Muraymycins, novel peptidoglycan biosynthesis inhibitors: synthesis and SAR of their analogues
摘要:
A Series Of Muraymycin analogues was synthesized. These analogues showed excellent antimicrobial activity against grain-positive organisins. These analogues also showed excellent inhibitory activity against the target peptidoglycan biosynthesis enzyme MraY, the cell membrane associated transglycosylase responsible for the formation of Lipid II. (C) 2003 Elsevier Ltd. All rights reserved.
Muraymycins, novel peptidoglycan biosynthesis inhibitors: synthesis and SAR of their analogues
摘要:
A Series Of Muraymycin analogues was synthesized. These analogues showed excellent antimicrobial activity against grain-positive organisins. These analogues also showed excellent inhibitory activity against the target peptidoglycan biosynthesis enzyme MraY, the cell membrane associated transglycosylase responsible for the formation of Lipid II. (C) 2003 Elsevier Ltd. All rights reserved.
Muraymycin Nucleoside Antibiotics: Structure-Activity Relationship for Variations in the Nucleoside Unit
作者:Anna Heib、Giuliana Niro、Stefanie C. Weck、Stefan Koppermann、Christian Ducho
DOI:10.3390/molecules25010022
日期:——
relationship (SAR) studies. We now report on novel derivatives with unprecedented variations in the nucleoside unit. For the synthesis of these new muraymycin analogues, we employed a bipartite approach facilitating the introduction of different nucleosyl amino acid motifs. This also included thymidine- and 5-fluorouridine-derived nucleoside core structures. Using an in vitro assay for MraY activity, it was
Nucleosideantibiotics are uridine-derived natural products that inhibit the bacterial membrane protein MraY. MraY is a key enzyme in the membrane-associated intracellular stages of peptidoglycan biosynthesis and therefore considered to be a promising, yet unexploited target for novel antibacterial agents. Muraymycins are one subclass of such naturally occurring MraY inhibitors. As part of structure-activity
The invention provides compounds of the Formula 1
1
wherein the definitions of m, n, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
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and R
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are in the specification. These compounds are useful as antibacterial agents.
Novel 5′-deoxy nucleosyl amino acid scaffolds for the synthesis of muraymycin analogues
作者:Anatol P. Spork、Christian Ducho
DOI:10.1039/c003092a
日期:——
Naturally occurring nucleoside antibiotics such as muraymycins represent promising lead structures for the development of novel antibacterial agents. A concise synthesis of 5â²-deoxy muraymycin derivatives has been developed. The key step was the highly stereoselective asymmetric hydrogenation of suitable didehydro amino acid precursors, providing unique nucleosyl amino acid structures.