HRID904951
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
25.7 g of H-Val-Thr(But)-OBut.HCl are reacted, in 250 ml of dimethylformamide, with 26.0 g of Z-Glu-(OBzl)-OH and 15 g of DCC in the presence of 9.5 g of HOBt. After stirring for 6 hours the mixture is filtered and the filtrate is evaporated to dryness in vacuo. The residue is taken up in ethyl acetate, the solution is washed as described under (A) and, after drying and evaporating off the solvent, 37.3 g of the title compound are obtained with a melting point of 140°-144° (decomposition). Elementary analysis correct (C, H and N).
WORKUP
后处理
- filtrationis filtered
- customthe filtrate is evaporated to dryness in vacuo
- washthe solution is washed
- customafter drying
- customevaporating off the solvent, 37.3 g of the title compound
- customare obtained with a melting point of 140°-144° (decomposition)