[EN] CHEMOSELECTIVE THIOL-CONJUGATION WITH ALKENE OR ALKYNE-PHOSPHONAMIDATES<br/>[FR] CONJUGAISON CHIMIOSÉLECTIVE D'UN THIOL AVEC DES ALCÈNE- OU ALCYNE-PHOSPHONAMIDATES
申请人:FORSCHUNGSVERBUND BERLIN EV
公开号:WO2018041985A1
公开(公告)日:2018-03-08
Disclosed are novel conjugates and processes for the preparation thereof. A process for the preparation of alkene- or alkyne-phosphonamidates comprises the steps of (I) reacting a compound of formula (III), with an azide of formula (IV), to prepare a compound of formula (V), reacting a compound of formula (V) with a thiol-containing molecule of formula (VI), resulting in a compound of formula (VII).
Ethynylphosphonamidates for the Rapid and Cysteine‐Selective Generation of Efficacious Antibody–Drug Conjugates
作者:Marc‐André Kasper、Andreas Stengl、Philipp Ochtrop、Marcus Gerlach、Tina Stoschek、Dominik Schumacher、Jonas Helma、Martin Penkert、Eberhard Krause、Heinrich Leonhardt、Christian P. R. Hackenberger
DOI:10.1002/anie.201904193
日期:2019.8.19
from native non‐engineered monoclonal antibodiesthrough a simple one‐pot reduction and alkylation. Ethynylphosphonamidates can be easily substituted with hydrophilic residues, giving rise to electrophilic labeling reagents with tunable solubility properties. We demonstrate that ethynylphosphonamidate‐linked ADCs have excellent properties for next‐generation antibody therapeutics in terms of serum stability
Bis‐ethynylphosphonamidates as an Modular Conjugation Platform to Generate Multi‐Functional Protein‐ and Antibody‐Drug‐Conjugates
作者:Marc‐André Kasper、Lukas Lassak、Annette M. Vogl、Isabelle Mai、Jonas Helma、Dominik Schumacher、Christian P. R. Hackenberger
DOI:10.1002/ejoc.202101389
日期:2022.3.15
building blocks were used for a chemoselective addition of two thiol-containing modules in a row to facilitate a simpleprotocol for the construction of protein-protein conjugates and homogeneous Antibody-Drug-Conjugates (ADCs). A third chemoselective modification step allows a highly modularassembly that yields homogeneous and precise Antibody-Drug-Fluorophore-Conjugates (ADFCs).
Modular solid-phase synthesis of electrophilic cysteine-selective ethynyl-phosphonamidate peptides
作者:Sarah Hansen、Jan Vincent V. Arafiles、Philipp Ochtrop、Christian P. R. Hackenberger
DOI:10.1039/d2cc02379b
日期:——
We report an efficient method to install electrophilic cysteine-selective ethynyl-phosphonamidates on peptidesduring Fmoc-based solidphasepeptidesynthesis (SPPS). By performing Staudinger-phosphonite reactions between different solid supported azido-peptides and varying ethynylphosphonites, we obtained ethynyl-phosphonamidate containing peptidic compounds after acidic deprotection, including an
Phenylpropynones as Selective Disulfide Rebridging Bioconjugation Reagents
作者:Diederick Maes、Marvin Nicque、Mehwish Iftikhar、Johan M. Winne
DOI:10.1021/acs.orglett.3c04160
日期:2024.2.2
linkage joining two thiols. The reactivity of various Michael-alkyne reagents is compared in this chemoselective, atom economical, and non-oxidative cross-linking of two thiols. The stability and chemical reactivity of the dithioacetal links are studied, and the utility of the disulfide targeting bioconjugation methodology is shown by the selective rebridging of native cyclic peptides after the reductive