Acetic Acid → HCID 68295346, compound

Participants

Reaction Steps

To a stirred solution of -cyclopentyl-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-6-formyl-1H-indazole-4-carboxamide (0.1 g, 0.255 mmol) in methanol (2 mL) was added acetic acid (0.015 g, 0.255 mmol) and 1-methylpiperazine (0.077 g, 0.765 mmol) and stirred it at room temperature for 3 h. NaBH3CN (0.016 g, 0.255 mmol) was then added. The resulting reaction mixture was stirred at room temperature overnight. After completion of reaction, the solvent was removed under reduced pressure and water was added. Extraction was carried out using 10% MeOH/DCM. The combined organic layers were washed with water, dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford crude material which was purified by column chromatography to give 1-cyclopentyl-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-6-((4-methylpiperazin-1-yl)methyl)-1H-indazole-4-carboxamide (0.027 g, 28.8%). LCMS: 477.25 (M+1)+; HPLC: 99.71% (@ 254 nm) (Rt; 4.649); 1H NMR (DMSO-d6, 400 MHz) δ 11.53 (s, 1H), 8.39 (t, 1H, J=4.8 Hz), 8.27 (s, 1H), 7.71 (s, 1H), 7.50 (s, 1H), 5.89 (s, 1H), 5.19-5.14 (m, 1H), 4.35 (d, 2H, J=5.2 Hz), 3.58 (s, 2H), 2.39-2.33 (m, 8H), 2.21 (s, 3H), 2.12 (s, 3H), 2.07 (s, 3H), 2.00 (m, 2H), 1.99-1.96 (m, 2H), 1.91-1.86 (m, 2H), 1.69-1.68 (m, 2H).

Provenance & Evidence