反应详情

4-Methylthiopyrido[4,3-d]pyrimidine (160.4 mg, 0.902 mmol), and benzylamine (106.3 mg, 0.992 mmol) in EtOH (2 mL) are heated at 80° C. for 12 h, and then the solvent is removed under reduced pressure. The resulting solid is suspended in CH2Cl21 filtered, and the resulting solid is purified by preparative tlc on silica, eluting with 5% MeOH in CHCl3. Removal of the solvent under reduced pressure yields 4-benzylaminopyrido[4,3-d]pyrimidine (36 mg, 17%). 1H NMR (DMSO) δ 9.60 (1H, s), 9.37 (1H, t, J=5.8 Hz), 8.72 (1H, d, J=5.8 Hz), 8.57 (1H, s), 7.54 (1H, d, J=5.8 Hz), 7.37 (2H, d, J=7.0 Hz), 7.33 (2H, t, J=7.3 Hz), 7.25 (1H, t, J=7.2 Hz), 4.81 (2H, d, J=5.8 Hz).

1. customthe solvent is removed under reduced pressure
2. filtrationfiltered
3. customthe resulting solid is purified by preparative tlc on silica
4. washeluting with 5% MeOH in CHCl3
5. customRemoval of the solvent under reduced pressure