- 著者
-
長野 哲雄
- 出版者
- The Society of Synthetic Organic Chemistry, Japan
- 雑誌
- 有機合成化学協会誌 (ISSN:00379980)
- 巻号頁・発行日
- vol.47, no.9, pp.843-854, 1989-09-01 (Released:2010-01-22)
- 参考文献数
- 88
- 被引用文献数
-
6
9
The review describes about the compounds which can enhance the generation of superoxide (O2-) and hydrogen peroxide (H2O2) in the biological systems and about the novel metal complexes which can have superoxide dismutase activity in vivo. Some compounds are readily reduced by one or two electron (s) to produce their reduced forms. When these reduced forms can react with dioxygen, the compounds often have the potential to increase the production (s) of O2- and/or H2O2 in living cells. The review shows that hypervalent heteropentalenes, 3, 4-diaza-1, 6, 6 a-trithiapentalenes (TTP) and 1, 6-dioxa-6 a-thia-2, 5-diazapentalenes (HEP), are capable of this in studies with electrochemical reactions and Escherichia coli, respectively The hypervalent structures may be essential for enhancement of O2- and/or H2O2 generation in living cells. The review also shows that novel metal complexes, Fe (II) -tetrakis N, N, N'- (2-pyridylmethyl) ethylenediamine (Fe-TPEN) and Fe (III) -tris [N- (2-pyridylmethyl) -2-aminoethyl] amine (Fe-TPAA) act as potent superoxide dismutase mimics in vivo. The iron complexes appear to have the possibility of being applied therapeutically.