HRID2081743

反应详情

EQUATION

反应方程式

HRID 2081743 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

30 ml of benzene was added to 1.00 g of (3R,5R,6R)-6-amino-3-(3-benzylideneamino-2-oxo-imidazolidin-1-yl)-3-(p-nitrobenzyloxycarbonyl)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane and 0.46 g of 3,5-di-tert-butyl-4-hydroxybenzaldehyde. The mixture was subjected to azeotropy and dehydration under reflux for 1 hour using a Dean-Stark aparatus. The reaction mixture was cooled, and the solvent was removed by distillation under reduced pressure to obtain 1.40 g (yield: 98.6%) of (3R,5R,6R)-3-(3-benzylideneamino-2-oxoimidazolidin-1-yl)-6-(3,5-di-tert-butyl-4-hydroxybenzylideneamino)-3-(p-nitrobenzyloxycarbonyl)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane.

WORKUP

后处理

  1. temperatureunder reflux for 1 hour
  2. temperatureThe reaction mixture was cooled
  3. customthe solvent was removed by distillation under reduced pressure