas: 90213-66-4) belongs to pyrimidine. 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. Quality Control of 2,4-Dichloro-7H-pyrrolo[2,3-d]pyrimidine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Han, Shuwen; Zhuang, Chunlin; Zhou, Wei; Chen, Fener published an article in 2021. The article was titled 《Structural-based optimizations of the marine-originated meridianin C as glucose uptake agents by inhibiting GSK-3β》, and you may find the article in Marine Drugs.COA of Formula: C4H2Cl2N2 The information in the text is summarized as follows:

Glycogen synthase kinase 3β (GSK-3β) is a widely investigated mol. target for numerous diseases, and inhibition of GSK-3β activity has become an attractive approach for the treatment of diabetes. Meridianin C, an indole-based natural product isolated from marine Aplidium meridianum, has been reported as a potent GSK-3β inhibitor. In the present study, applying the structural-based optimization strategy, the pyrimidine group of meridianin C was modified by introducing different substituents based on the 2-aminopyrimidines-substituted pyrazolo pyridazine scaffold. Among them, compounds B29 and B30 showed a much higher glucose uptake than meridianin C (<5%) and the pos. compound 4-benzyl-2-methyl-1,2,4-thiadiazolidine-3,5-dione (TDZD-8, 16%), with no significant toxicity against HepG2 cells at the same time. Furthermore, they displayed good GSK-3β inhibitory activities (IC 50 = 5.85; 24.4 μM). These results suggest that these meridianin C analogs represent novel lead compounds with therapeutic potential for diabetes.2,4-Dichloropyrimidine(cas: 3934-20-1COA of Formula: C4H2Cl2N2) was used in this study.

2,4-Dichloropyrimidine(cas: 3934-20-1) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.COA of Formula: C4H2Cl2N2

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In 2022,Sun, Yiping; Qu, Hongmei; Zhang, Jiacai; Duan, Xingyu; Zhang, Xiaokun published an article in Tetrahedron. The title of the article was 《Room temperature phosphorescence, thermally activated delayed fluorescence and multicolor mechanochromic luminescence of emitters through molecular interaction and conformational modulations》.Name: 2,4-Dichloropyrimidine The author mentioned the following in the article:

Two novel heavy atom-free pure organic pyrimidine-based asym. donor-acceptor type emitters were designed and synthesized. The twisted D-A conformation was favored to produce small ΔEst and effective ISC. Excitingly, PMBT and CzPMBT showed precious fluorescence-RTP-TADF triple emission. Furthermore, PMBT responded to external stimuli of volatile solvents fumigation and different intensity grinding to generate a multicolor switching system, which included charming white light due to the dual emission of fluorescence and phosphorescence. Crystallog. anal. was conducted to explain the reasons for the differences in photophys. properties produced by the two compounds This research provides insight into the mechanism of action of RTP, TADF and multicolor MCL through intermol. interactions and conformational modulation. The experimental process involved the reaction of 2,4-Dichloropyrimidine(cas: 3934-20-1Name: 2,4-Dichloropyrimidine)

2,4-Dichloropyrimidine(cas: 3934-20-1) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Name: 2,4-Dichloropyrimidine

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In 2022,Kruppa, Marco; Sommer, Gereon A.; Mueller, Thomas J. J. published an article in Molecules. The title of the article was 《Concise Syntheses of Marine (Bis)indole Alkaloids Meridianin C, D, F, and G and Scalaridine A via One-Pot Masuda Borylation-Suzuki Coupling Sequence》.Computed Properties of C4H2Cl2N2 The author mentioned the following in the article:

N-Protected 3-iodoindoles were reacted with (di)azine halides in a sequentially Pd-catalyzed one-pot fashion, i.e., by Masuda borylation-Suzuki coupling (MBSC) sequence. This methodol. was successfully applied to the concise syntheses of marine indole alkaloids meridianin C, D, F, and G, as well as to the bisindole alkaloid scalaridine A, which were obtained in moderate to excellent yield. The experimental process involved the reaction of 2,4-Dichloropyrimidine(cas: 3934-20-1Computed Properties of C4H2Cl2N2)

2,4-Dichloropyrimidine(cas: 3934-20-1) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Computed Properties of C4H2Cl2N2

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia