Highly efficient H<sub>2</sub>S scavengers <i>via</i> thiolysis of positively-charged NBD amines
作者:Ismail Ismail、Zhuoyue Chen、Lu Sun、Xiuru Ji、Haishun Ye、Xueying Kang、Haojie Huang、Haibin Song、Sarah G. Bolton、Zhen Xi、Michael D. Pluth、Long Yi
DOI:10.1039/d0sc01518k
日期:——
in vivo are useful for understanding H2S biology as well as its potential therapeutic effects. To this end, we have developed a series of 7-nitro-1,2,3-benzoxadiazole (NBD) amines as potential H2S scavengers. The kinetic studies of thiolysis reactions revealed that incorporation of positively-charged groups onto the NBD amines greatly increased the rate of the H2S-specific thiolysis reaction. We demonstrate
H 2 S是一种众所周知的有毒气体,也是参与许多生物过程的气态信号分子。能够调节体内H 2 S 水平的先进化学工具有助于了解 H 2 S 生物学及其潜在的治疗效果。为此,我们开发了一系列7-硝基-1,2,3-苯并恶二唑(NBD)胺作为潜在的H 2 S清除剂。硫解反应的动力学研究表明,将带正电荷的基团掺入NBD胺上大大提高了H 2 S特异性硫解反应的速率。我们证明这些反应有效进行, NBD-S8在 37 °C 下的二阶速率常数 ( k 2 ) >116 M -1 s -1。此外,我们证明NBD-S8可以有效清除活细胞中酶促产生的内源性 H 2 S。为了进一步发挥生物学意义,我们证明NBD-S8介导小鼠体内H 2 S的清除。