Pyrimidines

On December 6, 2018, Fan, Pingchen; Lange, Christopher W.; Lui, Rebecca M.; Malathong, Viengkham; Mali, Venkat Reddy; Punna, Sreenivas; Singh, Rajinder; Tanaka, Hiroko; Zeng, Yibin; Zhang, Penglie published a patent.Category: pyrimidines The title of the patent was 6-5 Fused ring as C5a inhibitors and their preparation. And the patent contained the following:

The disclosure provides, inter alia, compounds of formula I or pharmaceutically acceptable salts thereof that are modulators of the C5a receptor. Also provided are pharmaceutical compositions and methods of use including the treatment of diseases or disorders involving pathol. activation from C5a and non-pharmaceutical applications. Compounds of formula I wherein A0 is Nh and CO; A1 and A3 are independently N, NH, CH, CO and CR4; A2, A5 and A6 are independently N, CH and CR4; A4 is N, NC1-4 alkyl, CH and CR4; provided that no more than two of A3, A4, A5 and A6 are N; dashed bonds are single and double bonds; n is 0, 1, 2 and 3; R1 is heteroaryl, C6-10 aryl, C1-8 alkylene-heteroaryl, etc.; each R2a is independently C1-6 alkyl, C1-6 alkoxy, C1-6 haloalkyl, etc.; each R2b is independently H, C1-6 alkyl, C1-6 alkoxy, C1-6 haloalkyl, CN, etc.; each R3 is independently C1-4 alkyl, C1-4 haloalkyl, and OH; two R3 groups can be taken together to form oxo; each R4 is independently C1-6 alkyl, C1-6 alkoxy, C1-6 hydroxyalkyl, halo, etc.; and pharmaceutically acceptable salts thereof, are claimed. Example compound II was prepared by a multistep procedure (procedure given). The invention compounds were evaluated for their C5a inhibitory activity. From the assay, it was determined that compound II exhibited IC50 value of < 5 nM. The experimental process involved the reaction of 2-Chloro-5-isopropylpyrimidine(cas: 596114-50-0).Category: pyrimidines

The Article related to indazole preparation c5a inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.Category: pyrimidines

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On May 31, 2021, Tang, Lei published an article.Recommanded Product: 4433-40-3 The title of the article was Walking through chromatin modifications. And the article contained the following:

The Cell-TALKING technique probes DNA modifications around a histone modification in fixed cells. Chromatin is a highly organized structure composed of repeating DNA-histone complexes decorated with DNA modifications and histone post-translational modifications (PTMs). To study the composition of chromatin modifications, Zhao’s lab developed Cell-TALKING, a method that leverages DNA walking to index one-to-many combinations of a histone modification with various DNA modifications within a 10-nm nanoenvironment. In Cell-TALKING, the PTM target site is labeled with a DNA walking probe (WP), and DNA modifications including 5-hydroxymethyluracil (5hmU), 5-hydroxymethylcytosine (5hmC) and 5-formyluracil (5fU) are labeled with unique barcoding probes (BPs) that are inactivated with blocked 3′ ends. The researchers applied Cell-TALKING to study the changes in chromatin modifications during the cell cycle and identified combinations of DNA modifications and histone modifications near each other. The experimental process involved the reaction of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione(cas: 4433-40-3).Recommanded Product: 4433-40-3

The Article related to cell talking chromatin modification, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.Recommanded Product: 4433-40-3

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On September 30, 2015, Gong, Canfeng published a patent.Synthetic Route of 23256-42-0 The title of the patent was Flame-retardant antimicrobial coating. And the patent contained the following:

The title flame-retardant antimicrobial coating is prepared from (by parts) furfuryl alc. resin 6-10, butylhydroxyanisole 15-30, polyhexamethylene guanidine 8-16, zirconite powder 10-25, trimethoprim lactate 8-10, bismaleimide resin 4-10, antimony trioxide 12-20, cobalt blue 0.5-1, chlorothalonil 0.1-0.5, magnesium stearate 5-15, isophorone diisocyanate 1-3, and deionized water 30-100. The invention also provides a preparation method of the flame-retardant antimicrobial coating. The inventive flame-retardant antimicrobial coating has good antimicrobial property and flame retardance. The experimental process involved the reaction of 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate(cas: 23256-42-0).Synthetic Route of 23256-42-0

The Article related to flame retardant antimicrobial coating, Coatings, Inks, and Related Products: Other Coating Materials and other aspects.Synthetic Route of 23256-42-0

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On January 12, 2018, Wang, Fang; Li, Chong; Zhang, Zhaochao; Zhang, Xiaoqing published a patent.Computed Properties of 160377-42-4 The title of the patent was Organic compound based on triazine and quinoxaline and its application in organic light-emitting device. And the patent contained the following:

The invention relates to organic compound based on triazine and quinoxaline and its application in organic light-emitting device. The inventive organic compound has high glass transition temperature and mol. thermal stability, has low light absorption and high refractive index in visible light field, and can effectively improve light extraction efficiency of OLED device when applied in CPL layer of OLED device. The inventive compound has deep HOMO level and a high electron mobility, can be applied as hole blocking/electron transporting layer material of OLED device, and can effectively block transportation of hole or energy from light-emitting layer to the side of electron layer, thereby improving recombination efficiency of holes and electrons in light-emitting layer and improving light-emitting efficiency and service life of OLED device. The experimental process involved the reaction of 5-(4-Bromophenyl)pyrimidine(cas: 160377-42-4).Computed Properties of 160377-42-4

The Article related to triazine quinoxaline preparation oled, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.Computed Properties of 160377-42-4

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On December 31, 2017, Akbarzadeh, Marzieh; Bakavoli, Mehdi; Eshghi, Hossein; Shiri, Ali published an article.HPLC of Formula: 626-48-2 The title of the article was Synthesis of novel derivatives of (benz)imidazo[2,1-b]pyrimido[4,5-d][1,3]thiazine. And the article contained the following:

Several derivatives of the novel heterocyclic systems 2-substituted-imidazo- and benzimidazo-[2,1-b]pyrimido[4,5-d][1,3]thiazine were synthesized through the one-pot cyclocondensation of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine with imidazolidine-2-thione and 1H-benzimidazole-2(3H)-thione and subsequently substituted by various secondary amines in moderately good yields. The experimental process involved the reaction of 6-Methylpyrimidine-2,4(1H,3H)-dione(cas: 626-48-2).HPLC of Formula: 626-48-2

The Article related to amino imidazopyrimidothiazine preparation, Heterocyclic Compounds (More Than One Hetero Atom): Thiazines and other aspects.HPLC of Formula: 626-48-2

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On December 6, 2018, Fan, Pingchen; Lange, Christopher W.; Lui, Rebecca M.; Malathong, Viengkham; Mali, Venkat Reddy; Punna, Sreenivas; Zeng, Yibin; Zhang, Penglie published a patent.Related Products of 596114-50-0 The title of the patent was 5-5 Fused ring as C5a inhibitors and their preparation. And the patent contained the following:

The disclosure provides, inter alia, compounds of formula I or pharmaceutically acceptable salts thereof that are modulators of the C5a receptor. Also provided are pharmaceutical compositions and methods of use including the treatment of diseases or disorders involving pathol. activation from C5a and non-pharmaceutical applications. Compounds of formula I wherein A1 is N, CH, CO and CR4; A2 is N, CH and CR4; A3, A4, A5 and A6 are independently CH and CR4; dashed bonds are single and double bonds; n is 0, 1, 2 and 3; R1 is C1-8 alkylene-C6-10 aryl, C1-8 alkylene-heteroaryl, C1-8 alkyl, etc.; each R2a is independently C1-6 alkyl, C1-6 alkoxy, C1-6 haloalkyl, etc.; each R2b is independently H, C1-6 alkyl, C1-6 alkoxy, C1-6 haloalkyl, CN, etc.; each R3 is independently C1-4 alkyl, C1-4 haloalkyl, halo and OH; two R3 groups can be taken together to form oxo or a 3- to 5-membered ring; each R4 is independently C1-6 alkyl, C1-6 alkoxy, C1-6 hydroxyalkyl, halo, etc.; and pharmaceutically acceptable salts thereof, are claimed. Example compound II was prepared by a multistep procedure (procedure given). The invention compounds were evaluated for their C5a inhibitory activity. From the assay, it was determined that compound II exhibited IC50 value of < 5 nM. The experimental process involved the reaction of 2-Chloro-5-isopropylpyrimidine(cas: 596114-50-0).Related Products of 596114-50-0

The Article related to pyrrolopyrazole preparation c5a inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.Related Products of 596114-50-0

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On September 30, 2020, Li, Qian; Zhao, Jiemin; Liu, Longfei; Jonchhe, Sagun; Rizzuto, Felix J.; Mandal, Shankar; He, Huawei; Wei, Sansen; Sleiman, Hanadi F.; Mao, Hanbin; Mao, Chengde published an article.Computed Properties of 65-71-4 The title of the article was A poly(thymine)-melamine duplex for the assembly of DNA nanomaterials. And the article contained the following:

Abstract: The diversity of DNA duplex structures is limited by a binary pair of hydrogen-bonded motifs. Here we show that poly(thymine) self-associates into antiparallel, right-handed duplexes in the presence of melamine, a small mol. that presents a triplicate set of the hydrogen-bonding face of adenine. X-ray crystallog. shows that in the complex two poly(thymine) strands wrap around a helical column of melamine, which hydrogen bonds to thymine residues on two of its three faces. The mech. strength of the thymine-melamine-thymine triplet surpasses that of adenine-thymine base pairs, which enables a sensitive detection of melamine at 3 pM. The poly(thymine)-melamine duplex is orthogonal to native DNA base pairing and can undergo strand displacement without the need for overhangs. Its incorporation into two-dimensional grids and hybrid DNA-small-mol. polymers highlights the poly(thymine)-melamine duplex as an addnl. tool for DNA nanotechnol. The experimental process involved the reaction of 5-Methylpyrimidine-2,4(1H,3H)-dione(cas: 65-71-4).Computed Properties of 65-71-4

The Article related to polythymine melamine duplex dna nanomaterial, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.Computed Properties of 65-71-4

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On January 22, 2019, Xing, Qifeng; Li, Zhiyang; Liu, Shuyao; Ren, Xueyan published a patent.HPLC of Formula: 160377-42-4 The title of the patent was Preparation of pyrazoloindazole derivatives and their application in OLED. And the patent contained the following:

The invention relates to pyrazoloindazole derivative of formula I [wherein Ar1 = H, (un)substituted C6-30 aryl or fused aryl, and (un)substituted C3-30 heteroaryl or fused heteroaryl; Ar2 = (un)substituted C6-30 aryl or fused aryl, and (un)substituted C3-30 heteroaryl or fused heteroaryl], method for their preparation and their application in OLED. The inventive compound can be applied in OLED to effectively reduce the work voltage and improve the light-emitting efficiency of the OLED. The experimental process involved the reaction of 5-(4-Bromophenyl)pyrimidine(cas: 160377-42-4).HPLC of Formula: 160377-42-4

The Article related to pyrazoloindazole derivative preparation oled, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.HPLC of Formula: 160377-42-4

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On September 25, 2014, Chan, Bryan; Estrada, Anthony; Shore, Daniel; Sweeney, Zachary published a patent.Formula: C8H10BrN3O The title of the patent was Preparation of pyrazolopyridine compounds as LRRK2 inhibitors. And the patent contained the following:

The invention relates to pyrazolopyridine compounds of formula I and II, or pharmaceutically acceptable salts thereof that are useful for the treatment of the diseases associated with LRRK2. Compounds of formula I and II wherein R1 is (un)substituted alkyl, heterocycloalkyl, cycloalkyl, etc.; for formula I, one, two, or three of X1-X4 are N and the remainder are each independently CR2; or X1-X4 are independently CR2; for formula II, X4 is C or N; and one or two of X1-X3 are independently N or NR8, and the remainder are each independently CR2; each R2 is independently H, alkyl, cyano, halo, heteroaryl, OR4, CONR5R6, SO2R7, etc.; each R8 is independently H or (un)substituted alkyl; R4-R7 are independently H or alkyl; R5 and R6 together with nitrogen to which they are attached are linked to form a ring; are claimed. Example compound III was prepared by cyclocondensation of compound IV with hydrazine hydrate, followed by deprotection in 25% yield over two steps. The invention compounds were evaluated for the LRRK2 inhibitory activity and compound III shows 0.0005 μM of Ki. The experimental process involved the reaction of 4-(2-Bromopyrimidin-4-yl)morpholine(cas: 1209459-32-4).Formula: C8H10BrN3O

The Article related to pyrazolopyridine preparation lrrk2 inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.Formula: C8H10BrN3O

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

On December 18, 2020, Nguyen, Kim; Kubota, Miles; Arco, Jon del; Feng, Chao; Singha, Monika; Beasley, Samantha; Sakr, Jasmine; Gandhi, Sunil P.; Blurton-Jones, Matthew; Fernandez Lucas, Jesus; Spitale, Robert C. published an article.COA of Formula: C5H6N2O3 The title of the article was A Bump-Hole Strategy for Increased Stringency of Cell-Specific Metabolic Labeling of RNA. And the article contained the following:

Profiling RNA expression in a cell-specific manner continues to be a grand challenge in biochem. research. Bioorthogonal nucleosides can be used to track RNA expression; however, these methods currently have limitations due to background and incorporation of analogs into undesired cells. Herein, the authors design and demonstrate that uracil phosphoribosyltransferase can be engineered to match 5-vinyluracil for cell-specific metabolic labeling of RNA with exceptional specificity and stringency. The experimental process involved the reaction of 5-(Hydroxymethyl)pyrimidine-2,4(1H,3H)-dione(cas: 4433-40-3).COA of Formula: C5H6N2O3

The Article related to rna expression vinyl uracil metabolic labeling, Biochemical Methods: Other (Not Covered At Other Subsections) and other aspects.COA of Formula: C5H6N2O3

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia