1085528-19-3Relevant articles and documents
Rational design of proteolytically stable, cell-permeable peptide-based selective Mcl-1 inhibitors
Muppidi, Avinash,Doi, Kenichiro,Edwardraja, Selvakumar,Drake, Eric J.,Gulick, Andrew M.,Wang, Hong-Gang,Lin, Qing
, p. 14734 - 14737 (2012)
Direct chemical modifications provide a simple and effective means to translate bioactive helical peptides into potential therapeutics targeting intracellular protein-protein interactions. We previously showed that distance-matching bisaryl cross-linkers can reinforce peptide helices containing two cysteines at the i and i+7 positions and confer cell permeability to the cross-linked peptides. Here we report the first crystal structure of a biphenyl-cross-linked Noxa peptide in complex with its target Mcl-1 at 2.0 a resolution. Guided by this structure, we remodeled the surface of this cross-linked peptide through side-chain substitution and N-methylation and obtained a pair of cross-linked peptides with substantially increased helicity, cell permeability, proteolytic stability, and cell-killing activity in Mcl-1-overexpressing U937 cells.
METHOD FOR PREPARING ENANTIOMERICALLY ENRICHED N-CARBOXYANHYDRIDE
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Page/Page column 3, (2010/05/13)
This disclosure relates to methods for preparing an enantiomerically enriched N-carboxyanhydride of an amino alpha acid of the formula (IIIa) or (IIIb): from a compound of the formula (IIa) or (IIb), respectively: wherein R1, R2, and R3 are as defined in the disclosure.