HRID20399

反应详情

EQUATION

反应方程式

HRID 20399 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

Dissolve (R)-5-[(1S,2S)-2-amino-3-(3,5-difluorophenyl)-1-hydroxypropyl]-2,2-diphenylmorpholine-4-carboxylic acid tert-butyl ester (0.163 g, 0.31 mmol) in tetrahydrofuran (4 mL). Add triethylamine (0.044 g, 0.44 mmol) and acetic anhydride (0.036 g, 0.35 mmol). Stir 90 minutes and dilute with ethyl acetate (50 mL). Wash with 0.1 N aqueous citric acid, water, and saturated aqueous sodium chloride. Dry (magnesium sulfate), filter and concentrate. Purify on silica gel, eluting with 10:90 to 50:50 ethyl acetate:hexanes to give the title compound.

WORKUP

后处理

  1. washWash with 0.1 N aqueous citric acid, water, and saturated aqueous sodium chloride
  2. dry with materialDry (magnesium sulfate)
  3. filtrationfilter
  4. concentrationconcentrate
  5. customPurify on silica gel
  6. washeluting with 10:90 to 50:50 ethyl acetate