Enantioselective synthesis of protected forms of (3R,5R)-5- hydroxypiperazic acid useful for synthesis Journal Article


Authors: Depew, K. M.; Kamenecka, T. M.; Danishefsky, S. J.
Article Title: Enantioselective synthesis of protected forms of (3R,5R)-5- hydroxypiperazic acid useful for synthesis
Abstract: Protected versions of (3R,5R)-5-hydroxypiperazic acid were synthesized enantioselectively in two novel ways. The first derives its chirality from D- glutamic acid while the second uses an Evans amination and a diastereoselective bromolactonization to establish the two chiral centers. Given that this amino acid is a component of several depsipeptides, these two routes enable the synthesis of multigram quantities of protected versions of 2.
Keywords: chemical structure; amination; piperazine derivative; reaction analysis; chemical reaction; synthesis; stereochemistry; depsipeptide; lactone derivative; chirality; enantiomer; annulation; bromine derivative; amino acid derivative; article; amino acid derivatives; lactonisation; dextro glutamic acid
Journal Title: Tetrahedron Letters
Volume: 41
Issue: 3
ISSN: 0040-4039
Publisher: Pergamon-Elsevier Science Ltd  
Date Published: 2000-01-15
Start Page: 289
End Page: 292
Language: English
DOI: 10.1016/s0040-4039(99)01958-9
PROVIDER: scopus
DOI/URL:
Notes: Export Date: 18 November 2015 -- Source: Scopus
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