/wp-content/uploads/2016/03/sbc@mit-banner-NRM-2.png 0 0 syn-admin /wp-content/uploads/2016/03/sbc@mit-banner-NRM-2.png syn-admin2004-11-01 20:00:262016-02-08 19:17:26Mass spectrometric identification of 4-hydroxy-2,5-dioxo-imidazolidine-4-carboxylic acid during oxidation of 8-oxoguanosine by peroxynitrite and KHSO5/CoCl2.
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A novel nitration product formed during the reaction of peroxynitrite with 2′,3′,5′-tri-O-acetyl-7,8-dihydro-8-oxoguanosine: N-nitro-N’-[1-(2,3,5-tri-O-acetyl-beta-D-erythro-pentofuranosyl)- 2, 4-dioxoimidazolidin-5-ylidene]guanidine.
Spiroiminodihydantoin is the major product of the 8-oxo-7,8-dihydroguanosine reaction with peroxynitrite in the presence of thiols and guanosine photooxidation by methylene blue.