Category: 1439-10-7

Application of 1439-10-7, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 1439-10-7, name is 4-Amino-5-bromopyrimidine. This compound has unique chemical properties. The synthetic route is as follows.

A mixture of 5-bromopyrimidin-4-amine (1 g, 5.78 mmol), iodobenzene (1.18 g, 5.78 mmol), xantphos (334 mg, 0.578 mmol), sodium tert-butoxide (1.66 g, 17.34 mmol) and tris(dibenzylideneacetone)dipalladium (0) (0.52 g, 0.58 mmol) in dioxane was degassed with nitrogen, heated to 110 C. and stirred for 24 hours. The reaction was cooled to r.t, poured into water and extracted with EtOAc (3×100 mL). The combined organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuum. The residue was purified by flash chromatography (EtOAc/DCM=80%) to give 9H-pyrimido[4,5-b]indole (370 mg, 37.9% yield) as a yellow solid. LC/MS (ESI, m/z): [M+1]+=170.0.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 1439-10-7, 4-Amino-5-bromopyrimidine.

Reference:
Patent; Kymera Therapeutics, Inc.; Ji, Nan; Kluge, Arthur F.; Weiss, Matthew M.; Zhang, Yi; (180 pag.)US2020/10468; (2020); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Application of 1439-10-7, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 1439-10-7, name is 4-Amino-5-bromopyrimidine. This compound has unique chemical properties. The synthetic route is as follows.

A mixture of 5-bromopyrimidin-4-amine (1 g, 5.78 mmol), iodobenzene (1.18 g, 5.78 mmol), xantphos (334 mg, 0.578 mmol), sodium tert-butoxide (1.66 g, 17.34 mmol) and tris(dibenzylideneacetone)dipalladium (0) (0.52 g, 0.58 mmol) in dioxane was degassed with nitrogen, heated to 110 C. and stirred for 24 hours. The reaction was cooled to r.t, poured into water and extracted with EtOAc (3×100 mL). The combined organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuum. The residue was purified by flash chromatography (EtOAc/DCM=80%) to give 9H-pyrimido[4,5-b]indole (370 mg, 37.9% yield) as a yellow solid. LC/MS (ESI, m/z): [M+1]+=170.0.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 1439-10-7, 4-Amino-5-bromopyrimidine.

Reference:
Patent; Kymera Therapeutics, Inc.; Ji, Nan; Kluge, Arthur F.; Weiss, Matthew M.; Zhang, Yi; (180 pag.)US2020/10468; (2020); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Synthetic Route of 1439-10-7, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1439-10-7, name is 4-Amino-5-bromopyrimidine, molecular formula is C4H4BrN3, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

Steps 1-3 A mixture of N-Boc-6-bromoindoline (0.66 g, 2.2 mmol), bis(pinacolato)diboron (1.118 g, 4.4 mmol), KOAc (0.65 g, 6.6 mmol.), and PdCl2(dppf) (0.069 g, 0.08 mmol) in dioxane (8 mL) was heated at 100 C. for 1.5 h in a 15 mL sealed tube and then cooled to RT. The reaction was treated with 4-amino-5-bromopyrimidine (0.76 g, 4.4 mmol) and aqueous K2CO3 (4 mL, 1M) and heated at 100 C. overnight. The mixture was diluted with aqueous K2CO3 and extracted with DCM. The organic extracts were dried over MgSO4 and concentrated. Chromatography (0-10% of (9:1 MeOH/NH3) in CH2Cl2) afforded 3A (657 mg) as a brown oil.

According to the analysis of related databases, 1439-10-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; SCHERING CORPORATION AND PHARMACOPEIA, LLC; PHARMACOPEIA, INC.; US2010/197562; (2010); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adding a certain compound to certain chemical reactions, such as: 1439-10-7, 4-Amino-5-bromopyrimidine, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, SDS of cas: 1439-10-7, blongs to pyrimidines compound. SDS of cas: 1439-10-7

The above boronate (0.2 g) was dissolved in DME: H20 (5 mL: 1 mL). 2-Amino-3-bromo- pyrimidine (0.070 g) and potassium carbonate (0.092 g) were added and the flask was flushed with N2. The mixture was stirred for 20 min, and then PDCL2 (DPPF) CH2CL2 (0.020 g) was added. The mixture was heated at 80 C for 2h, cooled to room temperature and diluted with EtOAc. The mixture was filtered, concentrated and the residue was purified by silica gel chromatography to afford the title compound (0.080 g) as a foam (713.3, M+1)

At the same time, in my other blogs, there are other synthetic methods of this type of compound,1439-10-7, 4-Amino-5-bromopyrimidine, and friends who are interested can also refer to it.

Reference:
Patent; BOEHRINGER INGELHEIM PHARMACEUTICALS, INC.; WO2004/41273; (2004); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Adding a certain compound to certain chemical reactions, such as: 1439-10-7, 4-Amino-5-bromopyrimidine, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, HPLC of Formula: C4H4BrN3, blongs to pyrimidines compound. HPLC of Formula: C4H4BrN3

Preparation 46A: 4-Aminopyrimidin-5-ylboronic acid[00148] To a vial was added 5-bromopyrimidin-4-amine (0.200 g, 1.149 mmol), bis(pinacolato)diboron (0.438 g, 1.724 mmol), and potassium acetate (0.338 g, 3.45 mmol). The vial was capped with a rubber septum and then evacuated and backfilled with N2. Dioxane (volume: 0.120 ml) was added via syringe through the septum. The reaction mixture was sparged with N2, then l, l’-bis(diphenylphosphino)ferrocenedichloropalladium(II) dichloromethane complex (0.042 g, 0.057 mmol) was added. The septum was then replaced with a Teflon screw valve and the vial sealed. The reaction mixture was heated at 105 C in a metal pie block. After 18 h, the reaction mixture was allowed to cool to room temperature. The reaction mixture was filtered through a disposable fritted funnel and the filter cake washed with EtOAc. The filtrate was concentrated to afford a brown solid. The crude material was used without further purification. MS (ESI) : m/z = 140.0 [M+H]+. HPLC Peak tr = 0.24 minutes. HPLC conditions: Column:Luna CI 8 4.6x30mm 3u A: 10:90 H20:ACN NH4OAc/B: 10:90 H20:ACN NH4OAc; 0%-95%B in 2 min; 4mL/min flow.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,1439-10-7, 4-Amino-5-bromopyrimidine, and friends who are interested can also refer to it.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; HUANG, Audris; WO2012/44537; (2012); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia