Application of 31108-57-3

The synthetic route of 31108-57-3 has been constantly updated, and we look forward to future research findings.

31108-57-3, name is 1H-Pyrazole-4-carbonitrile, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Computed Properties of C4H3N3

3-(3-(4-(chloromethyl)benzyl)isoxazol-5-yl)pyridin-2 -amine (Intermediate B, 80mg, 0.27mmol) and lH-pyrazole-4-carbonitrile (99mg, l .07mmol) were dissolved in NMP (lml). Potassium 2- methylpropane-2-olate (1M in THF, 0.80mL, 0.80mmol) was added and the mixture was stirred for 5min at 60C. The cooled reaction mixture was directly purified by column chromatography (Si02, hexane/ethyl acetate). Fraction containing the product were concentrated under reduced pressure and further purified by HPLC to yield l-(4-((5-(2-aminopyridin-3-yl)isoxazol-3-yl)methyl)benzyl)-lH- pyrazole-4-carbonitrile (66mg, O. l9mmol, 69%) as a white solid. 400 MHz 1 H N R (CDCl3) d 8.13 (dd, J= 5.0, 1.8 Hz, 1H), 7.79 (dd, J= 18.1, 0.7 Hz, 2H), 7.69 (dd, J= 7.7, 1.8 Hz, 1H), 7.35 – 7.25 (m, 2H), 7.27 – 7.17 (m, 2H), 6.70 (dd, J= 7.7, 4.8 Hz, 1H), 6.25 (s, 1H), 5.43 (s, 2H), 5.30 (s, 2H), 4.05 (s, 2H). MS: 357.3 [M+H]+.

The synthetic route of 31108-57-3 has been constantly updated, and we look forward to future research findings.