Copper(I)‐Mediated Denitrogenative Macrocyclization for the Synthesis of Cyclic α3β‐Tetrapeptide Analogues

CC Chen, SF Wang, YY Su, YA Lin… - Chemistry–An Asian …, 2017 - Wiley Online Library
A copper (I)‐mediated denitrogenative reaction has been successfully developed for the
preparation of cyclic tetrapeptides. The key reactive intermediate, ketenimine, triggers …

Methyl effect in azumamides provides insight into histone deacetylase inhibition by macrocycles

AR Maolanon, JS Villadsen… - Journal of Medicinal …, 2014 - ACS Publications
Natural, nonribosomal cyclotetrapeptides have traditionally been a rich source of inspiration
for design of potent histone deacetylase (HDAC) inhibitors. We recently disclosed the total …

An azumamide C analogue without the zinc-binding functionality

JS Villadsen, B Kitir, K Wich, T Friis, AS Madsen… - …, 2014 - pubs.rsc.org
Histone deacetylase (HDAC) inhibitors have attracted considerable attention due to their
promise as therapeutic agents. Most HDAC inhibitors adhere to a general “cap-linker-Zn2+ …

Progress in discovery and development of natural inhibitors of histone deacetylases (HDACs) as anti-cancer agents

A Wahi, P Jain, A Sinhari, HR Jadhav - Naunyn-Schmiedeberg's Archives …, 2024 - Springer
The study of epigenetic translational modifications had drawn great interest for the last few
decades. These processes play a vital role in many diseases and cancer is one of them …

An amphipathic cyclic tetrapeptide scaffold containing halogenated β2,2‐amino acids with activity against multiresistant bacteria

MH Paulsen, EA Karlsen, D Ausbacher… - Journal of Peptide …, 2018 - Wiley Online Library
The present study describes the synthesis and biological studies of a small series of head‐to‐
tail cyclic tetrapeptides of the general structure c (Lys‐β2, 2‐Xaa‐Lys) containing one …

[PDF][PDF] 2.10—marine invertebrates: sponges

Y Nakao, N Fusetani - Comprehensive natural products II, 2010 - pharmacy.hebmu.edu.cn
Sponges (phylum Porifera), often called 'living fossils' or 'most primitive multicellular
animals', are the first metazoans evolved from a common ancestor termed Urmetazoa 1 …

Direct synthesis of β2,3‐amino acid from β‐hydroxycarbamides: Implication in the synthesis of azumamide analogs and conformational analysis

AA Khan, J Vaishnav, MK Gangwar… - Journal of …, 2023 - Wiley Online Library
The designed β2, 3 unnatural amino acids have been synthesized from α‐methyl‐β‐
hydroxycarbamides via direct azidation without obtaining eliminated products. Furthermore …

Cyclization of Linear Tetrapeptides Containing N‐Methylated Amino Acids by using 1‐Propanephosphonic Acid Anhydride

S Zhang, LM De Leon Rodriguez… - European journal of …, 2017 - Wiley Online Library
The cyclization of the linear tetrapeptides sequence H‐NMePhe‐Xaa1‐NMePhe‐Xaa2‐OH
(for which Xaa1= Xaa2= Ile, Val, or Leu; Xaa1= Val; Xaa2= Ile or Leu) by using 1 …

Chemical and biological aspects of marine sponges from the family Mycalidae

LJ Habener, JNA Hooper, AR Carroll - Planta medica, 2016 - thieme-connect.com
Sponges are a useful source of bioactive natural products. Members of the family Mycalidae,
in particular, have provided a variety of chemical structures including alkaloids, polyketides …

Metagenomic exploration of Mycale hentscheli microbiome secondary metabolite biosynthesis.

M Storey - 2022 - openaccess.wgtn.ac.nz
The natural environment is replete with potent bioactive organic molecules that are
produced by the microorganisms that inhabit it. These so-called secondary metabolites …