Synthesis of Tubuphenylalanines via Ireland–Claisen Rearrangement
作者:Dominic Becker、Uli Kazmaier
DOI:10.1021/jo301693d
日期:2013.1.4
The Ireland–Claisenrearrangement is the central step in the synthesis of tubuphenylalanine, a key building block of the highly antitumor-active tubulysins. The rearrangement of substituted β-amino acid allyl esters, in combination with subsequent decarboxylation and oxidative cleavage of the double bond, allows the highly stereoselective introduction of substituents into the α-position of the resulting