Brief introduction of Pyrazolo[1,5-a]pyridine-2-carboxylic acid

The synthetic route of 63237-88-7 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 63237-88-7, Pyrazolo[1,5-a]pyridine-2-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, Recommanded Product: 63237-88-7, blongs to pyridine-derivatives compound. Recommanded Product: 63237-88-7

Step (d) N-((ls,4s)-4-(2-(3′-(((3S,5R)-3,5-dimethylpiperazin-l-yl)methyl)biphenyl-3- yloxyJ-S-fluoronicotinamidoJcyclohexylJpyrazolo [ 1 ,5-a] pyridine-2-carboxamideTo a suspension of N-((ls,4s)-4-aminocyclohexyl)-2-(3′-(((3S,5R)-3,5-dimethylpiperazin-l- yl)methyl)biphenyl-3-yloxy)-5-fluoronicotinamide (210 mg, 0.35 mmol) in acetonitrile (4.2 mL) was added pyrazolo[l,5-a]pyridine-2-carboxylic acid (70.4 mg, 0.43 mmol) and triethylamine (484 mul, 3.47 mmol). 1-Propanephosphonic acid cyclic anhydride, 1.57M solution in THF (277 mul, 0.43 mmol) was then added and the mixture stirred at RT for 2 hours. The mixture was evaporated to dryness and the residue dissolved in DCM (100 mL) and washed with saturated NaHCO3 (aq), brine, dried (MgSO^ and evaporated to give a foam. This was purified by HPLC to give the title compound as a white solid. Yield: 197 mg 1H NMR (400 MHz, CD3OD) delta 8.48 (d, J = 7.2 Hz, IH), 8.39 (d, J = 7.5 Hz, IH), 8.13 (d, J = 3.1 Hz, IH), 8.10 – 8.05 (m, IH), 7.68 – 7.63 (m, IH), 7.58 – 7.55 (m, IH), 7.54 – 7.47 (m, 3H), 7.45 – 7.42 (m, IH), 7.36 – 7.17 (m, 4H), 6.96 – 6.92 (m, 2H), 4.19 – 4.12 (m, IH), 4.04 -3.97 (m, IH), 3.72 (s, 2H), 3.44 – 3.34 (m, 2H), 3.15 – 3.09 (m, 2H), 2.20 (t, J = 12.4 Hz, 2H),1.98 – 1.68 (m, 8H), 1.24 (d, J = 6.7 Hz, 6H). MS: [M+H]+=676 (calc=676) (MultiMode+)

The synthetic route of 63237-88-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2009/144494; (2009); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem