We investigated the superoxide anion scavenging effects of thirteen 2-amino-1,3-selenazoles using a highly sensitive quantitative chemiluminescence method. At 166 μM, the 2-amino-1,3-selenazoles scavenged in the range of 14.3 to 96.7% of O2−. 2-Piperidino-1,3-selenazole and 4-phenyl-2-piperidino-1,3-selenazole exhibited the strongest superoxide anion-scavenging activity among the 2-amino-1,3-selenazoles. The 50% inhibitory concentrations (IC50) of 2-piperidino-1,3-selenazole and 4-phenyl-2-piperidino-1,3-selenazole were determined to be 4.03 μM and 92.6 μM, respectively. Thus, these compounds acted in vitro as effective O2− scavengers.
我们采用高灵敏度的定量
化学发光法研究了十三种 2-
氨基-
1,3-硒唑的超
氧阴离子清除作用。在 166 μ<小>M小>浓度下,2-
氨基-
1,3-硒唑类化合物清除了 14.3% 至 96.7% 的 O2-。在 2-
氨基-
1,3-硒唑类化合物中,2-
哌啶基-
1,3-硒唑和 4-苯基-2-
哌啶基-
1,3-硒唑的超
氧阴离子清除活性最强。经测定,2-
哌啶基-
1,3-硒唑和 4-苯基-2-
哌啶基-
1,3-硒唑的 50%抑制浓度(IC50)分别为 4.03 μ<小>M小>和 92.6 μ<小>M小>。因此,这些化合物在体外是有效的 O2- 清除剂。