反应详情

Sodium iodide (0.006 g, 0.04 mmol) was added to a stirred mixture of 9-(4-chlorobutyl)-2-(cyclohexyloxy)-8-(methyloxy)-9H-purin-6-amine (0.103 g, 0.303 mmol), N,N-diisopropylethylamine (0.105 ml, 0.079 g, 0.609 mmol) and piperidine (0.120 ml, 0.103 g, 1.215 mmol) in DMF (1.5 ml). The resultant mixture was heated at 80° C. for 20 hours when LCMS showed the formation of two products, one corresponding to displacement of the chloride by piperidine and the second corresponding to concomitant hydrolysis of the 8-methoxy moiety. The reaction mixture was partitioned between dichloromethane (6 ml) and water (6 ml) and the phases separated using a hydrophobic frit. The solvent was removed from the organic phase under a stream of nitrogen in a blow-down unit and the residue was dissolved in 1:1 MeOH:DMSO (2 ml) and separated by mass directed autopreparation (Method A) to afford the title compound as a white solid (16.6 mg).

1. customThe reaction mixture was partitioned between dichloromethane (6 ml) and water (6 ml)
2. customthe phases separated
3. customThe solvent was removed from the organic phase under a stream of nitrogen in a blow-down unit
4. dissolutionthe residue was dissolved in 1:1 MeOH
5. customDMSO (2 ml) and separated by mass