Pyridine → HCID 57611869, compound

Participants

Reaction Steps

Tert-butyl 4-[(2S)-2-amino-3-(ethylamino)-3-oxopropyl]benzoate was dissolved in dichloromethane (3.5 mL). Pyridine (0.05 mL) and acetic anhydride (0.05 mL) were added. The reaction was allowed to stir overnight at room temperature under nitrogen. The reaction was transferred to a separatory funnel and washed with saturated sodium bicarbonate. The aqueous layer was extracted three additional times with dichloromethane. The combined organic layer was dried over sodium sulfate, filtered, and concentrated. The resulting material was purified by column chromatography. 1H NMR 600 MHz (CDCl3) δ 7.86 (d, 2H, J=8.4 Hz), 7.23 (d, 2H, J=8.4 Hz), 6.89 (s, 1H), 6.47 (s, 1H), 4.68 (m, 1H), 3.15 (m, 2H), 3.06 (m, 2H), 1.93 (s, 3H), 1.55 (s, 9H), 0.99 (m, 3H). MS: cal'd 335 (MH+), exp 335 (MH+).

Provenance & Evidence