Diisopropylethylamine → HCID 68294839, compound

Participants

Reaction Steps

To a stirred solution 1-cyclopentyl-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)-methyl)-6-(5-formylfuran-2yl)-1H-indazole-4-carboxamide (0.09 g, 0.19 mmol) in methanol (2 mL), 2-(methylsulfonyl)ethanamine (0.072 g, 0.581 mmol) and DIPEA (0.05 g, 0.39 mmol) was added at room temperature and reaction stirred for 3 h. Then NaBH3CN (0.012 g, 0.196 mmol) was added and reaction stirred at room temperature for 18 h. On completion, methanol was removed under reduced pressure and then water was added to the residue. The aqueous phase was extracted with 10% MeOH/DCM and the combined organic layers were dried over sodium sulfate and concentrated to obtain crude material which was purified by column chromatography to afford 1-cyclopentyl-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-6-(5-(((2-(methylsulfonyl)ethyl)amino)methyl)furan-2-yl)-1H-indazole-4-carboxamide. LCMS: 566.90 (M+1)+; HPLC: 90.05% (@ 254 nm) (Rt; 5.253); 1H NMR (MeOD, 400 MHz) δ 8.31 (s, 1H), 8.07 (s, 1H), 7.87 (s, 1H), 6.92 (s, 1H), 6.44 (s, 1H), 6.13 (s, 1H), 5.18-5.42 (m, 1H), 4.59 (s, 2H), 4.57 (s, 2H), 3.91 (s, 2H), 3.16 (t, 2H, J=6.4 Hz), 3.02 (s, 3H), 2.42 (s, 3H), 2.25 (s, 3H), 2.19-2.23 (m, 2H), 2.11-2.14 (m, 2H), 1.98 (m, 2H), 1.80 (m, 2H).

Provenance & Evidence