<6-15N>-2'-deoxyadenosine;[15N6]-2'-deoxyadenosine;[6-(15)N]-2'-deoxyadenosine;[6-15N]-2'-deoxyadenosine;2'-Deoxyadenosine-15N1 (may contain up to 1% of unlabelled material);(2R,3S,5R)-5-(6-(15N)azanylpurin-9-yl)-2-(hydroxymethyl)oxolan-3-ol
First Synthesis of [6-15N]-Cladribine Using Ribonucleoside as a Starting Material
摘要:
We have synthesized two types of [6-N-15]-deoxyadenosine analogs: [6-N-15]-2'-deoxyadenosine (1) and [6-N-15]-2-chloro-2'-deoxyadenosine ([6-N-15]-cladribine, 2), which utilized the readily available ribonucleosides inosine and guanosine, respectively, via 3'-benzoyl-5'-trityl- (or teri-butyldimethylsilyl)-substituted intermediates (6, 15).
An improved synthesis of [amino-15N]adenine; useful in the large scale synthesis of 2′-deoxy[amino-15N]adenosine
作者:Joe Kelly、David A. Ashburn、Ryszard Michalczyk、Louis A. Silks
DOI:10.1002/jlcr.2580360704
日期:1995.7
2′-Deoxy[Amino-15N]Adenosine has been constructed in two steps from commercially available starting materials. These reactions have been scaled up to give 5 gram lots of labeled material.
Thermodynamic versus Kinetic Products of DNA Alkylation as Modeled by Reaction of Deoxyadenosine
作者:Willem F. Veldhuyzen、Anthony J. Shallop、Roger A. Jones、Steven E. Rokita
DOI:10.1021/ja011686d
日期:2001.11.1
Alkylating agents that react through highly electrophilic quinone methideintermediates often express a specificity for the weakly nucleophilic exocyclic amines of deoxyguanosine (dG N(2)) and deoxyadenosine (dA N(6)) in DNA. Investigations now indicate that the most nucleophilic site of dA (N1) preferentially, but reversibly, conjugates to a model ortho-quinone methide. Ultimately, the thermodynamically
通过高度亲电子的醌甲基化物中间体反应的烷化剂通常对 DNA 中的脱氧鸟苷 (dG N(2)) 和脱氧腺苷 (dA N(6)) 的弱亲核环外胺表现出特异性。现在的研究表明,dA (N1) 的最亲核位点优先但可逆地与模型邻醌甲基化物结合。最终,热力学稳定的 dA N(6) 异构体通过捕获从 dA N1 加合物的崩溃中瞬时再生的醌甲基化物而积累。dA N1 到 dA N(6) 衍生物的 Dimroth 重排或其他分子内过程的替代转换在中性条件下没有竞争力,如 [6-(15)N]-dA 的研究所证明的那样。
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