[Cl:1][C:2]1[N:7]=[C:6](Cl)[C:5]([CH3:9])=[CH:4][N:3]=1.[NH2:10][CH:11]1[C:15]2([CH2:19][CH2:18][CH2:17][CH2:16]2)[CH2:14][N:13]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:12]1.CCN(CC)CC>CCO>[Cl:1][C:2]1[N:7]=[C:6]([NH:10][CH:11]2[C:15]3([CH2:19][CH2:18][CH2:17][CH2:16]3)[CH2:14][N:13]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:12]2)[C:5]([CH3:9])=[CH:4][N:3]=1To a solution of 2,4-dichloro-5-methylpyrimidine (0.5 g, 3.07 mmol) and tert-butyl 4-amino-2-azaspiro[4.4]nonane-2-carboxylate (0.77 g, 3.22 mmol) in EtOH (15 mL) was added Et3N (0.62 g, 6.13 mmol) and the mixture was stirred at rt for 24 h, then concentrated in vacuo. The residue was purified by silica gel column chromatography (PE/EtOAc (v/v)=2/1) to give the product as colourless oil (0.23 g, 21%).
Wird geladen…