Month: September 2021

Reference of 13466-38-1, 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 13466-38-1, name is 5-Bromopyridin-2-ol. This compound has unique chemical properties. The synthetic route is as follows.

A mixture of 5-bromopyridin-2-ol (1 g, 5.75 mmol), ClCF2COONa (0.876 g, 5.75 mmol), Cs2CO3 (2.81 g, 8.62 mmol) in DMF (20 mL) was heated at 100oC for 3h. LCMS indicated that the desired compound was formed.40 mL of water and 40 mL of EA were added to the reaction mixture. The organic phase was separated, washed with water(20 mL), brine(20 mL), dried over Na2SO4, filtered and concentrated under vacuum to give a residue, which was purified by silica gel chromatography (PE/EA=100/1) to give the title compound as a colorless oil (0.3g, 23.30%).

According to the analysis of related databases, 13466-38-1, the application of this compound in the production field has become more and more popular.

Reference:
Patent; EDGEWISE THERAPEUTICS, INC.; HUNT, Kevin; KOCH, Kevin; RUSSELL, Alan; SCHLACHTER, Stephen; WINSHIP, Paul; STEELE, Chris; UZOHO, Grace; (219 pag.)WO2020/97265; (2020); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 16135-36-7, 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 16135-36-7, name is Methyl 4-aminonicotinate. This compound has unique chemical properties. The synthetic route is as follows.

To a solution of dichloromethane (100 mL), 4-amino-nicotinic acid methyl ester (4.60 g, 30.2 [MMOL)] and diisopropylethyl amine (8.25 mL, 46.7 [MMOL),] was added (1-fluorocarbonyl-2-methyl-propyl)-carbamic acid benzyl ester (11.8 g, 46.7 [MMOL)] at room temperature and the mixture stirred overnight. The solvent was removed under reduced pressure and the residue purified by flash silica gel chromatography using hexane-EtOAc (stepwise gradient from 3: 1 to 1: 1) as eluents to obtain the desired amide of Formula 506, 4- (2-benzyloxycarbonylamino-3-methyl- butyrylamino)-nicotinic acid methyl ester (10.5 g, 90. 1%). MS [(CI)] M/E: 386.2.

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 16135-36-7, Methyl 4-aminonicotinate.

Reference:
Patent; CYTOKINETICS, INC.; SMITHKLINE BEECHAM CORPORATION; WO2003/103575; (2003); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

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. 135795-46-9, name is 3-Amino-2-bromo-6-methoxypyridine, molecular formula is C6H7BrN2O, 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. Quality Control of 3-Amino-2-bromo-6-methoxypyridine

b N-(2-Bromo-6-methoxy-3-pyridinyl)-2-chloro-3-pyridinecarboxamide To a solution of 3-amino-2-bromo-6-methoxypyridine (2.7 g) in methylene chloride (20 ml) and pyridine (1 ml) was added 2-chloronicotinoyl chloride (2.2 g), and the resulting mixture was stirred 20 min. The mixture was then diluted with methylene chloride (100 ml), washed with water (100 ml), dried (anhydrous magnesium sulfate), and concentrated. The semisolid residue was saturated with hexane, filtered, and dried to give 4.1 g of product suitable for use in the next reaction.

With the rapid development of chemical substances, we look forward to future research findings about 135795-46-9.

Reference:
Patent; Boehringer Ingelheim Pharmaceuticals, Inc.; US5366972; (1994); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem