HRID1376685

反应详情

EQUATION

反应方程式

HRID 1376685 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 583 mg of H-Gly-Asp(OBzl)-Val-OBzl (Example 15Bb) and 477.5 mg of Boc-Lys(Z)-O Su in 10 ml of DMF is adjusted to pH 8.5 with N-methylmorpholine. After stirring for 18 hours the mixture is concentrated and the residue is partitioned between ethyl acetate and water. The organic phase is washed with saturated NaHCO3 solution, 5% KHSO4 /10% K2SO4 solution and saturated NaCl solution, dried and filtered. The filtrate is concentrated and the residue is crystallized from ether. There are obtained 385 mg of Boc-Lys(Z)-Gly-Asp(OBzl)-Val-OBzl, m.p. 95°-101° C.

WORKUP

后处理

  1. concentrationis concentrated
  2. customthe residue is partitioned between ethyl acetate and water
  3. washThe organic phase is washed with saturated NaHCO3 solution, 5% KHSO4 /10% K2SO4 solution and saturated NaCl solution
  4. customdried
  5. filtrationfiltered
  6. concentrationThe filtrate is concentrated
  7. customthe residue is crystallized from ether