1,3,5,7-tetramethyl-tetrahydro-cyclobuta[1,2-d;3,4-d']dipyrimidine-2,4,6,8-tetraone;trans,anti-Dimethyluracil-Cyclobutan-Photodimer;trans-anti-Dimer von 1,3-Dimethyluracil
Oxidative Cleavage of a Cyclobutane Pyrimidine Dimer by Photochemically Generated Nitrate Radicals (NO<sub>3</sub><sup>•</sup>)
作者:Oliver Krüger、Uta Wille
DOI:10.1021/ol0157252
日期:2001.5.1
[reaction: see text] Photochemically generated nitrate radicals (NO(3)(*)) cleave the stereoisomeric N,N-dimethyl-substituted uracil cyclobutane dimers 1a-d into the monomeric uracil derivative 2 as the major reaction pathway. A preferred splitting of the syn dimers 1a,b was observed. The reaction is expected to proceed through initial one-electron oxidation with formation of an intermediate cyclobutane