(<i>Z</i>)-Oxopropene-1,3-diyl, a Linker for the Conjugation of the Thiol Group of Cysteine with Amino-Derivatized Drugs
作者:Elena Petit、Lluís Bosch、Anna M. Costa、Jaume Vilarrasa
DOI:10.1021/acs.joc.8b02686
日期:2019.9.6
We have developed a conjugation reaction based on the thia-Michael addition to activated triple bonds, which can be an alternative to maleimides, the most commonly used reagents to link thiol groups (of Cys) to drugs and labels. An amino group is converted into its propynamide and, in aqueous media at 37 °C and pH 7.4, Cys derivatives are added. The oxopropene-1,3-diyl linker is formed with excellent
我们已经开发了基于硫-迈克尔加成的活化三键的共轭反应,它可以替代马来酰亚胺(马来酰亚胺),马来酰亚胺是最常用的将(巯基)巯基连接到药物和标记物的试剂。将氨基转化为其丙酰胺,并在37°C和pH 7.4的水性介质中添加Cys衍生物。氧代丙烯-1,3-二基连接基具有出色的Z选择性,且无副反应。没有观察到与其他硫醇的交换。