Stereoselective Peptide Modifications via β-C(sp<sup>3</sup>)-H Arylations
作者:Biplab Mondal、Brindaban Roy、Uli Kazmaier
DOI:10.1021/acs.joc.6b01963
日期:2016.12.2
Palladium-catalyzed stereoselective β-arylations of phenylalanine, proline- and pipecolinic acid-containing peptides are a versatile tool for peptide modifications. The reactions proceed without epimerization of stereogenic centers in the peptide chain. If suitable functionalized aryl iodides are introduced, subsequent cross coupling reactions can be used for further modifications. The 8-amino quinoline
A Straightforward Protocol for the Synthesis of Functionalized Tryptophan Peptides via Stille Coupling, Azidation and Photoinduced Nitrene Insertion
作者:Uli Kazmaier、Lukas Junk
DOI:10.1055/s-0035-1561410
日期:——
Substituted and functionalized tryptophans are interesting building blocks in peptidic natural products. Stereoselectiveallylic alkylations of small peptides using stannylated allylic substrates allow the synthesis of stannylated peptides, which can be subjected to Stille couplings using (substituted) o -iodoanilines. Subsequent azidation and photochemical nitrene insertion allows the direct incorporation