反应详情

To a suspension of methyl 6-[2-(butan-2-yl)-6-chloro-5-methoxyindol-1-ylmethyl]pyridine-2-carboxylate (125 mg) in ammonia (Ca. 7 mol/L methanol solution, 20.1 mL) was added tetrahydrofuran (6.7 mL) at room temperature, followed by stirring for 27 hours. The reaction mixture was concentrated under reduced pressure to obtain the title compound (120 mg). 1H-NMR (CDCl3) δ ppm: 0.86 (3H, t, J=7.5 Hz), 1.25 (3H, d, J=6.9 Hz), 1.45-1.80 (2H, m), 2.65-2.80 (1H, m), 3.93 (3H, s), 5.39 (2H, s), 5.45-5.65 (1H, br), 6.30 (1H, s), 6.65-6.75 (1H, m), 7.11 (1H, s), 7.19 (1H, s), 7.60-7.80 (2H, m), 8.00-8.15 (1H, m).

1. concentrationThe reaction mixture was concentrated under reduced pressure