StructureâActivity Analysis of the Growth Hormone Secretagogue GHRP-6 by α- and β-Amino γ-Lactam Positional Scanning
摘要:
Incorporation of amino lactams into biologically active peptides restricts conformational mobility and may enhance selectivity and increase potency. α‐ and β‐amino γ‐lactams (Agl and Bgl), in both S and R configurations, were introduced into the growth hormone secretagogue GHRP‐6 using a Fmoc‐compatible solid‐phase protocol relying on N‐alkylation with five‐ and six‐membered cyclic sulfamidates, followed by lactam annulation under microwave heating. Using this protocol in conjunction with IRORI KanTM techniques furnished eleven new GHRP‐6 analogs, and their binding affinity IC50 values on both the growth hormone secretagogue receptor 1a (GHS‐R1a) and CD36 receptors are herein reported. The results indicate that selectivity towards one receptor or the other can be modulated by lactam substitution, typically at the Ala3 and the d‐Phe5 positions.
[EN] PROCESSES FOR PREPARING AMINO-SUBSTITUTED GAMMA-LACTAMS<br/>[FR] PROCÉDÉS DE SYNTHÈSE DE GAMMA-LACTAMES AMINO-SUBSTITUÉS
申请人:VALORISATION RECH SOC EN COMMA
公开号:WO2010105367A1
公开(公告)日:2010-09-23
The present application describes general process for the preparation of amino-substitued gamma-lactams involving the reaction of synthons of the general Formulae (I) and (VI): with amines. The processes are amenable to solid phase synthetic techniques and therefore allow the efficient incorporation of amino-substitued gamma-lactams into a wide variety of structural scaffolds, including, in particular peptides.
PROCESSES FOR PREPARING AMINO-SUBSTITUTED GAMMA-LACTAMS
申请人:Lubell William
公开号:US20120101257A1
公开(公告)日:2012-04-26
The present application describes general process for the preparation of amino-substituted gamma-lactams involving the reaction of synthons of the general Formulae (I) and (VI): with amines. The processes are amenable to solid phase synthetic techniques and therefore allow the efficient incorporation of amino-substituted gamma-lactams into a wide variety of structural scaffolds, including, in particular peptides.
[EN] PEPTIDOMIMETICS FOR MODULATING INTERLEUKIN-1 RECEPTOR<br/>[FR] PEPTIDOMIMÉTIQUES POUR MODULER LE RÉCEPTEUR D'INTERLEUKINE-1
申请人:CT HOSPITALIER UNIVERSITAIRE S
公开号:WO2010106441A2
公开(公告)日:2010-09-23
The present invention provides, among other things, improved Allosteramers™ for modulating IL-I receptor activity. In particular, the present invention provides peptidomimetics containing lactams and/or Bab residues. Pharmaceutical compositions of the peptidomimetic compounds of the present invention and methods of using these compositions in the treatment of various disorders are also provided.
Jamieson, Andrew G.; Boutard, Nicolas; Beauregard, Kim, Journal of the American Chemical Society, 2009, vol. 131, p. 7917 - 7927
作者:Jamieson, Andrew G.、Boutard, Nicolas、Beauregard, Kim、Bodas, Mandar S.、Ong, Huy、et al.
DOI:——
日期:——
StructureâActivity Analysis of the Growth Hormone Secretagogue GHRP-6 by α- and β-Amino γ-Lactam Positional Scanning
作者:Nicolas Boutard、Andrew G. Jamieson、Huy Ong、William D. Lubell
DOI:10.1111/j.1747-0285.2009.00913.x
日期:2010.1
Incorporation of amino lactams into biologically active peptides restricts conformational mobility and may enhance selectivity and increase potency. α‐ and β‐amino γ‐lactams (Agl and Bgl), in both S and R configurations, were introduced into the growth hormone secretagogue GHRP‐6 using a Fmoc‐compatible solid‐phase protocol relying on N‐alkylation with five‐ and six‐membered cyclic sulfamidates, followed by lactam annulation under microwave heating. Using this protocol in conjunction with IRORI KanTM techniques furnished eleven new GHRP‐6 analogs, and their binding affinity IC50 values on both the growth hormone secretagogue receptor 1a (GHS‐R1a) and CD36 receptors are herein reported. The results indicate that selectivity towards one receptor or the other can be modulated by lactam substitution, typically at the Ala3 and the d‐Phe5 positions.