8-hydroxyguanosine and oxaluric-acid

8-hydroxyguanosine has been researched along with oxaluric-acid* in 1 studies

Other Studies

1 other study(ies) available for 8-hydroxyguanosine and oxaluric-acid

Article	Year
The pH-dependent role of superoxide in riboflavin-catalyzed photooxidation of 8-oxo-7,8-dihydroguanosine. Organic letters, 2001, Sep-06, Volume: 3, Issue:18 [reaction: see text]. The riboflavin-catalyzed photooxidation of 2',3',5'-tri-O-acetyl-8-oxo-7,8-dihydroguanosine generates a radical intermediate that is competitively trapped by H(2)O, O2(-)(), or O(2). The products of H(2)O trapping have been previously described as the spiroiminodihydantoin (pH >or= 7) and iminoallantoin/guanidinohydantoin (pH < 7) nucleosides. Trapping by O2(-)() leads to the oxaluric acid (pH or= 8.6) pathways (R' ', R' ' = H or 2,3,5-tri-O-Ac-ribofuranosyl). The pH-dependent role of superoxide was probed using Mn-SOD and compared to guanosine and 8-methoxyguanosine photooxidation. Topics: Catalysis; Guanosine; Hydrogen-Ion Concentration; Imidazoles; Oxamic Acid; Oxidation-Reduction; Photochemistry; Riboflavin; Superoxides	2001

Article

Year

The pH-dependent role of superoxide in riboflavin-catalyzed photooxidation of 8-oxo-7,8-dihydroguanosine.

Organic letters, 2001, Sep-06, Volume: 3, Issue:18

[reaction: see text]. The riboflavin-catalyzed photooxidation of 2',3',5'-tri-O-acetyl-8-oxo-7,8-dihydroguanosine generates a radical intermediate that is competitively trapped by H(2)O, O2(-)(*), or O(2). The products of H(2)O trapping have been previously described as the spiroiminodihydantoin (pH >or= 7) and iminoallantoin/guanidinohydantoin (pH < 7) nucleosides. Trapping by O2(-)(*) leads to the oxaluric acid (pH or= 8.6) pathways (R' ', R' ' = H or 2,3,5-tri-O-Ac-ribofuranosyl). The pH-dependent role of superoxide was probed using Mn-SOD and compared to guanosine and 8-methoxyguanosine photooxidation.

Topics: Catalysis; Guanosine; Hydrogen-Ion Concentration; Imidazoles; Oxamic Acid; Oxidation-Reduction; Photochemistry; Riboflavin; Superoxides

2001