A Selective Deprotection Strategy for the Construction of trans-2-Aminocyclopropanecarboxylic Acid Derived Peptides
摘要:
A procedure allowing access to unprecedented tripeptides containing a trans-2-aminocyclopropanecarboxylic acid residue in their central position has been established. The key features of the strategy are the use of a masked trans-2-aminocyclopropanecarboxylic acid monomer equivalent for C-terminal coupling and full N-Boc protection of all amide groups until the final step.
Enantiomerically Pure Cyclopropylamines via C-B to C-N Conversion
作者:Jörg Pietruszka、Gemma Solduga
DOI:10.1055/s-2008-1072786
日期:2008.5
For the first time cyclopropyltrifluoroborates have been utilized to form cyclopropylamines in a one-pot procedure. The scope was not only demonstrated by successfully reacting various racemic cis- and trans-2-substituted cyclopropanes as well as azides, but also by applying the sequence to enantiomericallypure building blocks. An approach to tranylcypromine as well as belactosin A is outlined.
环丙基三氟硼酸盐首次用于在一锅法中形成环丙胺。该范围不仅通过各种外消旋顺式和反式 2- 取代环丙烷以及叠氮化物的成功反应来证明,而且还通过将序列应用于对映体纯构建块来证明。概述了反苯环丙胺和 belactosin A 的方法。