288617-77-6Relevant articles and documents
A reappraisal of the Ni-[(Benzylprolyl)amino]benzophenone complex in the synthesis of α,α-disubstituted amino acid derivatives
Watson, Morag E.,Jamieson, Craig,Kennedy, Alan R.,Mason, Andrew M.
, (2019/08/08)
α,α-Disubstituted alkenyl amino acid derivatives (e.g. Fmoc-S5-OH) are valuable monomers in the construction of stapled peptide derivatives. Synthetic access to these is possible using the Ni-[(Benzylprolyl)amino]benzophenone (BPB) complex as a chiral auxiliary. We discuss a reappraisal of the use of this, and demonstrate that epimerisation of the proline α-centre occurs during formation of the complex, leading to erosion in the enantiomeric excess of the final product. Modified conditions have been developed, providing the target compounds in high enantiomeric excess.
Stabilized alpha helical peptides and uses thereof
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, (2016/05/19)
Novel polypeptides and methods of making and using the same are described herein. The polypeptides include cross-linking (“hydrocarbon stapling”) moieties to provide a tether between two amino acid moieties, which constrains the secondary structure of the polypeptide. The polypeptides described herein can be used to treat diseases characterized by excessive or inadequate cellular death.
DISUBSTITUTED AMINO ACIDS AND METHODS OF PREPARATION AND USE THEREOF
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Paragraph 0100; 0192; 0193, (2014/05/20)
Provided are crystalline α, α-disubstituted amino acids and their crystalline salts containing a terminal alkene on one of their side chains, as well as optionally crystalline halogenated and deuterated analogs of the α, α-disubstituted amino acids and their salts; methods of making these, and methods of using these.
