参考标题:Enantioselective Synthesis Of N-Protected α-Amino Acid Hydrazides 作者:Jean-Alain Fehrentz,Mathieu Bibian,Sarah El-Habnouni,Jean Martinez |发布日期:2009.4 摘要:A New, Mild, General, And Efficient Synthesis Of N-Protected î+/--Amino Acid Hydrazides Is Described. This Two-Step Preparation Uses N-Aminophthalimide As Protected Hydrazine To Prepare N-Protected î+/--Amino Acid Hydrazide Precursors, And Subsequent DePhthaloylation With An Aminomethyl Polystyrene Resin Yields N-Protected î+/--Amino Acid Hydrazides. It Has The Advantages Of Avoiding The Use Of The Toxic Hydrazine Reagent And Being Compatible With The Most Commonly Used N-Protecting Groups. This Strategy Is Particularly Interesting In The Case Of N-(9-Fluorenylmethoxycarbonyl)-Protected Amino Acids. Within The Limits Of Chiral Hplc Detection, No Epimerization Is Apparent.