反应详情

To an ice cold solution of β-phthalimidopropionic acid (2.41 g., 0.011 mole) in dry tetrahydrofuran (20 ml.) is added 1,1'-carbonyldiimidazole (1.94 g., 0.011 mole) under nitrogen. The ice bath is removed and the reaction stirred for 11/2 hours before the bath is replaced and 3-amino-6-chloro-3,4-dihydro-4-hydroxy-4-(o-chlorophenyl)-quinazoline (3.22 g., 0.01 mole) in tetrahydrofuran (25 ml.) is added. The reaction is stirred for 18 hours at ambient temperature before the reaction is concentrated in vacuo. The residue is mixed with water, neutralized with sodium bicarbonate and extracted with methylene chloride. The extract is washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo to give N-[6-chloro-4-hydroxy-4-(o-chlorophenyl)-3(4H)-quinazolinyl]-1,3-dioxo-2-isoindolinepropionamide.

1. customThe ice bath is removed
2. stirringThe reaction is stirred for 18 hours at ambient temperature before the reaction
3. concentrationis concentrated in vacuo
4. additionThe residue is mixed with water
5. extractionextracted with methylene chloride
6. washThe extract is washed with brine
7. dry with materialdried over anhydrous sodium sulfate
8. concentrationconcentrated in vacuo