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 937046-98-5 as follows. name: 7-Bromopyrrolo[2,1-f][1,2,4]triazin-4-amine
Step 5: 7-Vinylpyrrolo[2,1-f][1,2,4]triazin-4-amine In a sealed flask a mixture of 4,4,5,5-tetramethyl-2-vinyl-1,3,2-dioxaborolane (from Aldrich, 1.52 g, 9.86 mmol), 7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine (from J & W Pharm Lab, 1.50 g, 7.04 mmol) and N,N-diisopropylethylamine (3.7 mL, 21 mmol) in 1,4-dioxane (20 mL) and water (0.97 mL) was stirred and flushed with N2 for 5 min before bis(tri-t-butylphosphine)palladium (540 mg, 1.0 mmol) was added. The reaction mixture was sealed and heated at 110 C. in an oil bath for 60 min, filtered through a pad of celite and concentrated. The crude was purified by Biotage silica gel column chromatography (40 g column, 0 to 100% EtOAc in hexanes) to give the desired product as white powders (541 mg, 48%). LCMS calcd for C8H9N4 (M+H)+: m/z=161.1. Found: 161.1.
According to the analysis of related databases, 937046-98-5, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Incyte Corporation; Li, Yun-Long; Wang, Xiaozhao; Barbosa, Joseph; Burns, David M.; Feng, Hao; Glenn, Joseph; He, Chunhong; Huang, Taisheng; Mei, Song; Zhuo, Jincong; (169 pag.)US2017/275290; (2017); A1;,
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