반응 #166757

반응 방정식

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

수율 64.0%

반응 조건

후처리

1. 1
   기타in degassed (Ar) dioxane (1 mL)
2. 2
   온도After cooling down
3. 3
   workup.ADDITIONthe reaction was diluted with DCM
4. 4
   여과filtered
5. 5
   건조dried over MgSO4
6. 6
   농축concentrated to dryness
7. 7
   기타The resulting residue was purified by reverse phase column chromatography (water:ACN 4:1 to 1:9)

실험 절차

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.

출처