反应详情

To a solution of (2-chloro-9-methyl-6-morpholin-4-yl-9H-purin-8-yl)acetaldehyde (300 mg, 1.01 mmol) in DCE (20 mL) was added 2-azetidin-3-ylpropan-2-ol (118 mg, 1.02 mmol), trimethyl orthoformate (1.11 mL, 10.14 mmol) and acetic acid (0.06 mL, 1.01 mmol). The reaction mixture was stirred at room temperature for 6 h, sodium triacetoxyborohydride (323 mg, 1.52 mmol) was added and the resulting mixture stirred for a further 18 h. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge, the cartridge was washed with MeOH then the desired product eluted with 2 M NH3 in MeOH. The resulting residue was purified by column chromatography (Si—PCC, 0-10% MeOH in DCM) to give the title compound as a pale yellow oil (90 mg, 23%). LCMS (Method A): RT=2.37 min, [M+H]+ 395.2

1. stirringthe resulting mixture stirred for a further 18 h
2. washthe cartridge was washed with MeOH
3. washthe desired product eluted with 2 M NH3 in MeOH
4. customThe resulting residue was purified by column chromatography (Si—PCC, 0-10% MeOH in DCM)