Concept

Dipeptide

Related publications (14)

Synthesis of Fluorescent Cyclic Peptides via Gold(I)-Catalyzed Macrocyclization

Jérôme Waser, Aleksandra Radenovic, Beat Fierz, Xingyu Liu, Nathan Cyprien Arsène Ronceray, Wei Cai

Rapid and efficient cyclization methods that form structurally novel peptidic macrocycles are of high importance for medicinal chemistry. Herein, we report the first gold(I)-catalyzed macrocyclization of peptide-EBXs (ethynylbenziodoxolones) via C2-Trp C–H ...

2023

In depth analysis of heterogeneous catalysts for the chemoenzymatic dynamic kinetic resolution of beta-amino esters

Kumar Varoon Agrawal, Cédric Karel J Van Goethem

The chemoenzymatic dynamic kinetic resolution of beta-amino esters is established after detailed evaluation of metal-based heterogeneous catalysts for racemization and enzyme catalysts for kinetic resolution. Several heterogeneous palladium catalysts prove ...

ROYAL SOC CHEMISTRY2022

Integrated proteogenomic deep sequencing and analytics accurately identify non-canonical peptides in tumor immunopeptidomes

Didier Trono, George Coukos, Marion Leleu, Evaristo Jose Planet Letschert, Markus Müller, Florian Huber, Laia Simo Riudalbas, Delphine Yvette L Grun, Ioannis Xenarios, Lin Zhang, Alexandre Harari, Marion Arnaud

Efforts to precisely identify tumor human leukocyte antigen (HLA) bound peptides capable of mediating T cell-based tumor rejection still face important challenges. Recent studies suggest that non-canonical tumor-specific HLA peptides derived from annotated ...

2020

Novel inhibitors of the enzyme activated factor xii (fxiia)

Christian Heinis, Jonas Alfred Karl Wilbs, Vanessa Baeriswyl, Simon Jan Middendorp

The present invention relates to a bicyclic inhibitor of the coagulation enzyme activated factor XII (FXIIa) comprising or consisting of the peptide (X1)(X2)(X3)n(X4)(X5)(X6)m(X7)(X9)l(X10)(X11)(X12)(X13)(X14)k(X15)(X16), wherein (X1) is present or absent ...

2016

Cross-Reactive Sensor Arrays for the Detection of Peptides in Aqueous Solution by Fluorescence Spectroscopy

Kay Severin, Sébastien Rochat, Friederike Gundula Marie Zaubitzer, Jie Gao

A simple but powerful method for the sensing of peptides in aqueous solution has been developed. The transition-metal complexes [PdCl2(en)], [{RhCl2Cp*}2], and [{RuCl2(p-cymene)} 2] were combined with six different fluorescent dyes to build a cross-reactiv ...

2010

Synthesis and evaluation of 2'-O-substituted oligoribonucleotide analogues with new properties

Luc Reymond

During a previous, exploratory project in our group, it was observed that duplexes formed by oligonucleotides modified with polar 2'-O-substituents were more tolerant towards the addition of 1,2-dimethoxyethane (DME) than RNA and DNA duplexes [1]. Inspired ...

EPFL2006

A Rapid Access to Biaryl Ether Containing Macrocycles by Pairwise Use of Ugi 4CR and Intramolecular SNAr-Based Cycloetherification

Jieping Zhu

An Ugi reaction promoted by ammonium chloride in aprotic solvent is documented here for the first time. From readily accessible starting materials, macrocycles with an endo aryl-aryl ether bond are synthesized in only two steps, Ugi four-component reaction ...

2001

Iontophoretic delivery of 5-aminolevulinic acid (ALA) and a series of ALA esters into and through the skin

Hubert van den Bergh

Iontophoretic delivery of a homologous series of cationic ALA esters, into and through the skin, has been detd. and compared to that of the zwitterionic parent drug. The roles of electrorepulsion and electroosmosis have been deduced. ...

2001

5-Aminolevulinic acid and its derivatives: physical chemical properties and protoporphyrin IX formation in cultured cells

Hubert van den Bergh, Georges Wagnières, Matthieu Philippe Emmanuel Zellweger, Pascal Uehlinger

Protoporphyrin IX (PpIX) is used as a fluorescence marker and photosensitizing agent in photodynamic therapy (PDT). A temporary increase of PpIX in tissues can be obtained by administration of 5-aminolevulinic acid (ALA). Lipophilicity is one of the key pa ...

2000

Efficient one-pot synthesis of N-ethyl amino acids

Mono-N-ethylated alpha-amino acid esters are obtained in high yields using reductive amination procedures. Formation of imine is achieved by excess of acetaldehyde, followed by removal of acetaldehyde and reduction by NaBH(OAc)(3). The elaborated one-pot s ...

1999

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