Deamination and Dimroth Rearrangement of Deoxyadenosine−Styrene Oxide Adducts in DNA
作者:Thomas Barlow、Junko Takeshita、Anthony Dipple
DOI:10.1021/tx980038d
日期:1998.7.1
rates of deamination of 1-substituted deoxyadenosine-styrene oxides and 1-substituted adenosine-styrene oxides were similar. However, the rate of Dimroth rearrangement in beta1-substituted adenosine-styrene oxides was approximately 2.3-fold greater than that of beta1-substituted deoxyadenosine-styrene oxides and approximately 1.5-fold greater in alpha1-substituted adenosine-styrene oxides relative
Studies of the Mechanisms of Adduction of 2‘-Deoxyadenosine with Styrene Oxide and Polycyclic Aromatic Hydrocarbon Dihydrodiol Epoxides
作者:Hye-Young H. Kim、Jari I. Finneman、Constance M. Harris、Thomas M. Harris
DOI:10.1021/tx000054m
日期:2000.7.1
With the PAH dihydrodiol epoxides, only naphthalene dihydrodiol epoxide exhibited significant initial reaction at N1 (50%). No detectable rearranged product was seen in reactions with benzo[a]pyrene dihydrodiol epoxide or non-bay or bay region benz[a]anthracenedihydrodiol epoxide; interestingly, a small amount of N1 attack (5-7%) was seen in the case of benzo[c]phenanthrenedihydrodiol epoxide. It
New strategy for the synthesis of oligodeoxynucleotides bearing adducts at exocyclic amino sites of purine nucleosides
作者:Constance M. Harris、Liang Zhou、Eric A. Strand、Thomas M. Harris
DOI:10.1021/ja00011a044
日期:1991.5
stereochemical control of adduction. In this method the natural polarity of reaction, i.e., with the heterocyclic base as the nucleophilic species and the adducting moiety as electrophile, is reversed. Thus, an amino derivative of the mutagen is used to displace halogen from the appropriate halo-substituted heterocyclic species. The key to the present method is that the displacement reaction is carried