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 |