HRID1920169

反应详情

EQUATION

反应方程式

HRID 1920169 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

To a solution of (3S,5R)-benzyl 3-(tert-butoxycarbonylamino)-5-hydroxypiperidine-1-carboxylate (1 eq) in 10 mL dichloromethane was added Dess-Martin periodinane (1.2 eq) at room temperature. The reaction mixture was stirred at that temperature overnight. The mixture was diluted with ethyl acetate, washed with brine, then dried over anhydrous MgSO4, filtered, and concentrated in vacuo. The crude residue was purified by flash chromatography (EtOAc:hexanes=1:2) to yield (S)-benzyl 3-(tert-butoxycarbonylamino)-5-oxopiperidine-1-carboxylate (81%). LC/MS (m/z): 249.1 (MH+-100), Rt: 0.83 min. HPLC: Rt: 3.26 min.

WORKUP

后处理

  1. washwashed with brine
  2. dry with materialdried over anhydrous MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe crude residue was purified by flash chromatography (EtOAc:hexanes=1:2)