Reaktion #166695

Reaktionsgleichung

(R)-tert-Butyl 1-(4-(5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)-3-(4-chlorophenyl)-1-oxopropan-2-ylcarbamate

TFA

→

(R)-2-amino-1-(4-(5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)-3-(4-chlorophenyl)propan-1-one

Ausbeute 88.7%

Lösungsmittel

DCM

Reaktionsbedingungen

Aufarbeitung

1. 1
   Einengenconcentrated
2. 2
   workup.DISSOLUTIONThe resulting residue was dissolved in minimal DCM
3. 3
   workup.ADDITIONadded to a stirring solution of 1M HCl in ether

Vorschrift

(R)-tert-Butyl 1-(4-(5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)-3-(4-chlorophenyl)-1-oxopropan-2-ylcarbamate (0.022 g, 0.039 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)-2-amino-1-(4-(5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)-3-(4-chlorophenyl)propan-1-one (0.016 g, 88% yield) was collected and dried as the dihydrochloride salt. MS ESI (+) m/z 463 detected.

Quelle