HRID2418600
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
PROCEDURE
实验过程
Condensation of BocPro-DTrp-PheOH (Example 33, 658 mg.) and HDArg(Tos)-Leu-MetNH2 (630 mg.) using dicyclohexylcarbodiimide and 1-hydroxybenzotriazole gave BocPro-DTrp-Phe-DArg(Tos)-Leu-MetNH2 in 46% yield. De-t-butoxycarbonylation of BocPro-DTrp-Phe-DArg(Tos)-Leu-MetNH2 (524 mg.) using trifluoroacetic acid in dimethyl sulfide and ethanedithiol gave HPro-DTrp-Phe-DArg(Tos)-Leu-MetNH2 in 78% yield. De-p-toluenesulfonylation of HPro-DTrp-Phe-DArg(Tos)-Leu-MetNH2 (420 mg.) using liquid hydrogen fluoride with anisole gave HPro-DTrp-Phe-DArg-Leu-MetNH2, which was isolated as the amorphous off-white solid dihydrochloride acetate (2:1) salt hydrate (2:5) in 61% yield.