Chemoenzymatic synthesis of l-tyrosine derivative for a transketolase assay
摘要:
We have prepared an L-tyrosine derivative bearing a D-threo ketose moiety by a convenient chemoenzymatic route. This compound is of potential interest for developing stereospecific assays for enzymes catalyzing C-C bond cleavage such as transketolase. We showed in vitro by analytical studies (LC/MS and P-31 NMR) that this compound can release L-tyrosine in the presence of wild type TK extract and bovine serum albumin. This assay is the first step towards a mutant TK selection test that could be developed for yeast cells auxotrophic for L-tyrosine. (c) 2008 Elsevier Ltd. All rights reserved.
A structure-based design approach to advance the allyltyrosine-based series of HIV integrase inhibitors
作者:Christopher P. Gordon、Neal Dalton、Nicholas Vandegraaff、John Deadman、David I. Rhodes、Jonathan A. Coates、Stephen G. Pyne、Renate Griffith、John B. Bremner、Paul A. Keller
DOI:10.1016/j.tet.2017.11.052
日期:2018.3
of mid-2017, only one structure of the human immunodeficiency virus (HIV) integrase core domain co-crystallised with an active site inhibitor was reported. In this structure (1QS4), integrase is complexed with a diketo-acid based strand-transfer inhibitor (INSTI). This structure has been a preferred platform for the structure-based design of INSTIs despite concerns relating to structural irregularities
O'-(epoxyalkyl)tyrosines and (epoxyalkyl)phenylalanine as irreversible inactivators of serine proteases: synthesis and inhibition mechanism
作者:Guillermo Tous、Andrew Bush、Ana Tous、Frank Jordan
DOI:10.1021/jm00168a015
日期:1990.6
-phenylalanine were synthesized as potential serine protease inhibitors. N-Acetyl derivatives showed irreversible inactivation vis-a-vis subtilisin, while the N-benzoyl ones were specific toward chymotrypsin. The most potent inactivation of chymotrypsin was achieved by a O'-(3,4-epoxybutyl)-L-tyrosine derivative. The inactivation was shown to be stereospecific since a D derivative led to no irreversible inactivation
New cyclic peptides via ring-closing metathesis reactions and their anti-bacterial activities
作者:Timothy P. Boyle、John B. Bremner、Jonathan Coates、John Deadman、Paul A. Keller、Stephen G. Pyne、David I. Rhodes
DOI:10.1016/j.tet.2008.09.031
日期:2008.12
As part of a program investigating cyclic peptides with an internal aromatic hydrophobic scaffold as potential novel anti-bacterial agents, we explored the synthesis of simple tyrosine-based systems. These were prepared via key intermediates containing internal allylglycine and allyltyrosine residues for subsequent ring-closingmetathesis reactions. Although the resulting anti-bacterial activity against
The present invention provides a compound of formula (I), (II), (III) and (IV) as defined herein and pharmaceutically acceptable derivatives thereof. The present invention further provides use of the compounds of the present invention in the treatment of bacterial infection and in the treatment of HIV infection. Also provided are pharmaceutical compositions comprising the compounds of the present invention.
The present invention provides a compound of formula I, II, III and IV as defined herein and pharmaceutically acceptable derivatives thereof. The present invention further provides use of the compounds of the present invention in the treatment of bacterial infection and in the treatment of HIV infection. Also provided are pharmaceutical compositions comprising the compounds of the present invention.