HRID2418603
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
Condensation of BocMeLeuOH (5.0 g.) and HMetNH2 (3.7 g.) by the mixed anhydride method using diphenylphosphinyl chloride gave BocMeLeu-MetNH2 in 67% yield. De-t-butoxycarbonylation of BocMeLeu-MetNH2 (5.2 g.) using hydrogen chloride in ethyl acetate gave HMeLeu-MetNH2 in 90% yield. Condensation of BocDTrpOPFP (5.60 g.) and HMeLeu-MetHN2 (3.70 g.) by the activated ester method gave BocDTrp-MeLeu-MetNH2 in 55% yield. De-t-butoxycarbonylation of BocDTrp-MeLeu-MetNH2 (3.38 g.) using trifluoroacetic acid in dimethyl sulfide and ethanedithiol gave HDTrp-MeLeu-MetNH2 in 74% yield.