The important role of 3-Bromo-5-fluoroisonicotinic acid

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,955372-86-8, its application will become more common.

Synthetic Route of 955372-86-8, In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 955372-86-8 as follows.

Step 2: Preparation of methyl 3-bromo-5-fluoroisonicotinate TMSCHN2 (180 mL, 360 mmol, 2 equiv) was added into a solution of 3-bromo-5-fluoroisonicotinic acid (40 g, 182 mmol, 1 equiv), THF (240 mL), and MeOH (80 mL) dropwise with stirring at 0 C. under nitrogen. The resulting solution was stirred for 3 h at room temperature. The resulting mixture was concentrated under vacuum. The residue was purified by a silica gel column eluting with ethyl acetate/petroleum ether (1/9) to afford the title compound (35 g, 83%) as yellow oil.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,955372-86-8, its application will become more common.

Reference:
Patent; Genentech, Inc.; Terrett, Jack Alexander; Chen, Huifen; Constantineau-Forget, Lea; Larouche-Gauthier, Robin; Lepissier, Luce; Beaumier, Francis; Dery, Martin; Grand-Maitre, Chantal; Sturino, Claudio; Volgraf, Matthew; Villemure, Elisia; (138 pag.)US2019/284179; (2019); A1;,
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