Hydrazine → HCID 178511227, compound

Participants

Reaction Steps

An ethanolic solution of trans-2-{4-[8-Amino-1-(2-phenylquinolin-7-yl)-imidazo[1,5-a]pyrazin-3-yl]-cyclohexylmethyl}-isoindole-1,3-dione (265 mg, 0.46 mmol) was charged with an excess of hydrazine (0.14 mL, 4.6 mmol) and allowed to stir at rt for 16 h. The solution was filtered through a fritted glass funnel and the solids were washed with EtOH (4×). The filtrate was concentrated and the crude material was purified by silica gel column chromatography [Jones Flashmaster, 5 g/25 mL cartridge, eluting with 2%˜7N NH3 in MeOH/CH2Cl2 to 4%˜7N NH3 in MeOH/CH2Cl2]. The purified material was recrystallized from CH2Cl2/hexanes to afford the desired product as a yellow solid; 1H NMR (CDCl3, 400 MHz) δ 1.16-1.26 (m, 2H), 1.58-1.65 (m, 1H), 1.87-1.99 (m, 2H), 2.02-2.09 (m, 2H), 2.13-2.22 (m, 2H), 2.72 (d, 2H, J=6.4 Hz), 2.92-3.01 (m, 1H), 7.10 (d, 1H, J=5.2 Hz), 7.25-7.28 (m, 1H), 7.42-7.55 (m, 3H), 7.89-7.94 (m, 3H), 8.18-8.20 (m, 2H), 8.24 (d, 1H, J=8.8 Hz), 8.39-8.41 (m, 1H); MS (ES+): m/z 449.0 [MH+]; HPLC: tR=2.0 min (Micromass Platform II, nonpolar—5 min).

Provenance & Evidence