反应详情

To a mixture of {4-[3-{6-[(thiophen-3-ylmethyl)-amino]-pyridin-2-yl}-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester (415 mg, 0.638 mmol) in dichloromethane (5 mL) was added CF3COOH (5 mL). The mixture was stirred at room temperature for 2 hours. The solvent was removed under reduced pressure. A saturated aqueous solution of NaHCO3 was added to the residue, and then extracted with ethyl acetate (3×15 mL). The combined organic phase was dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. After purification by prep-HPLC, concentrated HCl was added to the fractions with product and concentrated under reduced pressure to give N-(3-{6-[(thiophen-3-ylmethyl)-amino]-pyridin-2-yl}-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-cyclohexane-1,4-diamine; hydrochloride. (Yield 27 mg).

1. customThe solvent was removed under reduced pressure
2. additionA saturated aqueous solution of NaHCO3 was added to the residue
3. extractionextracted with ethyl acetate (3×15 mL)
4. dry with materialThe combined organic phase was dried over anhydrous Na2SO4
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customAfter purification by prep-HPLC, concentrated HCl
8. additionwas added to the fractions with product
9. concentrationconcentrated under reduced pressure