A concise diastereospecific synthesis of 3-amino-2-hydroxy acids
作者:Charles W. Jefford、Bo Wang Jian、Lu Zhi-Hui
DOI:10.1016/s0040-4039(00)60398-2
日期:1993.11
The Enantioselective Synthesis of ?-Amino Acids, their ?-hydroxy derivatives, and theN-terminal components of bestatin and microginin
作者:Charles W. Jefford、James McNulty、Zhi-Hui Lu、Jian Bo Wang
DOI:10.1002/hlca.19960790426
日期:1996.6.26
(3R)-3-aminobutanoic acids 12a–e (ee > 99%). Electrophilic hydroxylation of 8 ( 19; Scheme 3), subsequent iodo-esterification ( 21; Scheme 4), and nucleophilic alkylation and phenylation afforded, after saponification and deprotection, a series of 4-substituted (2S, 3R)-3-amino-2-hydroxybutanoic acids 24 including the N-terminal acids 24e ( =3) and 24f ( =4) of bestatin and microginin (de > 95%), respectively