New downstream synthetic route of 946161-16-6

According to the analysis of related databases, 946161-16-6, the application of this compound in the production field has become more and more popular.

Related Products of 946161-16-6, 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. 946161-16-6, name is (R)-Methyl 2-((2-chloro-5-nitropyrimidin-4-yl)(isopropyl)amino)butanoate, molecular formula is C12H17ClN4O4, 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.

Step 3 (7R)-2-Chloro-7-ethyl-8-isopropyl-5,7-dihydropteridin-6-one Methyl (2R)-2-[(2-chloro-5-nitro-pyrimidin-4-yl)-isopropyl-amino]butanoate 22b (7.30 g, 23 mmol) was dissolved in 100 mL acetic acid followed by the addition of 5g Raney nickel, repeated filled with hydrogen for three times. The reaction mixture was heated to 75 C., stirred for 2 hours and filtered. The filtrate was concentrated under reduced pressure, added with 30 mL of ice water resulting in the formation of precipitate. The precipitate was filtered. the filter cake was dried by heat to obtain the crude title compound (7R)-2-chloro-7-ethyl-8-isopropyl-5,7-dihydropteridin-6-one 22c (12.10 g, yield: 71.7%) as a gray solid, which was used in the next step without further furification.MS m/z (ESI): 255.1 [M+1]

According to the analysis of related databases, 946161-16-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD.; JIANGSU HENGRUI MEDICINE CO., LTD.; US2012/184543; (2012); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia