反应详情

To a solution of methyl 6-chloro-5-hydroxynicotinate (3.71 g) in DMF (30 mL) were added potassium carbonate (5.47 g) and benzyl bromide (2.59 mL), and the mixture was stirred at room temperature for 30 min. Water was added to the reaction mixture at 0° C., and the resulting precipitate was collected by filtration. The obtained crude crystals were washed with water and hexane, and dried at 50° C. for 15 min under reduced pressure to give a crude product of the title compound (4.57 g) as a pale-yellow solid. This compound was used for the next step without further purification.

1. filtrationthe resulting precipitate was collected by filtration
2. customThe obtained crude crystals
3. washwere washed with water and hexane
4. customdried at 50° C. for 15 min under reduced pressure