TY - JOUR AB - Pd-mediated reactions have emerged as a powerful tool for the site-selective and bioorthogonal late-stage diversification of amino acids, peptides and related compounds. Indole moieties of tryptophan derivatives are susceptible to C2 H-activation, whereas halogenated aromatic amino acids such as halophenylalanines or halotryptophans provide a broad spectrum of different functionalisations. The compatibility of transition-metal-catalysed cross-couplings with functional groups in peptides, other biologically active compounds and even proteins has been demonstrated. This Review primarily compiles the application of different cross-coupling reactions to modify halotryptophans, halotryptophan containing peptides or halogenated, biologically active compounds derived from tryptophan. Modern approaches use regio- and stereoselective biocatalytic strategies to generate halotryptophans and derivatives on a preparative scale. The combination of bio- and chemocatalysis in cascade reactions is given by the biocompatibility and bioorthogonality of Pd-mediated reactions. © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. DA - 2020 DO - 10.1002/chem.201903756 LA - eng IS - 24 M2 - 5328 PY - 2020 SN - 0947-6539 SP - 5328-5340 T2 - Chemistry - A European Journal TI - Late-Stage Diversification of Tryptophan-Derived Biomolecules. UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-29417209 Y2 - 2024-11-21T22:14:44 ER -