反应详情

(R)-Methyl 4-(4-(2-(tert-butoxycarbonylamino)-3-(4-chlorophenyl)propanoyl)piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (0.025 g, 0.046 mmol) was placed in DCM (3 mL) at room temperature. TFA (0.3 mL) was then added. The reaction was stirred at room temperature for 1 hour and then concentrated. The resulting residue was dissolved in minimal DCM and added to a stirring solution of 1M HCl in ether. The resulting solid (R)-methyl 4-(4-(2-amino-3-(4-chlorophenyl)propanoyl)piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (0.015 g, 74% yield) was collected and dried as the dihydrochloride salt. MS ESI (+) m/z 442 detected.

1. concentrationconcentrated
2. dissolutionThe resulting residue was dissolved in minimal DCM
3. additionadded to a stirring solution of 1M HCl in ether