Continuously updated synthesis method about 1152582-56-3

The synthetic route of 1152582-56-3 has been constantly updated, and we look forward to future research findings.

Reference of 1152582-56-3, These common heterocyclic compound, 1152582-56-3, name is 2-(1-Methyl-1H-pyrazol-4-yl)acetic acid, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

To a suspension of 6-(3-methylimidazol-4-yl)isoquinolin-3-amine (XLVIII) (100 mg, 0.45 mmol), 2-(1-methylpyrazol-4-yl)acetic acid (XLIX (purchased from Enamine) (75 mg, 0.54 mmol), DMAP (27.2 mg, 0.22 mmol) and HATU (203.5 mg, 0.54 mmol) in DMF (5 mL) was added DIPEA (0.19 mL, 1.1 mmol). The resulting mixture was stirred at 80 C. for 1.5 h. The reaction mixture was cooled to room temperature and poured into water. The resulting solid was filtered and purified by silica gel chromatography (0?10% MeOH/CHCl3). The fractions containing the product were concentrated. The product was further purified by HPLC (0?35% MeCN/water) and the fractions containing the product concentrated, re-dissolved in MeOH and filtered through bicarbonate resin. The filtrate was concentrated and triturated in ether, filtered and dried under high vacuo to afford N-(6-(1-methyl-1H-imidazol-5-yl)isoquinolin-3-yl)-2-(1-methyl-1H-pyrazol-4-yl)acetamide 47 as a white solid (20.0 mg, 0.058 mmol, 12.9% yield). 1H NMR (499 MHz, DMSO-d6) delta ppm 3.59 (2H, s), 3.79 (3H, s), 3.82 (3H, s), 7.30 (1H, d, J=0.82 Hz), 7.36 (1H, s), 7.61 (1H, s), 7.67 (1H, dd, J=8.51, 1.65 Hz), 7.79 (1H, s), 7.99 (1H, s), 8.09 (1H, d, J=8.51 Hz), 8.50 (1H, s), 9.13 (1H, s), 10.66 (1H, s); ESIMS found for C19H18N6O m/z 347.2 (M+1).

The synthetic route of 1152582-56-3 has been constantly updated, and we look forward to future research findings.