HRID27810

反应详情

EQUATION

反应方程式

HRID 27810 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

Partially protected octapeptide (IV) (0.10 g) was hydrogenated in 85% AcOH (70 ml) with 10% Pd/C catalyst (0.20 g) over a steady stream of hydrogen for 20 hours. The mixture was filtered, evaporated in vacuo and residue filtered on Sephadex LH20 eluting with water to give the desired octapeptide methyl ester (V) (0.03 g, 46% yield). TLC examination showed 1 spot at Rf 0.2 in 5:2:2 BAW (t-BuOCl/KI-starch stain) and Rf 0.5 in 5:2:3 BAW (Ninhydrin stain). Amino acid analysis:

WORKUP

后处理

  1. filtrationThe mixture was filtered
  2. customevaporated in vacuo and residue
  3. filtrationfiltered on Sephadex
  4. washLH20 eluting with water