Synthesis and structural characterization of a monocarboxylic inhibitor for GRB2 SH2 domain
作者:Tao Xiao、Luxin Sun、Min Zhang、Zilu Li、Eric B. Haura、Ernst Schonbrunn、Haitao Ji
DOI:10.1016/j.bmcl.2021.128354
日期:2021.11
A monocarboxylic inhibitor was designed and synthesized to disrupt the protein–protein interaction (PPI) between GRB2 and phosphotyrosine-containing proteins. Biochemical characterizations show compound 7 binds with the Src homology 2 (SH2) domain of GRB2 and is more potent than EGFR1068 phosphopeptide 14-mer. X-ray crystallographic studies demonstrate compound 7 occupies the GRB2 binding site for
Structural Examination of Ring-Closing Metathesis-Derived 15-Member Macrocycles as Grb2 SH2 Domain-Binding Tetrapeptide Mimetics
作者:Fa Liu、Karen M. Worthy、Lakshman K. Bindu、Robert J. Fisher、Terrence R. Burke
DOI:10.1021/jo701831q
日期:2007.12.1
exhibited low nanomolar Grb2 SH2 domain-binding affinities in spite of the fact that differing ring junction stereochemistries and geometries of the RCM-derived double bond were employed. The finding that significant latitude exists in the structural requirements for ring closure may facilitate the development of therapeutically relevant macrocyle-based Grb2 SH2 domain-binding antagonists. The synthetic approaches
Disclosed are compounds for SH2 domain binding inhibition, for example, a compound of formula (I), wherein R
1
is a lipophile; R
2
, in combination with the phenyl ring, is a phenylphosphate mimic group or a protected phenylphosphate mimic group; R
3
is hydrogen, azido, amino, carboxyalkyl, alkoxycarbonylalkyl, aminocarbonylalkyl, or alkylcarbonylamino, wherein the alkyl portion of R
3
may be optionally substituted with a substituent selected from the group consisting of halo, hydroxy, carboxyl, amino, aminoalkyl, alkyl, alkoxy, and keto; R
6
is a linker; AA is an amino acid; and n is 1 to 6; or a salt thereof. The conformationally compounds provide enhanced binding affinity with SH2 domain protein. Also disclosed are a pharmaceutical compositions and a method for inhibiting an SH2 domain from binding with a phosphoprotein.
Use of a Heck Reaction for the Synthesis of a New α-Azido Phosphotyrosyl Mimetic Suitably Protected for Peptide Synthesis
作者:Terrence R. Burke、Ding-Guo Liu、Yang Gao
DOI:10.1021/jo000643x
日期:2000.9.1
A highly efficient route to enantiomerically pure l-N-Bz-Pmp(t-Bu)2-OH and incorporation into a peptide-based protein tyrosine phosphatase inhibitor
作者:Caitlin E. Hubbard、Amy M. Barrios
DOI:10.1016/j.bmcl.2007.11.056
日期:2008.1
Phosphonomethyl phenylalanine (Pmp), a nonhydrolyzable mimic of phosphotyrosine, is an important building block in the development of peptide-based PTP inhibitors. We have designed a novel, efficient synthesis of N-Bz-Pmp(t-Bu)(2)-OH. A Pmp-containing peptide based on a known biological substrate of the tyrosine phosphatase CD45 (Ac-TEGQ-Pmp-QPQP-NH2) inhibits CD45 with an IC50 value of approximately 100 mu M with virtually no inhibition of TCPTP up to concentrations of 120 mu M. (c) 2007 Elsevier Ltd. All rights reserved.