Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 33332-25-1, name is Methyl 5-chloropyrazine-2-carboxylate, This compound has unique chemical properties. The synthetic route is as follows., Product Details of 33332-25-1
Trimethylaluminium (2M in toluene, 7.44 ml, 14.88 mmol) was added dropwise to a stirred suspension of 5-[(3,5-dimethoxyphenyl)methoxy]-2H-pyrazol-3-amine, HCl (1.70 g, 5.95 mmol) and methyl 5-chloropyrazine-2-carboxylate (1.03 g, 5.95 mmol) in anhydrous toluene (29.8 ml) at ambient temperature. The resulting solution was then stirred under nitrogen at ambient temperature for 18 h. The reaction mixture was quenched with methanol (5 mL) and HCl (2M aqueous solution), diluted with water (200 mL) and extracted with EtOAc (3¡Á150 mL). The organics were washed with water (200 mL), brine (200 mL) dried over MgSO4, filtered and concentrated. On evaporation a precipitate was formed which was collected by filtration, washed with MeOH (20 mL) and air dried to afford the desired compound (1.65 g, 71%) as an orange solid, which was used without further purification. 1H NMR (500.13 MHz, DMSO-d6, 373K) delta 3.78 (6H, s), 5.12 (2H, s), 5.94 (1H, s), 6.46 (1H, s), 6.62 (2H, s), 8.87 (1H, s), 9.09 (1H, s), 10.99 (1H, s), 11.24 (1H, s). MS: m/z 390 (MH+) Mean of n=1, FGFR Kinase assay-Caliper Echo Dosing, IC50 0.060 muM.
Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 33332-25-1.
Reference:
Patent; ASTRAZENECA AB; US2008/153812; (2008); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem