Solid-phase synthesis of nonhydrolyzable phosphotyrosyl peptide analogues with Nα-Fmoc-(O,O-di-t-butyl)phosphono-p-methylphenylalanine
摘要:
A new, protected derivative of phosphonomethylphenylalanine is used to synthesize nonhydrolyzable analogs of phosphotyrosyl peptides for use as inhibitors and affinity ligands of proteins that recognize phosphotyrosyl sequences.
LARGE SCALE PREPARATION OF CELL PERMEABLE, NON-PHOSPHATE-CONTAINING GRB2 SH2 DOMAIN INHIBITORS
作者:Ding-Guo Liu、Zhu-Jun Yao、Yang Gao、Terrence R. Burke
DOI:10.1080/00304940009356287
日期:2000.4
Inhibitors of cellular signal transduction are emerging as important new therapeutics for several diseases including cancers' and diabetes.' Antagonists of aberrant protein-tyrosine kinasedependent signalling are particularly interesting7 with analogues l4 and 2s representing two noteworthy examples which have been reported recently to potently inhibitGrb2SH2domain binding both in extracellular
Application of azide–alkyne cycloaddition ‘click chemistry’ for the synthesis of Grb2 SH2 domain-binding macrocycles
作者:Won Jun Choi、Zhen-Dan Shi、Karen M. Worthy、Lakshman Bindu、Rajeshri G. Karki、Marc C. Nicklaus、Robert J. Fisher、Terrence R. Burke
DOI:10.1016/j.bmcl.2006.08.004
日期:2006.10
domain-binding assays the monomeric (S)-Pmp-containing macrocycle exhibited a K(d) value of 0.23microM, while the corresponding dimeric macrocycle was found to have greater than 50-fold higher affinity. The open-chain dimer was also found to have affinity equal to the dimeric macrocycle. This work represents the first application of 'clickchemistry' to the synthesis of SH2 domain-binding inhibitors and
Process of making benzylic .alpha.,.alpha.-diflurophosphonates from
申请人:The United States of America as represented by the Secretary of the
公开号:US05264607A1
公开(公告)日:1993-11-23
The disclosure is concerned with providing phosphonic acid-containing derivatives of phenylalanine and optically active isomers thereof, which are functionalized in a manner which makes them suitable for facile incorporation into peptides using standard solid-phase or solution-phase techniques. The disclosure is also concerned with providing an advantageous one-step reaction method for preparing benzylic .alpha.,.alpha.-difluorophosphonates from corresponding benzylic ketophosphonates.
New synthesis of D,L-fmoc protected 4- phosphonomethylphenylalanine derivatives and their enzymatic resolution
作者:Krystyna baczko、Wang-Qing Liu、Bernard P. Roques、Christlane Garbay-Jaureguiberry
DOI:10.1016/0040-4020(95)01003-3
日期:1996.2
enzymaticresolution of ethyl 4-[(dimethylphosphono)methyl]-D,L-phenylalaninate succeeded. These results are discussed by comparison with the literature data. The L and D amino acids were used to prepare separately, through solid-phase peptide synthesis, followed by deprotection of dimethylphosphonate group by trimethylsilyliodide (TMSI) in acetonitrile, the L and D isomers of Glu-Asp-Val- Pmp-Glu-Asn-Leu-His-Thr
Preparation of fluoro- and hydroxy-4-(phosphonomethyl)-D,L-phenylalanine suitably protected for solid-phase synthesis of peptides containing hydrolytically stable analogs of O-phosphotyrosine
作者:Terrence R. Burke、Mark S. Smyth、Motoyoshi Nomizu、Akira Otaka、Peter R. Roller
DOI:10.1021/jo00058a009
日期:1993.3
4-[(Di-tert-butylphosphono)methyl]-N-(fluoren-9-ylmethoxycarbonyl)-D,L-phenylalanine [O-di-tert-butyl-Pmp-N-Fmoc, 3] has previously been shown to be a useful reagent for the solid-phase synthesis of peptides containing the hydrolytically stable O-phosphotyrosyl mimetic, phosphonomethylphenylalanine (Pmp, 2). One potential limitation of Pmp-containing peptides relative to the corresponding phosphotyrosyl prototypes is the higher pK(a2) value of phosphonic acids as compared to that of phosphates. In an effort to prepare Pmp analogues which more closely approximate phosphotyrosyl residues, O-di-tert-butyl-Pmp-N-Fmoc derivatives were made bearing monofluoro (4), difluoro (5), and hydroxy (6) substituents at the phosphonate methylene. The synthetic utility of analogues 4 and 6 was demonstrated by solid-phase synthesis of the hexameric peptide, H-Gly-X-Val-Pro-Met-Leu-OH, where X = monofluoro Pmp and hydroxy Pmp, respectively. These peptides are analogues of the SH2 recognition motif ''phosphoTyr-Val-Pro-Met-Leu'', which is important for mitogenic cellular signal transduction. The hydrolytic lability of difluoro Pmp analogue 5 precluded its usefulness in peptide synthesis. Along with O-di-tert-butyl-Pmp-N-Fmoc (3), monofluoro (4) and hydroxy (6) derivatives may prove to be useful synthons in the preparation of peptides containing hydrolytically stable analogues of phosphotyrosyl residues.