9/18 News Some tips on 916325-85-4

The synthetic route of 916325-85-4 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 916325-85-4, 5-Bromo-1H-pyrazolo[3,4-b]pyridine-3-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, Computed Properties of C7H4BrN3O2, blongs to pyridine-derivatives compound. Computed Properties of C7H4BrN3O2

To a solution of 5-bromo-1H-pyrazole[3,4-b]pyridine-3-carboxylic acid (XVIII) (0.242 g, 1 mmol) in dry DMF (5 mL) was added CDI (0.178 g, 1.1 mmol) and heated for 3 h at 65 C. under nitrogen. The solution was cooled to room temperature and N,O-dimethyl hydroxylamine hydrochloride (0.107 g, 1.1 mmol) was added to the solution. The solution was again heated for 3 h at 65 C. under nitrogen. The solution was cooled and the solvent was evaporated under reduced pressure. The residue was dissolved in DCM, washed successively with a 10% HCl solution, a saturated aqueous NaHCO3 solution and brine. The organic phase was dried over MgSO4, filtered and concentrated under reduced pressure to produce 5-bromo-N-methoxy-N-methyl-1H-pyrazolo[3,4-b]pyridine-3-carboxamide (XIX) as a white solid (260 mg, 0.91 mmol, 92% yield). 1H NMR (CDCl3) delta ppm 3.55 (s, 3H), 3.78 (s, 3H), 8.59 (d, J=3.01 Hz, 1H), 8.67 (d, J=3.01 Hz, 1H); ESIMS found for C9H9BrN4O2 m/z 285.4 (M+H).

The synthetic route of 916325-85-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Samumed, LLC; Hood, John; Kumar KC, Sunil; Wallace, David Mark; US2013/296302; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem