640735-23-5,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.640735-23-5,4-Fluoro-7-azaindole,as a common compound, the synthetic route is as follows.
[0723] To a stirred solution of 4-fluoro-1H-pyrrolo [2,3-bj pyridine (1.4 g, 10 mmol) in DMF (42 mL) at 0 C under an argon atmosphere were added potassium carbonate (2.1 g, 15 mmol) and methyl iodide (1.75 g, 12 mmol). The reaction mixture was warmed to room temperature and stirred for 12 h. After consumption of starting material (by TLC), the reaction mixture was diluted with water (100 mL) and extracted with EtOAc (2 x 50 mL). The combined organic extracts were dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was purified by column chromatography using 15%EtOAc:Hexane to afford 4-fluoro-1-methyl-1H-pyrrolo [2,3-bj pyridine (700 mg, 45%) as pale brown liquid. ?H NMR (CDC13, 400 MHz): 8.26 (dd, 1H), 7.12 (d, 1H), 6.78 (dd, 1H), 6.51 (d, 1H), 3.90 (s, 3H); TLC: 20% EtOAc Hexane (Rj: 0.5).
The synthetic route of 640735-23-5 has been constantly updated, and we look forward to future research findings.
Reference：
Patent; FORUM PHARMACEUTICALS INC.; BURNETT, Duane, A.; BURSAVICH, Matthew, Gregory; HARRISON, Bryce, Alden; (273 pag.)WO2017/31325; (2017); A1;,
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