Z. Yue
2013
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
A precursor of unnatural amino acid τ-L-His-D-Ala,dipeptide ±(4S)-5-(TBDMS)oxy-4-(dibenzylamino)-2-formamido-N-[3-hydroxy-2-(tritylamino)propyl]pentanamide,was synthesized from D-serine by a nine-step reaction of esterification,reduction,Swern oxidation,condensation,hydrolysis,and so on in total yield of 35.3%.The structure was characterized by 1H NMR,13C NMR and MS.