Trifluoroacetic acid → (2-morpholin-4-yl-ethyl)-(3-{3-[(thiophen-3-ylmethyl)-amino]-phenyl}-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-amine

Participants

Reaction Steps

To the stirred solution of (2-morpholin-4-yl-ethyl)-[3-{3-[(thiophen-3-ylmethyl)-amino]-phenyl}-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-yl]-amine (150 mg, 0.265 mmol) in dichloromethane (3 mL) was added TFA (3 mL) at room temperature. The resulting mixture was stirred for another two hours at this temperature. The solvent was then evaporated under reduced pressure and the pH of the residue was adjusted to 8 with saturated NaHCO3. The resulting mixture was extracted with EtOAc (10 mL). The organic layer was dried and concentrated. It was purified by prep-HPLC to give (2-morpholin-4-yl-ethyl)-(3-{3-[(thiophen-3-ylmethyl)-amino]-phenyl}-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-amine. (Yield 70 mg, 61%).

Provenance & Evidence