反应详情

Stir a solution of methyl 5-imidazol-1-ylpentanoate (0.60 g; 1.0 equiv; 3.29 mmoles) and lithium hydroxide (0.553 g; 4 equiv; 13.17 mmoles) in tetrahydrofuran (20 mL) and water (15 mL) for 18 hours. Add 3 ml of 5N hydrochloric acid then concentrate the mixture. Purify the crude product by column chromatography (0 to 15% methanol in dichloromethane) to afford 5-imidazol-1-ylpentanoic acid (0.72 g; 19%) as a yellow oil: MS (m/z): 169(M+1).

1. concentrationthen concentrate the mixture
2. customPurify the crude product by column chromatography (0 to 15% methanol in dichloromethane)