HRID703225

反应详情

EQUATION

反应方程式

HRID 703225 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

According to the procedure of Example 62, 1-(4-chlorobenzoyl)-N-hydroxy-5-methoxy-2-methyl-1H-indole-3-methanamine is reacted with 2.1 eq of 3-carbomethoxypropionyl chloride in dioxane/water (1:1) in the presence of sodium acetate (2.5 eq). The crude product is purified by column chromatography (silica gel, 1:4 ethyl acetate:methylene chloride). The resulting product is slurried in ethyl acetate and filtered to give pure 4-[[[1-(4-chlorobenzoyl)-5-methoxy-2-methyl-1H-indol-3-yl]methyl]hydroxyamino]-4-oxo-butanoic acid, methyl ester (24%); mp 157.5°-158° C.

WORKUP

后处理

  1. customThe crude product is purified by column chromatography (silica gel, 1:4 ethyl acetate:methylene chloride)
  2. filtrationfiltered