The invention provides a novel peroxide scavenger comprising a phosphine compound represented by general formula [I]:
wherein Z1 and Z2 each represents a cyclic group; Ar represents an arylene group; R represents an aliphatic hydrocarbon group; Y represents phosphorus (P), nitrogen (N), or bismuth (Bi); and R1, R2, and R3 each represents a cyclic group, particularly a peroxide scavenger that can scavenge peroxides such as reactive oxygen species which are generated in mitochondria upon exposure to oxidative stress and localized in mitochondria. The phosphine compound of the invention is oxidized by the peroxides localized in mitochondria to increase the fluorescence intensity, whereby the peroxides can be scavenged.
本发明提供了一种新型过氧化物清除剂,其包括由通式[I]所表示的膦化合物:其中Z1和Z2各表示一个环状基团;Ar表示一个芳基烃基团;R表示一个脂肪烃基团;Y表示
磷(P)、氮(N)或
铋(Bi);而R1、R2和R3各表示一个环状基团,特别是一种可以清除过氧化物的过氧化物清除剂,例如在暴露于氧化应激下在线粒体中产生并在线粒体中定位的反应性氧化物种。本发明的膦化合物被定位于线粒体中的过氧化物氧化,从而增加荧光强度,从而可以清除过氧化物。