反应详情

(1R*,2R*,5S*,6R*)-8-Benzyl-2-{[3,5-bis(trifluoromethyl)phenyl]methoxy}-6-cyano-1-phenyl-8-azabicyclo[3.2.1]octane (Example 137; 4 g, 7.4 mmol), sodium azide (1.4 g, 22 mmol) and ammonium chloride (1.2 g, 22 mmol) were stirred at 120° C. in N,N-dimethylformamide (15 ml) for 20 hours. On cooling to room temperature the mixture was poured into water (250 ml) and extracted (×2) with ethyl acetate. The combined organic extracts were washed (×3) with water then dried (MgSO4), filtered and concentrated. Residue was chromatographed on silica gel eluting with 1, 2 and 4% methanol/dichloromethane to give the title compound (2.7 g, 63%).

1. extractionextracted (×2) with ethyl acetate
2. washThe combined organic extracts were washed (×3) with water
3. dry with materialthen dried (MgSO4)
4. filtrationfiltered
5. concentrationconcentrated
6. customResidue was chromatographed on silica gel eluting with 1, 2 and 4% methanol/dichloromethane