反应详情

To a solution of methyl hex-5-enoate (12 mg, 0.1 mmol) in THF (0.5 ml) under argon at 0° C. was added 9-BBN (0.2 mmol, 0.4 ml of 0.5 M solution in THF). The mixture was warmed to room temperature and stirred for 16 h. Potassium phosphate (3 M in H2O, 0.2 mmol) was added followed by the addition of 5-chloro-3-(quinolin-3-yl)-N,N-bis((2-(trimethylsilyl)ethoxy)methyl)pyrazolo[1,5-a]pyrimidin-7-amine (50 mg, 0.09 mmol) in DMF (0.5 ml) and Pd(dppf)Cl2—CH2Cl2 (5 mg, 0.005 mmol). The reaction mixture was heated at 90° C. for 16 h under argon. The solution was cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in 2:1 THF: MeOH (3 mL) and was treated with 2N NaOH(aq) (0.25 mL). The resulting solution was stirred at room temperature for 4 hours followed by the addition of 2N hydrochloride solution (1.0 ml). The solution was heated at 65° C. for 2 h, cooled to room temperature, concentrated in vacuo and purified by prep-LC to afford the title compound (8.2 mg): LC/MS RT=2.74 min. Mass calculated for, M+H 376.17, observed 376.17.

1. temperatureThe reaction mixture was heated at 90° C. for 16 h under argon
2. temperatureThe solution was cooled to room temperature
3. concentrationconcentrated under reduced pressure
4. dissolutionThe residue was dissolved in 2:1 THF
5. additionMeOH (3 mL) and was treated with 2N NaOH(aq) (0.25 mL)
6. stirringThe resulting solution was stirred at room temperature for 4 hours
7. additionfollowed by the addition of 2N hydrochloride solution (1.0 ml)
8. temperatureThe solution was heated at 65° C. for 2 h
9. temperaturecooled to room temperature
10. concentrationconcentrated in vacuo
11. custompurified by prep-LC