Synthesis of Amino Acid-Derived Cyclic Acyl Amidines for Use in β-Strand Peptidomimetics
摘要:
The acyl amidine represented by the 4,5-dihydro-2(3H)-pyrazinone ring system 2 is isosteric to the vinylogous amide of the 1,2-dihydro-3(6H)-pyridinone 1, but its assembly from separate amine and amide components enables ready incorporation of an amino acid side chain with correct regio- and stereochemistry. beta-Strand peptidomimetics incorporating amino acid analogues based on 2 have recently been shown to be potent, protease-resistant ligands to a PDZ protein-interaction domain. Two routes to the protected dipeptide analogue 3 are described.
Peptide beta-strand mimics based on pyridinones, pyrazinones, pyridazinones, and triazinones
申请人:Bartlett A. Paul
公开号:US20050187138A1
公开(公告)日:2005-08-25
Peptide analogs in which one or more amino acids is replaced by a diaza- or triazacyclohexenone, or by an aza-, diaza-, or triazacyclohexenone that is substituted at the α-position with a side chain of an amino acid, display an improved ability to assume a β-strand conformation and to enter into β-sheet-like interactions with peptides in an affinity-specific manner. The peptide analogs of this invention therefore have utility as β-strand mimics offering advantages over both native peptides and β-strand mimics of the prior art.
Synthesis of Amino Acid-Derived Cyclic Acyl Amidines for Use in β-Strand Peptidomimetics
作者:Ming C. Hammond、Paul A. Bartlett
DOI:10.1021/jo062664i
日期:2007.4.1
The acyl amidine represented by the 4,5-dihydro-2(3H)-pyrazinone ring system 2 is isosteric to the vinylogous amide of the 1,2-dihydro-3(6H)-pyridinone 1, but its assembly from separate amine and amide components enables ready incorporation of an amino acid side chain with correct regio- and stereochemistry. beta-Strand peptidomimetics incorporating amino acid analogues based on 2 have recently been shown to be potent, protease-resistant ligands to a PDZ protein-interaction domain. Two routes to the protected dipeptide analogue 3 are described.