反应详情

Methyl 4-aminosalicylate bisulfate (5 g) is suspended in 20 mL of methanol. To the solution, 20 mL of 28% ammonium hydroxide is added slowly until all solid is dissolved. The reaction mixture is stirred at ambient conditions overnight. Solvent is removed under reduced pressure and water is lyophilized. The residue is collected, washed with minimum amount of ice water and dried to yield 2.5 g of the product as off-white powders.

1. dissolutionis dissolved
2. customSolvent is removed under reduced pressure and water
3. customThe residue is collected
4. washwashed with minimum amount of ice water
5. customdried