Short and stereoselective synthesis of manzacidins A and C, and their enantiomers
作者:Kentaro Oe、Tetsuro Shinada、Yasufumi Ohfune
DOI:10.1016/j.tetlet.2008.10.074
日期:2008.12
A short and stereoselective synthesis of manzacidins A and C, and their enantiomers was achieved via stereoselective hydrogenation reactions of dehydroamino acid esters 5-8 using a chiral Rh catalyst. (C) 2008 Elsevier Ltd. Ail rights reserved.
Asymmetric Intermolecular Conjugate Addition of Amino Acid Derivatives via Memory of Chirality: Total Synthesis of Manzacidin A
Asymmetric intermolecular conjugateaddition of α-amino acidderivatives with 4 via memory of chirality has been developed. The reactions proceeded in up to 98% ee with retention of configuration at the newly formed tetrasubstituted carbon center when R = Me. The product (R = Me) was transformed into manzacidin A.