HRID1779773

反应详情

EQUATION

反应方程式

HRID 1779773 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

150 mg of N-tert-butoxycarbonyl-2-methylene-4-(S)-hydroxy-5-(S)-amino-7(S)-isopropyl-8-(p-tert-butyl-phenyl)-octanoic acid (N-butyl)amide (diastereoisomer I) are hydrogenated in the presence of 150 mg of 10% Pd/C in 20 ml of tetrahydrofuran for 2 hours at room temperature and under normal pressure. The reaction mixtures is filtered and concentrated by evaporation. The residue is purified by means of FC (50 g of silica gel, dichloromethane/diethyl ether=8:2). The title compound is obtained in the form of a diastereoisomeric mixture: Rf (dichloromethane/diethyl ether=8:2)=0.18.

WORKUP

后处理

  1. customThe reaction mixtures
  2. filtrationis filtered
  3. concentrationconcentrated by evaporation
  4. customThe residue is purified by means of FC (50 g of silica gel, dichloromethane/diethyl ether=8:2)