Adding a certain compound to certain chemical reactions, such as: 149849-92-3, 2-Chloropyrimidine-4-carboxylic acid, 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, Quality Control of 2-Chloropyrimidine-4-carboxylic acid, blongs to pyrimidines compound. Quality Control of 2-Chloropyrimidine-4-carboxylic acid
In a 100 mL flask was 2-chloropyrimidine-4-carboxylic acid (216 mg, 1.362 mmol) and 6-fluoro-4-(2-vinylmorpholino)pyridin-3-amine (304 mg, 1.362 mmol) in Ethyl acetate (3 mL) to give a tan solution. Hunig’s base (0.713 mL, 4.09 mmol) and 1- propanephosphonic acid cyclic anhydride (2.432 mL, 4.09 mmol) were added. The mixture was stirred at rt over the weekend for 66 h. LCMS showed conversion to the desired product. The mixture was basified with IN NaOH and diluted with EtOAc and water. The layers were separated. The aqueous layer was extracted with EtOAc. The combined organic layers were washed with water, brine, dried and concentrated to afford the desired product (459 mg, 93%) as a tan oil/solid: 1H NMR (400 MHz, Chloroform-d) delta 10.51 (s, 1H), 9.24 (d, J = 0.7 Hz, 1H), 8.93 (d, J = 4.9 Hz, 1H), 8.13 (d, J = 4.9 Hz, 1H), 6.64 (d, J = 1.9 Hz, 1H), 5.51 (ddd, J = 17.8, 10.3, 7.7 Hz, 1H), 5.19 – 5.09 (m, 2H), 4.09 – 3.96 (m, 3H), 3.75 (td, J = 7.8, 2.9 Hz, 1H), 3.67 (dd, J = 11.2, 8.0 Hz, 1H), 3.11 (dt, J = 12.1, 3.1 Hz, 1H), 2.82 (ddd, J = 12.2, 9.1, 3.1 Hz, 1H); 19F NMR (376 MHz, Chloroform-d) delta -69.23; MS (ESI) (m/z): 364.2 (M+H)+.
The synthetic route of 149849-92-3 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; LUO, Guanglin; SIVAPRAKASAM, Prasanna; DUBOWCHIK, Gene M.; MACOR, John E.; (45 pag.)WO2018/98413; (2018); A1;,
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