Category: 1126-44-9

Application of 1126-44-9, 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. 1126-44-9, name is 2-Methylsulfanylpyrimidine-4-carboxylic acid, molecular formula is C6H6N2O2S, 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.

(c). 2-Methylsulfanyl-pyrimidin-4-yl)-methanol; At O0C oxalyl chloride (295 mul) was added to a solution of DMF (91.2 mul) in dichloromethane (2 ml). After stirring at O0C for 1 h, the reaction mixture was concentrated in vacuo. The residue was dissolved in acetonitrile (2 ml) and THF (3 ml), followed by portion wise addition of the product of example 21b (200 mg) at O0C in a nitrogen atmosphere. After stirring at O0C for 15 min, the reaction mixture was cooled (-780C) and 2M NaBH4 in DMF (590 mul) was added. After stirring at -2O0C for 3 h, the reaction mixture was quenched with 2N HCl and concentrated in vacuo. The residue was dissolved in water and the remaining solution was adjusted to pH 11 with 2N NaOH, followed by extraction with dichloromethane. The organic layer was separated, dried (MgSO4), filtered and concentrated in vacuo. Yield: 180 mg. MS-ESI: [M+H]+ = 156

According to the analysis of related databases, 1126-44-9, the application of this compound in the production field has become more and more popular.

Reference:
Patent; N.V. ORGANON; WO2006/117368; (2006); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.1126-44-9, name is 2-Methylsulfanylpyrimidine-4-carboxylic acid, molecular formula is C6H6N2O2S, molecular weight is 170.189, as common compound, the synthetic route is as follows.Safety of 2-Methylsulfanylpyrimidine-4-carboxylic acid

The starting material 2-methylsulfanyl-pyrimidine-4-carboxylic acid methoxy-methyl-amide can be prepared as follows. Preparation of 2-methylsulfanyl-pyrimidine-4-carboxylic acid methoxy-methyl-amide: To a slurry of 2-methylsulfanyl-pyrimidine-4-carboxylic acid (10.0 g, 59.2 mmol) in CH3CN (300 mL) is added in sequence: I-hydroxybenzotriazole hydrate (9.59 g, 71.0 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (13.6 g, 71.0 mmol), N,O-dimethylhydroxylamine hydrochloride (8.66 g, 88.8 mmol), and triethylamine (Et3N) (24.9 mL, 178 mmol). The resulting slurry is stirred overnight at ambient temperature. After 16 hours, the reaction mixture is poured into a saturated aqueous solution of sodium bicarbonate (300 mL) and the layers separated. The aqueous layer is extracted with ethyl acetate (3×250 mL). The combined organic layers are washed with brine, dried over sodium sulfate, filtered and concentrated in vacuo and the resulting residue is purified over silica (100% EtOAc) to afford 10.1 g (89% yield) of the desired product as a yellow oil. 1H NMR (300 MHz, CDCl3) delta 8.65 (d, J=4.9 Hz, 1H), 7.15 (br s, 1H), 3.77 (br s, 3H), 3.38 (br s, 3H), 2.61 (s, 3H); MS (ESI) m/z 214 (M+1).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,1126-44-9, 2-Methylsulfanylpyrimidine-4-carboxylic acid, and friends who are interested can also refer to it.

Reference:
Patent; The Procter & Gamble Company; US2005/113392; (2005); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia