Synthetic Studies of the Derivatives of Acetylene. I. Reactions of 5-Bromopent-3-en-1-yne
作者:Kikumasa Sato、Masao Hirayama
DOI:10.1246/bcsj.42.2589
日期:1969.9
The preparation of pent-2-en-4-ynylamine and pent-2-en-4-ynylthiol and their derivatives from 5-bromopent-3-en-1-yne was studied. Moreover, in connection with the preparation of the bromide, the rearrangement-bromination of vinylethynylcarbinol was found to give three isomericbromides, 5-bromopent-trans-3-en-1-yne, 5-bromopent-cis-3-en-1-yne, and 3-bromopent-1-en-4-yne. Pent-2-en-4-ynylamine was obtained
Chemoenzymatic Late‐Stage Modifications Enable Downstream Click‐Mediated Fluorescent Tagging of Peptides
作者:Alessandro Colombano、Luca Dalponte、Sergio Dall'Angelo、Claudia Clemente、Mohannad Idress、Ahmad Ghazal、Wael E. Houssen
DOI:10.1002/anie.202215979
日期:——
suitable for copper-catalyzed azide-alkyne cycloaddition, metathesis, and inverse-electron-demand Diels-Alder (IEDDA) reactions. A 10-mer tryptophan-containing macrocyclic peptide was tailored by AcyF, and the resulting modified peptide was successfully labelled with a tetrazine–fluorescein conjugate by IEDDA.