Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5271645 | Tetrahedron Letters | 2010 | 4 Pages |
Abstract
Stereocontrolled synthesis of (S)-Fmoc-β-nitroalanine (20) was accomplished from (R)-Fmoc-Ser(tBu)-OH (14) in a total of six steps via an oxime. The oxime (17) was obtained from (R)-Fmoc-Ser(tBu)-H (16), which in turn was obtained by reduction of Weinreb amide (15). Oxidation of oxime was realized with peroxytrifluoroacetic acid at a neutral pH at 0 °C. After removal of the tBu protecting group with 90% TFA/H2O, the hydroxyl group was oxidized with Jones reagent to afford (S)-Fmoc-β-nitroalanine (20) in overall good yield.
Graphical abstractStereoselective synthesis of (S)-Fmoc-β-nitroalanine was accomplished from (R)-Fmoc-Ser(tBu)-OH in a total of six steps via oxidation of oxime.Download full-size image
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Satendra S. Chauhan, Howard J. Wilk,