Réaction #166757

Équation de réaction

Pyridin-3-ylboronic acid

sodium carbonate

(S)-tert-butyl 3-(4-(5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)-2-(4-chlorophenyl)-3-oxopropyl(isopropyl)carbamate

→

(S)-tert-butyl 2-(4-chlorophenyl)-3-oxo-3-(4-(5-(pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)propyl(isopropyl)carbamate

Rendement 64.0%

Conditions de réaction

Traitement

1. 1
   Autrein degassed (Ar) dioxane (1 mL)
2. 2
   TempératureAfter cooling down
3. 3
   workup.ADDITIONthe reaction was diluted with DCM
4. 4
   Filtrationfiltered
5. 5
   Séchagedried over MgSO4
6. 6
   Concentrationconcentrated to dryness
7. 7
   AutreThe resulting residue was purified by reverse phase column chromatography (water:ACN 4:1 to 1:9)

Mode opératoire

Pyridin-3-ylboronic acid (20 mg, 0.17 mmol), PS-tetrakis (41 mg, 0.0041 mmol) and sodium carbonate (18 mg, 0.17 mmol, 2N aqueous solution) were added to (S)-tert-butyl 3-(4-(5-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)-2-(4-chlorophenyl)-3-oxopropyl(isopropyl)carbamate (50 mg, 0.083 mmol, see Example 4) in degassed (Ar) dioxane (1 mL). The reaction was heated to 160° C. for 1 hour under microwave irradiation. After cooling down, the reaction was diluted with DCM, filtered, dried over MgSO4 and concentrated to dryness. The resulting residue was purified by reverse phase column chromatography (water:ACN 4:1 to 1:9) to yield (S)-tert-butyl 2-(4-chlorophenyl)-3-oxo-3-(4-(5-(pyridin-3-yl)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperazin-1-yl)propyl(isopropyl)carbamate (32 mg, 64% yield) as a solid.

Source