反应详情

To KH (35%; (0.34 g; 0.0029 mole) in THF (8 ml) under N2 and cooled in an ice bath is added N-trityl-5-hydroxytricyclo-[3.3.1.13,7 ]decan-2-amine (1.0 g; 0.0025 mole) This forms a pale yellow solution and is stirred at room temperature for 1 hour. The reaction mixture is then cooled in ice and 4-(benzoxazol-2-yl)benzyl bromide (0.7 g; 0.0025 mole) is added all at once. The mixture is stirred for 1/2 hour with ice cooling and then 31/2 hours at room temperature then cooled in ice and MeOH is added to quench the KH. The mixture is evaporated to dryness. Purification is accomplished on HPLC eluting with a gradient system staring with 10% and ending with 20% ethyl acetate/hexane to obtain N-trityl-5-[4-(benzoxazol-2-yl)benzyloxy]tricyclo[3.3.1.13,7 ]decan-2-amine which is used directly in step F.

1. temperatureThe reaction mixture is then cooled in ice
2. stirringThe mixture is stirred for 1/2 hour with ice cooling
3. temperature31/2 hours at room temperature then cooled in ice
4. customto quench the KH
5. customThe mixture is evaporated to dryness
6. customPurification
7. washeluting with a gradient system