반응 #11803

반응 방정식

(2R)-2-[1-[(4-Chloro-2-hydroxy-phenoxy)-acetyl]-4-(4-fluoro-benzyl)-piperazin-2-yl]-acetamide

cesium carbonate

tert-butyl bromoacetate

→

title compound

수율 87.5%

(2-{2-[(2R)-2-carbamoylmethyl-4-(4-fluoro-benzyl)-piperazin-1-yl]-2-oxo-ethoxy}-5-chloro-phenoxy)-acetic acid tert-butyl ester

수율 87.5%

용매

dioxane

반응 조건

후처리

1. 1
   여과the solution was filtered
2. 2
   농축concentrated
3. 3
   기타chromatographed on silica gel

실험 절차

(2R)-2-[1-[(4-Chloro-2-hydroxy-phenoxy)-acetyl]-4-(4-fluoro-benzyl)-piperazin-2-yl]-acetamide (0.070 g, 0.16 mmol), cesium carbonate (0.078 g, 0.24 mmol) and tert-butyl bromoacetate (0.038 g, 0.028 mL, 0.193 mmol) were stirred in dioxane (2 mL). After 2.5 days, the solution was filtered, concentrated and chromatographed on silica gel to yield the title compound as a white solid (0.077 g).

출처