反应详情

To a solution of (2-chloro-9-methyl-6-morpholin-4-yl-9H-purin-8-yl)acetaldehyde (119 mg, 0.40 mmol) in DCE (10 mL) was added 3,3-dimethylmorpholine.HCl (61 mg, 0.40mmol), triethylamine (0.06 mL, 0.40 mmol) and powdered 4 Å molecular sieves. After stirring at room temperature for 4 h, sodium triacetoxyborohydride (171 mg, 0.80 mmol) was added and the resulting mixture stirred for a further 16 h. The reaction mixture was filtered through Celite®, loaded onto an Isolute® SCX-2 cartridge, the cartridge was washed with MeOH then the desired product eluted with 2 M NH3/MeOH in DCM. The resulting residue was purified by column chromatography (Si—PCC, 0-7% MeOH in DCM) to give the title compound as a pale yellow oil (44 mg, 28%). LCMS (Method H): RT=2.45 min, [M+H]+ 395.5

1. stirringthe resulting mixture stirred for a further 16 h
2. filtrationThe reaction mixture was filtered through Celite®
3. washthe cartridge was washed with MeOH
4. washthe desired product eluted with 2 M NH3/MeOH in DCM
5. customThe resulting residue was purified by column chromatography (Si—PCC, 0-7% MeOH in DCM)