Trifluoroacetic acid → HCID 178507714, compound

Participants

Reaction Steps

To a stirred solution of {4-[3-{3-[(thiophen-3-ylmethyl)-amino]-phenyl}-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester (120 mg, 0.185 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 evaporated under reduced pressure and the residue was treated with saturated aqueous NaHCO3 (5 mL) and extracted with EtOAc (30 mL). The organic phase was washed with brine (5 mL) and dried to give crude product. It was purified by prep-HPLC to give N-(3-{3-[(thiophen-3-ylmethyl)-amino]-phenyl}-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-cyclohexane-1,4-diamine as solid. (Yield 75 mg, 84%).

Provenance & Evidence