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
Analogously to Example 111, 52 mg (0.198 mmol) of N-(2-(2-methoxy-ethoxy)-ethoxy)carbonyl-(L)-valine (Example 82a)) and 100 mg (0.180 mmol) of 1-[2(S)-hydroxy-3(S)-(N-(quinoline-2-carbonyl)-(L)-asparaginyl)amino-4-phenyl-butyl]-1-[phenylmethyl]-hydrazine in 1.8 ml of 0.3M NMM/DMF are reacted with 75.1 mg (0.198 mmol) of HBTU. The evaporation residue is taken up in methylene chloride and washed with 2 portions of 10% citric acid solution, water, saturated NaHCO3 solution and brine. The aqueous phases are extracted a further twice with methylene chloride and the combined organic phases are dried with Na2SO4 and concentrated by evaporation. Column chromatography (SiO2, methylene chloride/methanol 19:1) yields the title compound: TLC Rf (J')=0.08; tRet (V)=13.5 min; FAB-MS (M+H)+ +800.
WORKUP
后处理
- washwashed with 2 portions of 10% citric acid solution, water, saturated NaHCO3 solution and brine
- extractionThe aqueous phases are extracted a further twice with methylene chloride
- dry with materialthe combined organic phases are dried with Na2SO4
- concentrationconcentrated by evaporation