HRID20353

反应详情

EQUATION

反应方程式

HRID 20353 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

CONDITIONS

反应条件

温度
60 °C

PROCEDURE

实验过程

Add 1-bromobutane (6 μL, 55.6 μmol) to a solution of 5-[2-(S)-acetylamino-1-(S)-hydroxy-3-(3-hydroxyphenyl)-propyl]-2-(R)-(2,2-dimethylpropoxy)-3-(S)-methylmorpholine-4-carboxylic acid tert-butyl ester (25 mg, 50.5 μmol) and cesium carbonate (33 mg, 1.01 mmol) in N,N-dimethylformamide (250 μL). Heat to 60° C. for 3 hours. Dilute with ethyl acetate, wash with water, dry (magnesium sulfate), filter, concentrate and purify (silica gel chromatography, eluting with 20:80 to 85:15 ethyl acetate:dichloromethane) to give the title compound (28.5 mg, 80%).

WORKUP

后处理

  1. washwash with water
  2. dry with materialdry (magnesium sulfate)
  3. filtrationfilter
  4. concentrationconcentrate
  5. custompurify
  6. wash(silica gel chromatography, eluting with 20:80 to 85:15 ethyl acetate:dichloromethane)