First stereoselective synthesis of potassium aeschynomate and its no-natural stereomers
摘要:
The synthesis of potassium aeshynomate and its non-natural stereomers was achieved using the Sharpless catalytic asymmetric dihydroxylation of (Z) or (E) vinylogous glycine as the key step. The resulting gamma-amino alpha, beta-dihydroxyester stereomer was deprotected and coupled with the caffeic acid to afford stereoselectively potassium aeshynomate or its stereomers. A detailed study of the NMR data of the different stereomers is reported that corrects the literature data. (c) 2005 Elsevier Ltd. All rights reserved.
First stereoselective synthesis of potassium aeschynomate and its no-natural stereomers
摘要:
The synthesis of potassium aeshynomate and its non-natural stereomers was achieved using the Sharpless catalytic asymmetric dihydroxylation of (Z) or (E) vinylogous glycine as the key step. The resulting gamma-amino alpha, beta-dihydroxyester stereomer was deprotected and coupled with the caffeic acid to afford stereoselectively potassium aeshynomate or its stereomers. A detailed study of the NMR data of the different stereomers is reported that corrects the literature data. (c) 2005 Elsevier Ltd. All rights reserved.